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        <div id="content-top1">Page 6 - Cast Elastomers</div>
        <div id="content-top2">P. 6</div>
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    <pre style="white-space:pre-line"><code>Material Data Sheet

A Division of American Polymers

                                            System Number 278903

Polycoat-PolycastÂ® PPG 45A

                                 Typical Physical Properties
                                       for Cured Material

Hardness                           Shore A                    45 Â± 2
Ultimate Tensile                      PSI                     1413
Tensile Strength                                               191
                                 PSI @100%                     381
Ultimate Elongation              PSI @300%                    1052
Die C Tear
Split Tear                             %                        79
Resilience                            PLI                       41
Compression Set                       PLI                       74
                                 % Rebound                      72
                                       %

Viscosity, cps                   Typical Physical Properties
Mix Ratio, by Weight                    for Components

                                                       AB

                                                   650 730
                                                    31 100

                                 Processing Parameters

A-side Temperature                   ÂºF        80
B-side Temperature                   ÂºF        80
Mold Temperature                     ÂºF     120-150
Gel Time                         Seconds       170
Demold Time                      Minutes       30
Post Cure Time                    Hours        24

Note: A-side (Polycoat-PolycastÂ® ISO 31181) MDI prepolymer is a modified MDI compound of diphenylmethane
diisocyanate and sufficient glycol used in all the above tested.

Note: The conditions of your use and application of our products, technical assistance and information (whether verbal, written or by
way of production evaluation), including any suggested formulations and recommendations, are beyond our control. Therefore, it is
imperative that you test our products, and request technical assistance and information to determine to your own satisfaction whether
they are suitable for your intended uses and application.

         14722 Spring Avenue, Santa Fe Springs, CA 90670-5108 USA â™¦ Tel: 562/802-8834 â™¦ Fax: 562/921-7363 â™¦ www.polycoatusa.com â™¦ CopyrightÂ© May 2011 Polycoat Products</code></pre>
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