ÿþ<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title>Protomold: Design Tips for Rapid Injection Molding</title> <!--Message originally sent to: <%IF NOT ISEMPTY [email] THEN [email]%><%ELSE%><%END IF%>--> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta content="MSHTML 6.00.2900.2604" name=GENERATOR> <STYLE type=text/css> <!-- a:link { text-decoration: none; } a:visited { text-decoration: none; } a:hover { text-decoration: underline; } a:active { text-decoration: underline; } body { background-color: #7f7f7f; margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; } --> </STYLE> </head> <body bgcolor="#7f7f7f" bottommargin="0" leftmargin="0" rightmargin="0" topmargin="0"> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <!--<tr> <td height="27" align="center" bgcolor="#f1f1f1"> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tr> <td height="25" bgcolor="#f1f1f1" valign="middle" align="center"> <p style="color: #666666; font-size:9px; font-family:Verdana, Arial, Helvetica, sans-serif; margin:0;">If this email is not displaying properly, you can <a href="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/default.htm" style="font-weight:normal; line-height:normal; color:#ff6600; font-size:9px; font-family:Verdana, Arial, Helvetica, sans-serif;">view it in your browser.</a></p></td> </tr> <tr> <td height="1" bgcolor="#dfdfdf"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/spacer.gif" width="1" height="1"></td> </tr> <tr> <td height="1" bgcolor="#ffffff"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/spacer.gif" width="1" height="1"></td> </tr> </table> </td> </tr>--> <tr> <td align="center" valign="top" bgcolor="#7f7f7f"> <table width="662" border="0" cellpadding="0" cellspacing="0" background=""> <tr> <td><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/header.gif"" alt="Protomold: Rapid Injection Moulding" width="662" height="80" border="0"></a></td> </tr> <tr> <td> <table width="662" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="429" valign="top" bgcolor="#ffffff"> <table width="429" border="0" cellspacing="0" cellpadding="0"> <tr> <td height="42" colspan="3"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/issue_head.gif" alt="May Design Tip" width="429" height="42" border="0"></td> </tr> <tr> <td colspan="3"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/spacer.gif" width="18" height="25" border="0"></td> </tr> <tr> <td width="18"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/spacer.gif" width="18" height="3" border="0"> </td> <td width="393" align="left" valign="top"><div id="left_body"><p style="font:bold 15px Verdana, Arial, Helvetica, sans-serif; color:#333333; margin-top:0;"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/purple_arrow_box.gif" width="17" height="17" vspace="3" border="0" align="absmiddle" style="margin: 0;">&nbsp;First Impressions</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;">The word &#8220;prototype&#8221; comes from the Greek, <em>protos</em> meaning &#8220;first&#8221; and <em>typos</em> meaning &#8220;impression.&#8221; Like many words, its meaning has changed over time, so that a single finished product can be preceded by a number of &#8220;first impressions.&#8221; And while we re often told the importance of making a great first impression, not all prototypes need to be great; some need only be adequate for a specific task. (Of course before committing to production, you might want at least <em>one</em> great first impression.)</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;">Prototype plastic parts serve a variety of purposes. They can be used to test: </p> <blockquote> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Form:</strong> Appearance, including overall shape, surface texture, and color.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Fit:</strong> The ability to interconnect with other parts of an assembly.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Function:</strong> The ability to withstand various kinds of stress under varying conditions, such as mechanical fatigue, heat, radiation or chemicals.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Manufacturability:</strong> The ability to be made using standard high volume production methods such as machining or injection moulding.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Viability:</strong> The ability to appeal to the market. This means getting a production equivalent part into the hands of the consumer for testing.