Description
Hi-block BI-175 is a blocked polyisocyanate based on hexamethylene diisocyanate and designed for high performance coatings in a wide range of application areas. Especially it is used for the coil coating, can coating and automotive coating to improve the flexibility and adhesion and chipping resistance of baking coating systems.
Composition
A blocked aliphatic polyisocyanate based on hexamethylene diisocyanate with aromatic solvent
Properties
Appearance
Clear, pale yellow liquid
Activity
72±2%
Viscosity(25°C)
3,000±1,000cps
Density(25°C)
1.04~1.08G/cm3
Free NCO content
Max. 0.1%
Solvent
Aromatic 100(Kocoso1#100)
Advantages
Fast cure and lower cure temperatures
Good flexibility and adhesion
Good chip resistance and mechanical properties
Excellent weather stability
Applications (Powder coating)
One component baking systems with hydroxyl functional coreactants - Alkyds, Acrylics, Polyesters, Polyurethane and Epoxies etc.
Coil coatings, can coatings, general industrial coatings, appliances and automotive coatings etc.
The cure time and temperature required are dependent upon the choice of coreactant and catalysis.
Recommended Amounts and Incorporation Methods
In coatings on total resin solids, 2.0~5.0% of delivery form.
Hi-block BI-175 is easily incorporated into coating formulations by the standard mixing operation.
Blocked Isocyanate (Hi-block BI-175)
Description
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