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Hexafluorosilicic Acid, Hydrofluosilic Acid
Fluorosilicic acid is a colourless, fuming liquid that is highly corrosive. Fluorosilicic acid is a strong acid and is used in a number of industrial and manufacturing applications, including the production of aluminum, glass and ceramics, as well as in the purification of drinking water. It is also added to drinking water as a source of fluoride to help prevent tooth decay.
Molecular formula
H2SiF6
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Fibre-rubber plates
It is not recommended nope
It is not recommended nope
It is not recommended nope
Not known Not known
It is not recommended nope
Teflon plates
Not known Not known
Not known Not known
Not known Not known
Not known Not known
Graphite plates
Excellent suitable
Excellent suitable
Excellent suitable
Excellent suitable
Excellent suitable
Rubber plates
Excellent suitable
Good good
Excellent suitable
Good good
Good good
Not known Not known
It is not recommended nope
Excellent suitable
Excellent suitable
All technical data is based on our measurements and experience and is for guidance only. The parameters listed interact if they occur together and must be consulted in limiting cases. The manufacturer is not liable for misinterpretation of the given data and incorrect application of seals
Reinforced with bonded smooth Ni foil 0.013 mm thick (material: 2.4066). For low and medium pressures.
Reinforced with 0.1 mm thick perforated reed plate (material: AISI 316). For medium and higher pressures.
Reinforced with 0,05 mm thick stainless steel foil (material: AISI 316). For low and medium pressures.
Reinforced with expanded stainless steel sheet 0.1 mm thick (material: AISI 316L, 700 g/m²). Ideal seal for large pressure changes.
Multilayered sealing material made of expanded graphite reinforced with a larger number of inserts without the use of adhesives. Suitable for higher pressures and temperatures.
Rubber resistant to atmospheric influences, UV and ozone radiation. Excellent temperature resistance.
FKM has excellent chemical and heat resistance. It is used in mineral oil and grease based applications.
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