</p> </blockquote> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/keychain.jpg" width="393" height="292" border="0"></p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;">Because product development is an iterative process, it can include multiple prototyping steps, each serving a different function.</p> <p style="margin:19px 0 0 0; font:bold 13px Verdana, Arial, Helvetica, sans-serif; color:#663399;">1. Virtual Prototyping</p> <p style="margin: 5px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;">Virtual prototyping is supported by advanced 3D CAD software and actually produces a simulation of the part being designed. It is ideal for early conceptualization.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Pros:</strong> It allows parts to be designed, revised, virtually fitted together, and tested under simulated stress using finite element analysis. It lets a designer create and revise a design in real time at no cost except that of the software. </p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Cons:</strong> It is entirely digital, so going directly to high volume production from this point is very risky.</p> <p style="margin:19px 0 0 0; font:bold 13px Verdana, Arial, Helvetica, sans-serif; color:#663399;">2. Stereolithography Apparatus (SLA)</p> <p style="margin: 5px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;">SLA is an additive process that uses a computer controlled laser to cure layers of photopolymer resin. The process is suitable for making concept models or prototypes to support presentations or trade shows.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Pros:</strong> The process is a relatively inexpensive and fast way to make a single part, produces a good surface finish, and can reproduce very complex (even unmanufacturable) geometries. It is a good choice for testing the form and fit of a part.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Cons:</strong> It only works with a very limited range of proprietary resins and produces a fragile end product whose dimensional stability suffers over time.</p> <p style="margin:19px 0 0 0; font:bold 13px Verdana, Arial, Helvetica, sans-serif; color:#663399;">3. Selective laser sintering (SLS)</p> <p style="margin: 5px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;">SLS uses a computer-controlled laser to fuse powdered material. As is the case with SLA, SLS is suitable for making initial prototypes for demonstration purposes.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Pros:</strong> The process is relatively quick and inexpensive, produces more durable parts than SLA, and can also reproduce very complex geometries. It is a good choice to test form, fit and, to some extent, function.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Cons:</strong> It works with a very a limited range of materials, and the resulting parts have a rough finish. Although the parts tend to be more durable than those made using SLA, they are weaker than injection moulded or machined parts. For these reasons it is not a good choice to test manufacturability or viability.</p> <p style="margin:19px 0 0 0; font:bold 13px Verdana, Arial, Helvetica, sans-serif; color:#663399;">4. Fused deposition modeling (FDM) </p> <p style="margin: 5px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;">FDM uses a thermal print head to deposit and fuse layers of resin. The process can produce both demonstration parts as well as low volume production parts for some applications.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Pros:</strong> It is a relatively inexpensive way to make prototype parts that are stronger than either SLA or SLS, and can also produce very complex geometries. It can be a good choice for testing form, fit and sometimes function. The material properties are better than SLA or SLS.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Cons:</strong> The process is much slower than the other additive processes and suffers from the same stair-stepped surface finishes (although this can be addressed to some extent with post-processing). It also only works with a small number of proprietary materials and cannot produce parts with the standard mechanical properties of CNC machined or injection moulded parts. It is usually not a good choice for testing, manufacturability or viability.