Silicone Primer (Dowsil 1200 OS)
- Improves adhesion of silicone
- Low VOC
- Contents: 500 ml
Dowsil 1200 OS Primer is used to improve adhesion and accelerate adhesion build-up of silicone elastomers to various substrates.This moisture-curing primer is specially formulated as a diluted solution of reactive materials in low-viscosity siloxane, which ensures optimum adhesion and durable results on various surfaces. Dowsil is suitable, among other things, for bonding silicones to metals. Always perform a test before using the primer.
Features
- Improves adhesion of silicone elastomers and foams to many substrates
- Provides more uniform and stronger bonds.
- Low VOC content of 76 g/l.
- Formulated for low toxicity.
- Resistant to ozone, ultra-violet radiation and temperature extremes
- Suitable for weather sealing and structural glazing.
Instructions for use
Met veel oppervlakken worden aanzienlijk sterkere en gelijkmatigere verbindingen verkregen door ze voor te bereiden met een primer voordat de siliconenkit wordt aangebracht. Voor het beste resultaat moeten de volgende stappen worden gevolgd op alle oppervlakken, behalve siliconenrubber.
-
If necessary, thoroughly clean and degrease the surface with 2 cloths and a suitable solvent. Leave the surface to dry.
-
Apply a thin layer of DOWSIL 1200 OS Primer with a clean white cloth or brush. In most cases, a thin layer of primer will provide the best adhesion. If you notice a white chalky residue after a few minutes of drying, wipe it off with a clean cloth.
-
Under normal temperature and humidity conditions (room temperature, 50% RH), allow the primer to air dry for 15 to 90 minutes. Because the primer cures on contact with moisture from the air, low humidity requires a longer drying time. The optimal drying time for a particular area should be determined prior to use. A primer that has been left to hard cure will no longer increase adhesion. Drying longer than 6 hours at normal temperature and humidity should generally be avoided.
-
Apply silicone sealant.
Product properties
Contents: 500 ml
Colour: transparent
Viscosity: 1 mPas.s (at 23°C)
Flash point: 27°C
VOC: 76 g/l
Specific gravity: 0.84 (at 23°C)
Shelf life: 18 months (storage below 25°C in unopened packaging)
We have a number of recommendations for working safely with polymers. At Polyestershoppen you will not only find the polymers themselves, but you can also purchase all the protective equipment you need from us. If you have any doubts or questions, please contact our customer service. We can give you advice on how to work safely with polymers.
