Flame Retardants

Flame Retardants

Our unique range of mineral flame retardants delivers real benefits across a variety of applications including wire and cable, roofing membranes, insulating foam, moulding compounds and carpet backing. Whether you’re looking for effective halogen free flame retardants, different decomposition temperatures, optimised packing formulations or effective smoke suppressant synergists, we offer choice and flexibility through a range of leading product brands.

Minerals we supply for flame retardant applications include:

  • ATH
  • Magnesium hydroxide
  • Hydrated magnesium calcium carbonate
  • Calcium borate

We offer an extensive range of products for flame retardant applications, including:

Portaflame CA

The flame-retarding action of Portaflame CA, a micronized halogen-free flame retardant (HFFR) filler, is based mainly upon its high char forming and glazing/ fluxing ability in combination with endothermic decomposition (heat-sink effect). Portaflame CA is a viable alternative for synthetic Zinc borate.

  • Effective synergist to ATH and magnesium hydroxide
  • Smoke suppressant
  • Endothermic decomposition at > 340ºC
  • Reduces the peak Rate of Heat Release

Portaflame SG

Produced from high quality ATH, Portaflame SG provides effective flame retardancy in a broad range of applications, such as:

  • Wire and cable compounds
  • Resin potting compounds
  • Carpet backing
  • Pultrusion
  • Coatings
  • Sealants
  • Adhesives

A broad range of particle sizes has been engineered for optimal packing in SMC and BMC and polymer concrete. Newly developed ultra-fine grades provide an effective alternative in foam and in optimized packing formulations. High brightness and consistent particle sizes provide a reliable qualitative end product.

  • Flame-retardant up to 200ºC
  • Chemically inert
  • Low specific gravity
  • High whiteness and purity

Securoc C

Securoc C is very fine, platy-shaped filler with flame and smoke retardant properties. In addition, this product works as an effective acid scavenger in halogen containing polymers. Securoc C is used in applications where processing temperatures exceed 200ºC, making ATH unsuitable. Its main applications are in PVC and chloroprene wire and cable compounds and PVC/NBR foams.

  • Very fine particle size
  • Endothermic decomposition at 240°C
  • Smoke suppressant

Securoc B

Securoc B products are based on naturally occurring magnesium hydroxide and are developed as functional halogen-free flame retardant (HFFR) fillers for plastics and rubbers. These flame retardants are used in applications where processing temperatures exceed 200ºC, making ATH unsuitable. The main uses are in wire and cable compounds, polyolefin roofing membranes and electrical appliances based on thermoset compounds.

  • Endothermic decomposition at > 300ºC
  • Strong smoke suppressing ability
  • Low specific gravity

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