CH 7A

CH 7A

Chemitac 7A is a thermoreactive adhesive for bonding silicone and other peroxide-cured elastomers to rigid substrates. It can also be used as an adhesion promoter for surfaces which cannot be grit blasted, such as engineering ceramics, phosphatized, galvanized, chromatized and stainless steel. 

Chemitac 7A is a heavy metal free product. 

TYPICAL PROPERTIES

  • Non-volatile solids (2h @ 70ºC): 6 - 7%
  • Specific gravity at 25°C: 0,820 - 0,840 g/cm3
  • Viscosity Brookfield at 25°C: ≤ 5 cps - #2 spindle @ 30 rpm.
  • Viscosity Ford Cup # 4 at 25°C: 8 - 14 s.
  • Diluents: Methanol/ Ethanol 99º GL
  • Bonding Temperature Range: 150 - 200ºC
  • Shelf life: 2 years (unopened container below 25ºC)
  • Elastomers: Silicone Rubber (VMQ)

CHEMICAL COMPOSITION

Resins and catalysts in solvents.
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Thomas Stehr

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E-mail: t.stehr@chemitac.com

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Ihr Thomas Stehr – Dipl.-Ing. (FH) Maschinenbau – Vertrieb Europe