Flame Retardants

Composition

Ankerpoort provides a range of flame retardants, each with unique actions based on various mineral raw materials

Portaflame^®

Properties

• has flame-retardant properties as a result of the endothermic decomposition and release of water vapour on heating of the mineral on the one hand and the formation of a protective layer during the oxidation process on the other.
• endothermic decomposition at > 340 ºc
• natural product
• has smoke suppressant properties
• high boron content

Applications

Construction: bituminous roofing material: only as flame retardant or in combination with gibbsite

Plastics: works synergetically with other inorganic flame retardants. Strong tendency to form a protective layer during the oxidation process particularly in OH-bearing polymers; flame retardant in polyolefins (PE, PP), thermoplastic rubbers Ethylene Vinyl Acetate (EVA), Ethylene Propylene Diene Monomer (EPDM), calcium borate and rubber applications in mining

Portaflame^® SG/G

Properties

• has flame-retardant properties as a result of the endothermic decomposition and release of water vapour on heating of the mineral on the one hand and the formation of a protective layer during the oxidation process on the other.
• endothermic decomposition at > 200 ºc
• chemically inert
• low specific gravity
• Portaflame SG: high whiteness, high purity
• Portaflame G: cream-coloured (suitable for less critical applications which do not require such high whiteness and purity)

Applications

Construction: flame retardant in bituminous roofing material and mineral building boards

Plastics: flame retardant in polymer floor and wall coverings, cable filler, polyurethane (PUR) foam and carpet backings; flame retardant in polyester (sheet and bulk moulding compounds - SMC, BMC) and moulding resins (epoxy, PUR)

Securoc^®

Properties

• has flame-retardant properties as a result of the endothermic decomposition and release of water vapour on heating of the mineral on the one hand and the formation of a protective layer during the oxidation process on the other
• endothermic decomposition at > 300 ºc
• natural product
• has smoke suppressant properties

Applications

Plastics: flame retardant in thermoplastics (PP, PA), TP elastomers and rubbers, cable and wire insulation, electrical components, cable ducting and roof and floor coverings

Securoc^® C

Properties

• high whiteness
• high purity
• platelet structure
• very fine
• endothermic decomposition at > 250 ºC (flame retardant properties)

Applications

Plastics: flame retardant for PVC and chloroprene rubber particularly in cable compounds for wire and sheath insulation; effective smoke suppression in polymers.