DOWSIL™ 781 Multi-use Acetoxy Silicone Sealant
DOWSIL™ 781 is a one part silicone which offers fast cure and excellent adhesion to most non-porous surfaces including aluminium, glass and painted surfaces.
Product info
Benefits
- Fast cure - tack free in 30 minutes
- Working time of 5-10 minutes
- Joint movement capability +/- 20%
- Conforms to ISO 11600-F&G-20LM
- Resistant to ozone, ultra-violet radiation and temperature extremes
- High strength
Substrate Type
- Aluminium
- Glass
- Toughened Glass
- Ceramic Tile
- Anodised Aluminium
- Formica
- Timber
- Painted Timber
Colours
Grey
Brown
Black
Aluminium
Clear
White
Technical Information
| Where to use | Interior/Exterior |
| Paintable | No |
| Skin Overtime | 2 hours |
| Time to cure | 24 hours |
| Time to cure disclaimer | Sealant cure rate is 3mm per 24 hours |
| Container Type | Cartridge |
| Shelf life | 2 years |
| Sizes | 310 ml |
| Application method | Sealant Gun and Cartridge |
Application
Surface Preparation
Ensure that surfaces to be sealed are clean, dry, sound and free from frost, release agents, old sealants and other contaminants which could impair adhesion. All surfaces should be cleaned and degreased by wiping with a suitable solvent such as DOWSIL™ R-40 Universal Cleaner on a clean oil and lint free cloth before application of sealant.
Application Instructions
Apply sealant to the desired area using a sealant gun. Once finished, the joint should be tooled within 5 minutes of application to ensure good adhesion. For an extensive list of application methods, please consult the Technical Data Sheet.
Clean up
Excess sealant may be cleaned off tools and non-porous surfaces whilst in an uncured state using DOWSIL™ R-40 Universal Cleaner. If sealant is misapplied to porous substrates, it should be left until it is just cured and then removed by peeling, cutting or other mechanical means. Care should be taken not to damage plastic or coated surfaces.
Supporting Documents
Quantity Estimator
Enter joint dimensions below to estimate number of cartridges required
You will require x cartridge