K-FLEX 188

 

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API-17, API-18,

PI-13, HS-19

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K-FLEX 188 is a highly reactive, aliphatic polyester polyol which is recommended for aminoplast or isocyanate crosslinked coatings, inks, sealants, elastomers, and adhesives. Its uniform, narrow molecular weight distribution and unique chemical structure provide exceptional and consistent performance and broad compatibility. K-FLEX 188's primary hydroxyl groups also provide reactivity with epoxies in cationic thermal cure systems.



ADVANTAGES:
100% Active
Low VOC
Improved Flexibility
Excellent Cured Film Properties
Low Temperature Cure
Excellent Adhesion to Plastics
High Resistivity
 



TYPICAL PROPERTIES:
Appearance:                            Clear, light straw liquid 
% Active:                                 100
Viscosity, cPs, 25°C:               9,800
Hydroxyl number:                    230
Hydroxyl equiv. weight:           244
Weight per gallon, 25°C :         9.3 lbs. 
 



SOLUBILITY:
Soluble in alcohols, esters, ketones, xylene, Aromatic 100 and Aromatic 150. Partially soluble in mineral spirits. Insoluble in water.
 



APPLICATIONS:
Aerospace
Appliance and Metal Decorating
Automotive OEM & Refinish
Plastic Substrates
Overprint Varnishes
Marine/Maintenance
Glass laminates/Optical coatings
 



TYPICAL USAGE LEVELS:
Typically 5 -10% on total resin solids (TRS) for melamine baking systems or 5 - 25% on TRS for 2-component urethanes.

 
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