Flame Retardants - Intumescent Systems





Key Products

Product

Application

AFLAMMIT® PCI 202

Ammonium Polyphosphate (APP, phase II) (31%P, 14%N)

  • Versatile building block for many applications
  • High phosphorus and nitrogen content
  • Key component ("acid donor") for intumescent systems
AFLAMMIT® PMN 500

High quality melamine powder

  • Main blowing agent used in intumescent formulations

Alternative Products

Product

Application

AFLAMMIT® PCI 599

Expandable graphite

  • Self-intumescing compound
  • Powder-like black flakes
  • Can be effectively combined with AFLAMMIT® PCI 202 or PCO 123/234
AFLAMMIT® PMN 185

Melamine Orthophosphate
(14.5%P, 37%N)

  • Both an acid donor and blowing agent
  • Relatively low temperature of decomposition (200°C) should
    be borne in mind for sequencing the intumescent reactions
AFLAMMIT® PMN 200

Melamine Polyphosphate
(13%P,43%N)

  • Same function as AFLAMMIT® PMN 185/370
  • Far lower water solubility
  • Higher stability (>300°C)
AFLAMMIT® PMN 370

Melamine Pyrophosphate
(14.5%P, 36%N)

  • Same function and benefits as AFLAMMIT® PMN 185
  • Higher temperature of decomposition (approx. 250°C)

Optional Additives

Product

Application

AFLAMMIT® PCI 511

Zinc Borate (2.ZnO*3.B2O3*3.5.H2O)

  • Char promoter
  • Catalyses the formation of a glassy layer
AFLAMMIT® PCI 255 (test product)

Inorganic Phosphate

  • Chemical binder
  • Catalyses the formation of a ceramic-like structure at elevated temperatures
AFLAMMIT® PMN 544

Modified Melamine Borate

  • Char promoter
  • Catalyses the formation of a glassy layer

Intumescent systems are alternatives to inorganic materials in final applications with fire resistance time (FRT) requirements, such as R60' or REI 30'.


Main applications are intumescent coatings (IC) for the protection of steel structures, but these special paints can also be applied to other substrates such as concrete, wood, cables etc. either to reduce their flammability ('reaction-to-fire') and/or to maintain their function in the event of fully developed fire ('fire resistance').


Other applications also include fire resistant sealants where the gap-filling material is also expected to restore the fire resistance properties of the treated area.


Acti-Chem Flame Retardants


Textiles - Coating Textiles - Non Durable Textiles - Semi Durable Textiles - Durable Plastics - Films, Tapes and Thin walled applications Plastics - Thermoplastics Plastics - Thermosets Intumescent Systems Wood Leather Specialities

Product information is for general guidance only - please contact your local Acti-Chem representative for Product Data Sheets and technical advice. A wide range of other products is available for specialised applications and to meet local conditions and regulations.