</p> <p style="margin:19px 0 0 0; font:bold 13px Verdana, Arial, Helvetica, sans-serif; color:#663399;">5. Three dimensional printing (3DP) </p> <p style="margin: 5px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;">3DP uses a print head to lay down a plaster-like material. As is the case with SLA, it is well suited for producing conceptual models during the early stages of design.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Pros:</strong> This is the fastest and least expensive of the additive processes. It allows the production of colored models and is ideal for testing form.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Cons:</strong> Parts have a rough surface finish and are very fragile. The material choices are even more limited than with other additive processes, and for these reasons it is not a good choice for testing fit, function, manufacturability or viability.</p> <p style="margin:19px 0 0 0; font:bold 13px Verdana, Arial, Helvetica, sans-serif; color:#663399;">6. Polyjet (PJET) </p> <p style="margin: 5px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;">PJET is similar to SLA, using computer controlled UV light to cure layers of photopolymer. As is the case with SLA, PJET is used primarily as a concept modeling process.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Pros:</strong> The process offers the same advantages of SLA, but the process is less expensive to operate and is more office-friendly.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Cons:</strong> It has the same disadvantages as SLA, and is much more limited in the size of parts that can be made.</p> <p style="margin:19px 0 0 0; font:bold 13px Verdana, Arial, Helvetica, sans-serif; color:#663399;">7. CNC machining </p> <p style="margin: 5px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;">CNC machining uses standard computer controlled equipment to cut parts from a solid block of material. With the advent of First Cut&rsquo;s automated toolpath generation technology, the process is useful for demonstration parts through low volume production.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Pros:</strong> It is as fast as the additive processes, and because it uses standard materials as feedstock it produces parts comparable to injection moulding. For these reasons the process is a good choice for testing form, fit, function and viability.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Cons:</strong> The process is generally not well suited for production quantities in excess of hundreds of parts (see rapid injection moulding).</p> <p style="margin:19px 0 0 0; font:bold 13px Verdana, Arial, Helvetica, sans-serif; color:#663399;">8. Rapid injection moulding </p> <p style="margin: 5px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;">Rapid injection moulding involves the use of proprietary software to automate the process of quoting, designing and manufacturing injection moulds. It is useful in the production of small to medium quantities of parts for testing or bridge tooling prior to production.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Pros:</strong> Rapid injection moulding produces real injection moulded parts in as little as one business day at a fraction of the cost of conventional injection moulding. The parts are ideal for testing function, manufacturability and viability.</p> <p style="margin: 19px 0 0 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>Cons:</strong> The non-recurring cost to manufacture the mould can make this process more expensive than additive prototyping processes for low volumes. </p> <p style="margin: 19px 0 10px 0; color: #333333; font-size:11px; line-height:17px; font-family:Verdana, Arial, Helvetica, sans-serif;">For a free, detailed report on prototyping processes, including detailed information on material strengths, surface finishes and process selection, <a href="http://www.protomold.co.uk/PrototypingProcesses.aspx?s=PMDTUK0509&ls=PMDTUK0509" target="_blank" style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#ff6600;">visit our web site.