K-FLEX XM-337

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.