Colourless special Adhesion Promoter for silicone- and MS-hybrid sealants, applicable on non-absorbent and absorbent substrates.
The surfaces must be completely clean, fat-free and dry. For that a specific cleaner according to the surface is recommended (Ethanol). Then the Adhesion Promoter V40 can be put on with a paintbrush in a thin shift. The open-time is at +20 °C at least 30 minutes. At latest 2 hours after putting on the Adhesion Promoter the application of the sealant or adhesive is to be done (at long waiting times the surface must be controlled again for cleanness).
Plastics, copolymers, thermo varnished- or powder-coated surfaces and plastic-plaster. We recommend pre-tests for difficult adhesions on plastics.
Odour: characteristically as solvent
Appearance: liquid, transparent
Density: 0.75 +/- 0.02 g/ml
Storage: dry and cool
Shelf life: 12 Months from production date in the unopened original packaging
Lower working temperature: + 5°C
Drying time at 20°C: at least 30 minutes, max. 2 hours