</a> </p> </div></td> <td width="18"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/spacer.gif" width="18" height="3" border="0"></td> </tr> <tr> <td colspan="3"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/spacer.gif" width="1" height="1" border="0"></td> </tr> </table> </td> <td width="7" align="right" valign="top" bgcolor="#404040"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/right_col_top_corner.gif" width="7" height="7" border="0"></td> <td width="223" valign="top" bgcolor="#4e4e4e"> <table width="223" border="0" cellspacing="0" cellpadding="0"> <tr> <td height="7" colspan="3"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/right_col_top.gif" width="223" height="7" border="0"></td> </tr> <tr> <td height="12" colspan="3"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/spacer.gif" width="18" height="12" border="0"></td> </tr> <tr> <td width="12"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/spacer.gif" width="12" height="3" border="0"></td> <td width="199" align="left" valign="top"><div id="right_body"> <!-- ProtoQuote --> <p style="padding:0 0 5px 0; font-size:14px; line-height:16px; font-family:Trebuchet MS, Arial, sans-serif; font-weight:bold; margin:0;"><span style="color:#ffffff;">ProtoQuote&reg;<br>Interactive Quotes</span></p><p style="margin:5px 0 0 0;"><a href="http://www.protomold.co.uk/PartUpload.aspx?s=PMDTUK0509&ls=PMDTUK0509" target="_blank"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/protoquote_promo_screen.jpg" alt="ProtoQuote" width="199" height="148" border="0"></a></p> <p style="margin:10px 0 0 0; color: #cccccc; font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif;"><strong>ProtoQuote is new and improved! Try it out today:</strong></p> <p style="margin:5px 0 0 0; color: #cccccc; font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif;"><a href="http://www.protomold.co.uk/PartUpload.aspx?s=PMDTUK0509&ls=PMDTUK0509" target="_blank" style="color:#ff6600;font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif;">Upload your 3D CAD model and we will e-mail you an informative quote.</a></p> <!-- ProtoView --> <p style="margin:20px 0 0 0 ;"><a href="http://www.protomold.co.uk/DesignGuidelines_FillAnalysis.aspx?s=PMDTUK0509&ls=PMDTUK0509" target="_blank"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/protoflow_promo.jpg" alt="ProtoFlow Analysis" width="199" height="130" border="0"></a></p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 20px 0;"><strong>ProtoFlow&reg; Analysis</strong><br>Select ProtoQuotes include a ProtoFlow analysis</a> to predict potential mould fill issues.<br><a href="http://www.protomold.co.uk/DesignGuidelines_FillAnalysis.aspx?s=PMDTUK0509&ls=PMDTUK0509" target="_blank" style="color:#ff6600;font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif;">Watch a video demo.</a></p> <!-- Design Guidelines --> <p style="margin:15px 0 0 0; font-size:14px; line-height:16px; font-family:Trebuchet MS, Arial, sans-serif; font-weight:bold; padding:16px 0 10px 0; border-top:1px solid #5d5d5d;"><span style="color:#ffffff;">Design Guidelines</span></p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:0 0 20px 0;">As always, you can visit the <a href="http://www.protomold.co.uk/DesignGuidelines.aspx?s=PMDTUK0509&ls=PMDTUK0509" target="_blank" style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#ff6600;">Protomold Design Guide</a> for helpful Rapid Injection Moulding design information.</p> <p style="margin:15px 0 0 0; font-size:14px; line-height:16px; font-family:Trebuchet MS, Arial, sans-serif; font-weight:bold; padding:16px 0 5px 0; border-top:1px solid #5d5d5d;"><span style="color:#ffffff;">Guess the Part</span></p><p style="margin:5px 0 0 0;"><a href="http://protolabs.com/calendar?s=PMDTUK0509&ls=PMDTUK0509" target="_blank"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/guessthepart.jpg" width="199" height="130" border="0"></a></p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 20px 0;">If you think you can identify this month's application, <a href="http://protolabs.com/calendar?s=PMDTUK0509&ls=PMDTUK0509" target="_blank" style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#ff6600;">visit the 2009 Cool Parts Calendar site and submit your guess.</a> </p> <p style="margin:15px 0 0 0; font-size:14px; line-height:16px; font-family:Trebuchet MS, Arial, sans-serif; font-weight:bold; padding:16px 0 10px 0; border-top:1px solid #5d5d5d;"><span style="color:#ffffff;">Plastics Trivia Question</span></p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:0;">The early plastic Galalith:</p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 8px 0;"><a href="http://www.protomold.co.uk/RegisterPollResult.aspx?email=<%IF NOT ISEMPTY [email] THEN [email]%><%ELSE%>unknown<%END IF%>&pollName=PMDTUK0509&result=a" target="_blank"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/radio_button.gif" width="13" height="13" border="0" align="absmiddle"></a>&nbsp;<a href="http://www.protomold.co.uk/RegisterPollResult.aspx?email=<%IF NOT ISEMPTY [email] THEN [email]%><%ELSE%>unknown<%END IF%>&pollName=PMDTUK0509&result=a" target="_blank" style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#ff6600;"><strong>A.