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<h1 class="herobanner_heading">PET vs. Nylon</h1>
<p class="herobanner_para">Compare PET and Nylon to identify the best option for your project</p>
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<h3>Differences Between PET and Nylon</h3>
<p><a href="#">PET (polyethylene terephthalate)</a> is a strong, stiff engineering plastic with excellent machining characteristics, chemical resistance, and bearing and wear properties. PET is often used for food processing machinery applications where low moisture absorption, low thermal expansion, resistance to staining, or resistance to cleaning chemicals is required.</p>
<p><a href="#">Nylon</a> is a strong, stiff engineering plastic with outstanding bearing and wear properties. Nylon is frequently used to replace metal bearings and bushings often eliminating the need for external lubrication. Other benefits include a reduction in part weight, less operating noise, and decreased wear on mating parts.</p>
<p><img class="aligncenter size-md" src="https://cdn11.bigcommerce.com/s-4ysbhsn7sv/images/stencil/original/image-manager/uhmw-vs-nylon.jpg" alt="PET sheets | Nylon sheets, rods, and tubes" loading="lazy" /></p>
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<h4><strong>PET Material Characteristics</strong></h4>
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<h4><strong>Nylon Material Characteristics</strong></h4>
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<td>Strong and stiff<br />Excellent chemical resistance<br />Excellent wear characteristics, even in wet environments<br />Low moisture absorption<br />Low thermal expansion<br />Stain resistant</td>
<td>Strong and stiff<br />Good chemical resistance<br />Reduced noise, weight, and wear of mating parts<br />Excellent bearing and wear properties<br />Easy to machine<br />Easy to fabricate</td>
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<h4><strong>PET Applications</strong></h4>
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<h4><strong>Nylon Applications</strong></h4>
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<td>Food processing machinery components<br />Packaging and machinery parts<br />Bearings and bushings<br />Wear pads<br />Wheels and rollers<br />Filler pistons<br />Valve components<br />Manifolds</td>
<td>Food processing machinery parts<br />Packaging machinery parts<br />Bearings and bushings<br />Wear pads<br />Wheels<br />Rollers<br />Gears<br />Seals and gaskets</td>
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<h4><strong>PET Common Brands</strong></h4>
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<h4><strong>Nylon Common Brands</strong></h4>
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<td>Sustadur PET, TECAPET&trade; PET, Ertalyte&reg;</td>
<td>SUSTAMID&reg;, TECAMID&reg;, NYCAST&reg;</td>
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<h3>Typical Properties of <strong>PET</strong> vs. <strong>Nylon</strong></h3>
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<th>Property</th>
<th><strong>Units</strong></th>
<th>ASTM Test</th>
<th><strong>PET</strong></th>
<th><strong>Nylon</strong></th>
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<td>Specific gravity (73&deg;F)</td>
<td>&ndash;</td>
<td>D792</td>
<td>1.38</td>
<td>1.14</td>
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<td>Tensile strength (73&deg;F)</td>
<td>psi</td>
<td>D638</td>
<td>11,500</td>
<td>12,400</td>
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<td>Tensile elongation (73&deg;F)</td>
<td>%</td>
<td>D638</td>
<td>70</td>
<td>90</td>
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<td>Flexural modulus of elasticity (73&deg;F)</td>
<td>psi</td>
<td>D790</td>
<td>400,000</td>
<td>410,000</td>
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<td>Hardness<br />Rockwell M&amp;R, Durometer Shore D (73&deg;F)</td>
<td>scale as noted</td>
<td>D785,<br />D2240</td>
<td>M93, R125,<br />Shore D 87</td>
<td>M85, R121,<br />Shore D 80</td>
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<td>Izod impact (notched, 73&deg;F)</td>
<td>ft-lbs/in</td>
<td>D256</td>
<td>0.7</td>
<td>1.2</td>
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<td>Coefficient of friction</td>
<td>&ndash;</td>
<td>Dynamic</td>
<td>0.25</td>
<td>0.28</td>
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<td>Coefficient of linear thermal expansion</td>
<td>in/in/&deg;Fx10^-5</td>
<td>D696</td>
<td>3.9</td>
<td>4.5</td>
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<td>Heat deflection temperature (66 psi/264 psi)</td>
<td>&deg;F</td>
<td>D648</td>
<td>240 / 175</td>
<td>&ndash; / 194</td>
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<td>Maximum continuous service temperature in air</td>
<td>&deg;F</td>
<td>&ndash;</td>
<td>230</td>
<td>210</td>
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<td>Water absorption (immersion 24 hours)</td>
<td>%</td>
<td>D570</td>
<td>0.1</td>
<td>1.2</td>
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