Isocast 85A

Isocast 85A is a color stable, 100% solids, polyurea hybrid joint filler for concrete flooring. This material provides exceptional adhesion characteristics and fast cure times. This durable joint filler can withstand the abuse from the heaviest traffic areas while still performing well in more decorative applications. With a flush shave window of 30 minutes to 8 hours, this joint filler allows rapid hardness buildup without imposing significant time constraints on the applicator.


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Technical Data Sheet


  • Concrete Crack Fill
  • Concrete Joint Fill


  • 100% Solids
  • 1:1 System by volume
  • Can be dispensed via a Cartridge
  • Chemical resistance
  • Excellent Adhesion to Concrete
  • Fast cure and dry time
  • Zero VOCs
Product Types



Product Testing

Test PerformedTest Results
% Solids100  
Elongation - ASTM D412200-300 % 
Full Cure3-5 Days 
Gel Time1-2 Minutes 
Hardness - ASTM D2240 - Shore A85-90 Shore A 
Ratio by Volume - ISO:POL1-1  
Tack Free Time7-15 Minutes 
Tear Strength - ASTM D624, Die C150-250 pli 
Tensile Strength - ASTM D4121000-1200 psi