</strong>&nbsp;was based on protein derived from animal hooves.</a></p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 8px 0;"><a href="http://www.protomold.co.uk/RegisterPollResult.aspx?email=<%IF NOT ISEMPTY [email] THEN [email]%><%ELSE%>unknown<%END IF%>&pollName=PMDTUK0509&result=b" target="_blank"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/radio_button.gif" width="13" height="13" border="0" align="absmiddle"></a>&nbsp;<a href="http://www.protomold.co.uk/RegisterPollResult.aspx?email=<%IF NOT ISEMPTY [email] THEN [email]%><%ELSE%>unknown<%END IF%>&pollName=PMDTUK0509&result=b" target="_blank" style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#ff6600;"><strong>B.</strong>&nbsp;derives its name, in part, from the Greek word gala, meaning milk.</a></p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 8px 0;"><a href="http://www.protomold.co.uk/RegisterPollResult.aspx?email=<%IF NOT ISEMPTY [email] THEN [email]%><%ELSE%>unknown<%END IF%>&pollName=PMDTUK0509&result=c" target="_blank"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/radio_button.gif" width="13" height="13" border="0" align="absmiddle"></a>&nbsp;<a href="http://www.protomold.co.uk/RegisterPollResult.aspx?email=<%IF NOT ISEMPTY [email] THEN [email]%><%ELSE%>unknown<%END IF%>&pollName=PMDTUK0509&result=c" target="_blank" style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#ff6600;"><strong>C.</strong>&nbsp;was the first plastic that could be easily moulded.</a></p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 8px 0;"><a href="http://www.protomold.co.uk/RegisterPollResult.aspx?email=<%IF NOT ISEMPTY [email] THEN [email]%><%ELSE%>unknown<%END IF%>&pollName=PMDTUK0509&result=d" target="_blank"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/radio_button.gif" width="13" height="13" border="0" align="absmiddle"></a>&nbsp;<a href="http://www.protomold.co.uk/RegisterPollResult.aspx?email=<%IF NOT ISEMPTY [email] THEN [email]%><%ELSE%>unknown<%END IF%>&pollName=PMDTUK0509&result=d" target="_blank" style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#ff6600;"><strong>D.</strong>&nbsp;was incompatible with dyes and, therefore, produced only in white.</a></p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 8px 0;"><a href="http://www.protomold.co.uk/RegisterPollResult.aspx?email=<%IF NOT ISEMPTY [email] THEN [email]%><%ELSE%>unknown<%END IF%>&pollName=PMDTUK0509&result=e" target="_blank"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/radio_button.gif" width="13" height="13" border="0" align="absmiddle"></a>&nbsp;<a href="http://www.protomold.co.uk/RegisterPollResult.aspx?email=<%IF NOT ISEMPTY [email] THEN [email]%><%ELSE%>unknown<%END IF%>&pollName=PMDTUK0509&result=e" target="_blank" style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#ff6600;"><strong>E.</strong>&nbsp;is still widely used today in the production of black piano keys.</a></p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 0 0;"><em>(Honour System: No Googling, Yahooing, or Dogpiling until after you've submitted your guess.)</em></p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:25px 0 0 0;"><strong>Last month's question/results:</strong><br><span style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif;">Which of the following is <em>not</em> true of phenols?</span>:</p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 0 0;"><strong>A.</strong>&nbsp;Laminate countertops are made with phenolic resin.</p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:5px 0 0 0;"><strong>B.</strong>&nbsp;Capsaicin, found in chili peppers, is a phenolic compound.</p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:5px 0 0 0;"><strong>C.</strong>&nbsp;Carbonic acid, a solution of phenol, was introduced by Lister as a surgical antiseptic.</p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:5px 0 0 0;"><strong>D.</strong>&nbsp;Glass-reinforced phenolic bearings are used in automatic transmissions.</p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:5px 0 0 0;"><strong>E.</strong>&nbsp;Poison ivy is a natural source of the phenol urushiol.</p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 10px 0;">The correct answer is<br> <strong>C. Carbonic acid, a solution of phenol, was introduced by Lister as a surgical antiseptic. </strong>(The solution used as an antiseptic was carbolic acid.)