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Polymer Additives

BriteFlex® MR4

Technical DataSheet | Supplied by Arctic Minerals

BriteFlex® MR4 is a muscovite mica by Arctic Minerals. It maintains a high aspect ratio of potassium aluminium silicate which exhibits superior brightness and purity. It is an excellent extender for glass fiber. It improves flexural modulus, tensile strength and dimensional stability. BriteFlex® MR4 shows good compatibility with thermoplastics, thermosets and rubber mold release. Recommended for rubber gaskets and is FDA-approved.

BriteFlex® MR4 Product details

Product Type
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Chemical Composition
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CAS Number
12001-26-2
Product Status
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Applications/ Recommended for
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Food contact approval
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BriteFlex® MR4 Properties

Property

Value & Unit
Test Condition
Test Method
Median particle size, d50
xx microns
Aspect ratio
xxxxxxx
True density
xxxx g/cm3
Melting point
xxxx °C
Moisture at 100°C
xxxxx %
Loss on ignition at 1000°C
xxxxx
Mohs hardness
xxx
Bulk density
xxxx g/cm3
pH
xxx
Last edited May 9, 2018
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