Technical Data Sheet
K-FLEX XM-337 is an aliphatic saturated polyester diol modifier resin designed to provide increased toughness and chemical resistance for solvent based and high solids systems. It is recommended for use in 1 and 2 component polyurethanes, and blocked isocyanate systems. Benefits include low color, UV durability, high hardness, high impact resistance, abrasion resistance and overall increased toughness.
Optically clear urethane elastomers
Urethane ballistic systems
Appearance: Clear liquid
% Active: 100
Viscosity, cPs, 25°C: 70,000
Hydroxyl number: 220
Hydroxyl equiv. weight: 260
Weight per gallon, 22°C: 9.25 lbs.
K-FLEX XM-337 is soluble in most polar organic solvents including alcohols, glycols, ketones, esters, glycol ethers and aromatics. It is not soluble in water or aliphatics.
TYPICAL USAGE LEVELS:
K-FLEX XM-337 may be used as a reactive resin modifier, or as a primary resin, as required.