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Product identity

Chemical name Melamine polyphosphate
CAS 218768-84-4

Regulatory status

H phrases according to GHS Labelling none
REACH Regsitered 2010

Suppliers / trade names (pinfa member companies)

Supplier Trade name
ThorAflammit® PMN 200
BudenheimBudit@ 341

Application groups

Group Substrate Application
Solid ThermoplasticsPETApplicable
Polyamide (PA)Applicable
Polypropylene (PP)Applicable
Textiles/Paints/AdhesivesIntumescent CoatingsApplicable
ThermosetsEpoxy ResinsApplicable
Phenolic ResinsApplicable
Unsaturated polyestersApplicable
Acrylic resinsApplicable


Melapur 200 is a melamine polyphosphate based halogen free flame retardant. It decomposes endothermically above 350ºC, acting as a heat sink to cool the polymer. The released phosphoric acid further reacts with the polymer to form a char and inhibit the release of free radical gasses into the oxygen phase. Simultaneously, nitrogen species released from the degradation of melamine intumesces the char to further protect the polymer. Melamine polyphosphate based halogen free flame retardants are primarily used for glass fiber reinforced polyamide and polyester (e.g. PBT) and can be used as a synergist in many other applications and polymers.

References  – BASF, Technical Information TI/EVF 1037

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