</p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 10px 0;">The responses are represented in the following chart:</p> <p style="margin:15px 0 0 0; text-align:center;"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/0409graph.gif" alt="Last Month's Results" width="133" height="90" border="0"></p> <!-- Upcoming Tradeshows --> <p style="margin:15px 0 0 0; font-size:14px; line-height:16px; font-family:Trebuchet MS, Arial, sans-serif; font-weight:bold; color:#ffffff; padding:16px 0 10px 0; border-top:1px solid #5d5d5d;">Upcoming Tradeshows</p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:0;">Want to talk in person? Stop by to discuss your design.</p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 0 0;"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/green_arrow.gif" width="8" height="8" border="0" align="baseline">&nbsp;<strong><a href="http://www.f-i-p.com/Fip/en/index.php" target="_blank" style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#ff6600;">FIP 2009</a></strong><br> 16-19 June 2009 <br> Stand #C3 <br> Eurexpo <br> Lyon, France </p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 0 0;"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/green_arrow.gif" width="8" height="8" border="0" align="baseline">&nbsp;<strong><a href="http://www.eurolite-expo.com/" target="_blank" style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#ff6600;">Eurolite 2009</a></strong><br> 23-25 June 2009 <br> Stand #2303 <br> Salzburg Exhibition Centre <br> Salzburg, Austria </p> <p style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; margin:10px 0 20px 0;"><a href="http://www.protomold.co.uk/ContactUs.aspx#upcoming?s=PMDTUK0509&ls=PMDTUK0509" target="_blank" style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#ff6600;">For more information, visit our web site at Protomold.co.uk.</a> </p> <p style="margin:15px 0 0 0; font-size:14px; line-height:16px; font-family:Trebuchet MS, Arial, sans-serif; font-weight:bold; padding:16px 0 10px 0; border-top:1px solid #5d5d5d;"><span style="color:#ffffff;">Suggestions</span></p> <p style="font-size:11px; line-height:15px; color: #cccccc; font-family:Verdana, Arial, Helvetica, sans-serif; margin:0 0 10px 0;">Please e-mail suggested topics for future Design Tips, questions for future Designer Surveys, and obscure bits of Plastics Trivia to <a href="mailto:news@protomold.co.uk" style="font-size:11px; line-height:15px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#ff6600;">news@protomold.co.uk.</a></p> </div> </td> <td width="12"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/spacer.gif" width="12" height="3" border="0"></td> </tr> <tr> <td colspan="3">&nbsp;</td> </tr> </table> <!-- ProtoQuote --> </td> <td width="3" valign="top" bgcolor="#FFFFFF"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/spacer.gif" width="3" height="3" border="0"></td> </tr> </table></td> </tr> <tr> <td><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/footer.gif" width="662" height="10"></td> </tr> <tr> <td> <!-- Footer --> <table width="662" border="0" cellspacing="0" cellpadding="0"> <tr> <td colspan="3"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/spacer.gif" width="18" height="15" border="0"></td> </tr> <tr> <td width="18"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2009/2009-05_designtips/images/spacer.gif" width="18" height="3" border="0"></td> <td width="626" valign="top" align="left"><div id="footer" style="margin:0; width:626px; font:9px/14px Verdana, Arial, Helvetica, sans-serif; color:#cccccc;"> <p style="margin:0; color: #cccccc; font-size:9px; line-height:14px; font-family:Verdana, Arial, Helvetica, sans-serif;">Unit A, Hortonpark Industrial Estate, Hortonwood 7, Telford, Shropshire, TF1 7GX, United Kingdom | <strong>t: </strong>00800 77686665 |<strong> f:</strong> +44 1952 677 126 | <a href="http://www.protomold.co.uk?s=PMDTUK0509&ls=PMDTUK0509" style="color: #cccccc; font-size:9px; line-height:14px; font-family:Verdana, Arial, Helvetica, sans-serif;text-decoration:underline;" target="_blank">www.protomold.co.uk</a><br> &copy; Protomold 1999-2009<br> <br> </p> </div></td> <td width="18"><img src="http://www.protomold.co.uk/Design_Tips/UnitedKingdom/2008/2009-05_designtips/images/spacer.gif" width="18" height="3" border="0"></td> </tr> </table> </td> </tr> </table></td> </tr> </table> </body> </html>