
Curing Agent
Polyisocyanate hardeners for two component polyurethane systems
What This Category Covers
Curing agents set what a coating or adhesive finally becomes. They control hardness, adhesion, abrasion resistance and durability, and they decide whether the film is still white in three years or has gone amber.
Formulators need a hardener whose NCO content, viscosity and solvent carrier match the polyol side and the application method. Guessing costs a batch; the grade tables on these pages remove the guesswork.
Who Buys From This Category
- Industrial and protective coating producers
- Automotive OEM and refinish coating makers
- Wood and furniture coating formulators
- Structural polyurethane adhesive makers
- High solids and low VOC system developers
All Curing Agent Products
Every product in this category, with its full grade table on the product page.

Biuret and isocyanurate grades for light stable 2K polyurethane coatings
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The HB series for flexible high build light resistant polyurethane coatings
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Light resistant isocyanurate hardeners for high end decorative coatings
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Fast curing aromatic hardeners for 2K polyurethane coatings and adhesives
View SpecificationsCore Advantages
Biuret and Isocyanurate Side by Side
HDI biuret grades for flexibility, HDI and IPDI isocyanurate grades for crosslink density and weathering, TDI adducts where cost and speed matter.
Supply Forms That Match Your Line
Solvent free grades for high solids work, and 50 to 90 percent solutions in BA, MPA/X and other carriers for conventional solventborne systems.
Pot Life Stated With Conditions
Pot life is quoted against formulation, temperature and humidity rather than as a single headline number.
Industries That Use These Materials

Automotive coatings and interiors are where yellowing resistance, gloss retention and seat comfort are all judged by the end customer rather than by a laboratory.
See Applications
Protective coatings are bought on service life. The raw material decisions behind them are about crosslink density, film flexibility and how the system behaves once VOC limits tighten.
See Applications
Adhesive makers live between two constraints: open time long enough to apply the product, and final strength high enough to replace a mechanical fastener.
See ApplicationsCuring Agent Questions
How many curing agent grades do you list?
This category covers 4 product families, and each one carries the full manufacturer grade table on its own page rather than a summary.
Can I order a mixed container across categories?
Yes. Isocyanates, curing agents, resins, polyols and chain extenders can go on one order, which is the main reason buyers consolidate with us.
Do you supply samples from this category?
Samples for laboratory testing and formulation validation are free of charge with you covering shipping, and take about 7 days.
What are the payment terms?
30% deposit in advance, 70% against a copy of the bill of lading. Bank transfer, Xtransfer or PayPal.
How is hazard packing handled?
High quality export packaging as standard, with specialised hazard packing for dangerous goods and validated cold storage shippers for temperature sensitive items. Non standard packing may carry an additional charge.
Get a Quote on Curing Agent
Tell us the grade, the volume and the destination port. Technical response within 24 hours.
