Dowsil 781 Acetoxy Silicone Sealant
- Suitable For: a range of non-porous surfaces including glass, aluminium, painted surfaces and composite boards.
- Area of use: INT
- Application Method: silicone gun
- Volume: 310ml
- Container Type: cartridge
- Type: sealant
- Colour: 6 colours
- Brand: Dowsil
- Manufactuer: Dowsil
Dowsil 781 Acetoxy Silicone Sealant is a one-part, silicone sealant which has good adhesion to a range of non-porous surfaces including glass, aluminium, painted surfaces and composite boards. It offers excellent resistance to ageing, shrinkage, cracking and discolouring. This is also approved in certain countries for use in contact with potable water once cured.
TYPICAL PROPERTIES FOR DOWSIL 781
These values are not intended for use in preparing specifications. Please contact your local Dowsil sales office or your Global Dowsil Connection before writing specifications on this product
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For any further information you may need on Dowsil products, please visit the Geocel website here.
This item is currently experiencing a 4-5 week lead time
Dowsil 781 offers good adhesion to a range of non-porous surfaces including glass, aluminium, painted surfaces and composite boards.
HOW TO USE
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 by wiping with a suitable solvent such as DOWSIL R40 Universal Cleaner on a clean oil- and lint-free cloth before application of sealant.
Note: When using any solvent, always provide adequate ventilation. Avoid heat, sparks and open flames. Use solvent resistant gloves. Observe and follow all precautions listed on solvent container label.
MASKING
Areas adjacent to the joints should be masked with tape to prevent contamination of the substrates and to ensure a neat sealant line. Masking tape should be removed immediately after tooling.
PRIMING
All joint surfaces other than glass and glazed ceramics should be primed. Furthermore, for specific advice, please refer to the DOWSIL ® Primers’ Guide or contact one of Dowsil’s Regional Service Centre for technical assistance.
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| Elementlength | |||||||
| up to 1,5 m |
up to 2,5 m |
up to 3,5 m |
up to 4,5 m |
up to 2,5 m |
up to 3,5 m |
up to 4,5 m |
|
| Type of window frame material |
Minimum witdth of joints for a butled mounting b in mm |
Minimum witdth of joints for a inner mounting b in mm |
|||||
| Hard PVC (white) | 10 | 15 | 20 | 25 | 10 | 10 | 15 |
| Hard PVC and PMMA (dark) (colour extruded) |
15 | 20 | 25 | 30 | 10 | 15 | 20 |
| Hard PUR integral foam | 10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Wood-aluminium-window | 10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Aluminium-plastic sandwich frame (bright) |
10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Aluminium-plastic sandwich frame (dark) |
10 | 15 | 20 | 25 | 10 | 10 | 15 |
| Wooden window frame | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
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