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        # CPW in Industrial Paints: The Cost-Effective Flame Retardant Plasticizer

        

**Topic:** Coatings

        

Your industrial paint client needs flame retardancy certification. The specialty fire retardant additive costs ₹350/kg. What if you could achieve the same result with an additive that costs ₹120/kg  -  and improves the paint's flexibility at the same time?

        
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## Problem

Industrial coatings for warehouses, factories, and oil storage facilities require fire resistance certification. Traditional flame retardant additives (like phosphate esters or brominated compounds) are expensive and can negatively impact paint properties  -  reducing adhesion, causing cracking in cold weather, or yellowing after UV exposure. Paint formulators are constantly searching for more cost-effective solutions that don't compromise film quality.

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## Likely cause

This issue often stems from inconsistent compounding temperatures, inferior raw material purity, or unbalanced stabilizer ratios within the formulation matrix.

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## Corrective direction

**NBT Diamond Grade CPW (52% Chlorine)** is water-white and provides excellent compatibility with most industrial coating binder systems (alkyds, epoxies, chlorinated rubber). At 10-20% by weight of the binder, it delivers sufficient chlorine loading for flame retardancy (self-extinguishing properties) while simultaneously improving the elasticity and cold-crack resistance of the dried film. Because it's a liquid, it integrates seamlessly into the grinding stage without requiring special dispersion equipment. Our Diamond Grade's extremely low color ensures it won't affect the shade of light-colored or white coatings.

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          ## Frequently Asked Questions

          
### Does CPW affect paint drying time?

CPW does not evaporate like solvents, so it stays in the film. It acts as a permanent plasticizer. Adjust your solvent ratio if needed for wet-film leveling.

### Is CPW in paint safe for food-contact environments?

CPW is not recommended for direct food-contact applications. For food processing areas, use an epoxy system with specialty FR additives.

        
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By NBT Technical Desk · Updated 2026-06-07

        

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