Melamine polyphosphate

Melamine polyphosphate (CAS 218768-84-4), also sold under the common name melamine phosphate, is a halogen-free flame retardant used across plastics, textiles, and construction materials.

Where is Melamine polyphosphate used?

• Engineering thermoplastics such as polyamide and polyurethane: enables UL 94 V-0 ratings
• Textile back-coating and paper treatments: meets fire classification standards for upholstery, curtains, and building insulation facings
• Intumescent coatings for structural steel and timber: char-forming acid source
• Rigid foam and board insulation: satisfies fire performance requirements in construction without halogens
• It releases phosphoric acid and inert gases under heat, interrupting combustion in both the condensed and gas phases.

Commercial specifications

• White powder in various particle size distributions
• Packaging typically 25 kg bags or bulk quantities