K-FLEX XM-337
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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.
ADVANTAGES:
Optically clear urethane elastomers
Urethane ballistic systems
Ophthalmic lenses
Aerospace
Thermoplastic urethanes
Structural adhesives
TYPICAL PROPERTIES:
Appearance: Clear liquid
% Active: 100
Viscosity, cPs, 25°C: 55,000
Hydroxyl number: 220
Hydroxyl equiv. weight: 260
Weight per gallon, 22°C: 9.25 lbs.
SOLUBILITY:
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.