CH 7

Color: Colorless to yellowish
Type: Adhesive

CH 7

Color: Colorless to yellowish
Type: Adhesive

Chemitac 7 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 7 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 99ºGL
Bonding Temperature Range: 150ºC - 200ºC
Shelf life: 2 years (closed can below 25ºC)
Elastomers: Ethylene Propylene Rubber Diene (EPDM), Hydrogenated Nitrile Rubber (HNBR), Silicone Rubber (VMQ)

CHEMICAL COMPOSITION

Resins and catalysts in solvents.

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