IsoMold URP 4106

IsoMold URP 4106 is an all-purpose polyurethane system used to make molds of detailed masters that contain shallow undercuts. Some of the most common uses of IsoMold URP 4106 are to make molds for point-of-purchase displays; rapid prototypes; special effects; taxidermy; and sculpture reproductions. IsoMold URP 4106 is a two-part polyurethane molding system. IsoMold URP 4106 is mixed one-to-one by volume and cures at room temperature. IsoMold URP 4106 cures to a medium hardness (Shore A33 ± 2); blue rubber.


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Technical Data Sheet
Product Types



Product Testing

Test PerformedTest Results
Color - POLBlue  
Cure Time24 Hours 
Demold Time24 Hours 
Elongation - ASTM D412300 % 
Hardness - ASTM D2240 - Shore A31-35 Shore A 
Mix Time - by Hand1-2 Minutes 
Pot Life - 100g15 Minutes 
Ratio by Volume - ISO:POL1:1  
Tear Strength - ASTM D624, Die C72 pli 
Tensile Modulus - ASTM D412278 psi 
Tensile Strength - ASTM D412300 psi