IsoMold CMR 3001

IsoMold CMR 3001 is used to make molds of detailed masters that contain some undercuts. IsoMold CMR 3001 was specifically designed to be used with pigmented and non-pigmented concrete. It has excellent release characteristics and durability. IsoMold CMR 3001 is a two-part polyurethane molding system. IsoMold CMR 3001 is mixed one-to-one by volume and cures at room temperature. IsoMold CMR 3001 cures to a soft (Shore A30 ± 2); rubber.


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Technical Data Sheet


  • Concrete casting applications
  • Point of Purchase Displays
  • Sculpture Repoductions


  • Convenient 1:1 mixing ratio
  • Excellent release characteristics
  • High tear strength and elongation
  • Low shrinkage
  • Picks up fine detail in molding/casting applications
Product Types

Concrete Mold Rubber


Product Testing

Test PerformedTest Results
Color - ISOCololess-Pale Yellow  
Color - POLGray, white  
Demold Time16-24 Hours 
Elongation - ASTM D412600 % 
Full Cure7 Days 
Hardness - ASTM D2240 - Shore A28-32 Shore A 
Initial Cure Time48-72 Hours 
Linear Shrinkage - ASTM D25660 % 
Mix Time - by Hand1-2 Minutes 
Pot Life - 100g15-17 Minutes 
Ratio by Volume - ISO:POL1-1  
Ratio by Weight - ISO:POL1-1  
Tear Strength - ASTM D624, Die C85 pli 
Tensile Modulus - ASTM D412120 psi 
Tensile Modulus - ASTM D412 - 100%110 psi 
Tensile Modulus - ASTM D412 - 200%180 psi 
Tensile Modulus - ASTM D412 - 300%220 psi 
Tensile Strength - ASTM D412400 psi 
Weight per gallon - ISO8.1  
Weight per gallon - POL8.1