Selleys 635
Selleys 635 is a premium low modulus, multipurpose elastic joint sealant powered by advanced hybrid technology, suitable for a variety of sealing applications.
Selleys 630 Low Modulus Multipurpose Elastic Joint Sealant
Key Features
- +/- 35% Joint Movement
- Adhesion to wet surfaces^
- UV & weather resistant
- Paintable
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- Overview
- Instructions
- Specifications
Selleys 630 is a premium low modulus, multipurpose elastic joint sealant powered by advanced hybrid technology, suitable for a variety of sealing applications. Offering excellent resistance against UV and weathering, a high joint movement capability of +/-35%, 630 can withstand both indoor and outdoor applications. It offers very broad and primerless adhesion to most building materials*. It is also a low voc** product, free from harmful chemicals like solvents and isocyanates. Once cured it forms a strong, elastic waterproof^ seal that is paintable with water-based paints.
**Meets GBCA limits for general purpose and architectural sealants.
*Not suitable for PE,PP,PTFE
^Not for permanent water immersion.
Where can this product be used?
- Construction joint sealant applications
- Perimeter seals around doors, windows and facades
- General purpose interior joint sealant applications
- Suitable for humid conditions
- Sealing of fillet joints (wall & floor movement junctions)
- Precast wall panel joints
- Expansion joints
- Control joints
- Connection joints
- Window/door frame perimeter sealing
- Sealing of wall panel systems
Note: It is not suitable for structural glazing.
What materials is this product suitable for?
- Anodised aluminium
- Precast concrete panels
- Block work & Bricks
- Plasterboard & Blue Board
- Concrete
- Masonry
- Porcelain
- Stainless steel
- Glass
- Wood
- Ceramics
- PVC
- Perspex
- Marble
- Fibre cement board
- Zinc alum
- Copper
- and most other building materials.
*Not suitable for PE, PP, PTFE.
How to Use
- Ensure all surfaces are clean and dry, free of wax, grease, dust and any other foreign materials. Metal substrates should be degreased first.
- Cut nozzle at a sharp angle slightly wider than the desired bead or joint width. If being installed as a joint sealant, always use a suitable backing rod to ensure the correct depth is achieved.
- Extrude sealant with a gun and tool with a round spatula within 10 minutes to spread the sealant against the joint surfaces.
- Uncured sealant can be removed with mineral turps.
Handy tips
- Can be applied to clean, wet non-porous surfaces e.g. metals, glass, glazed tiles – not wet porous surfaces e.g. concrete, timber. Remove as much water as possible, preferably with acetone. Keep nozzle close to surface so sealant contacts surface immediately. Flatten immediately into joints.
- Adhesion improves on drying.
- Skins in 20 minutes, maximum toughness achieved over several days.
- Paintable with water-based paints after product skins. Pre-test paint over a small section of sealant before completing job. Some paints may require sealant to be lightly sanded before painting.
- Sandable when fully cured.
- Store in cool dry conditions, below 30°C
Clean Up
- Uncured product may be removed with mineral turps.
Size |
300ml |
Colours |
Grey |
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White |
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Black |
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Technology |
Advanced Hybrid Technology |
Use |
Interior |
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Exterior |
Useful downloads
How to Guides
4 Top Tips if a Storm Is Heading Your Way
Get ready for a storm with Selleys. Our guide has 4 top tips to help you prepare for severe weather and protect your home.
How To Use a Caulking Gun
Learn how to use a caulking gun for a professional finish with Selleys step-by-step guide. Get tips & tricks to make the most of your sealant.
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