Flame retardant fillers for the plastics and rubber processing industry
MARTINAL® special aluminium hydroxides, ground or finely
precipitated, can be used as fillers and flame retardants in
polymers, which are processed below 200°C. MAGNIFIN® , a high
purity magnesium hydroxide, is preferred as a flame-retardant
material where the processing temperatures exceed 200 ° C, e.g.
for thermoplastic materials and elastomers requiring high process
temperatures.
Martinswerk is the world's leading supplier of halogen-free
flame-retardant fillers and is the only supplier offering
aluminium hydroxide (MARTINAL® standard, ground, low-viscosity,
super-fine precipitates) and magnesium hydroxide (MAGNIFIN®
finely crystallized).
Advantages of MARTINAL® and MAGNIFIN®:
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filler and flame retardant in one |
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environmentally friendly |
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halogen-free |
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non-toxic |
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non-corrosive |
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reduced smoke density |
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non volatile |
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inert |
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no effects on pigmentation |
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recyclable |
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economical |
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Being chemically inert, MARTINAL® is also preferred for a whole range of applications not related to flame retardancy such as: fillers for toothpaste, powder coating and plastics reinforced with glass fibre.
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Special aluminium hydroxide (ATH) and magnesium hydroxide (MDH) products, known under the brand-name MARTINAL® and MAGNIFIN® , offer a broad range of halogen-free, non-toxic, environmentally friendly, flame retardant solutions for a wide variety of applications.


The flame retardant effect of MARTINAL® and MAGNIFIN® is based on the endothermic decomposition into aluminium oxide respectively magnesium oxide and water. Only non-toxic and non-corrosive decomposition products are formed.
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