Page 3 - Cast Elastomers
P. 3
Material Data Sheet
A Division of American Polymers
System Number 160711
Polycoat-Polycast® Polyester 70A
Typical Physical Properties
for Cured Material
Hardness Shore A 70 ± 2
Ultimate Tensile PSI 5105
Tensile Strength 1079
PSI @100% 3448
Ultimate Elongation PSI @300% 732
Die C Tear 468
Split Tear %
Resilience PLI 64
Compression Set PLI 24
% Rebound 49
%
Viscosity, cps Typical Physical Properties
Mix Ratio, by Weight for Components
AB
650 8750
69 100
Processing Parameters
A-side Temperature ºF 90
B-side Temperature ºF 90
Mold Temperature ºF 150-200
Gel Time Seconds 90±20
Demold Time Minutes 25
Post Cure Time Hours 24
Note: A-side (Polycoat-Polycast® 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.
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