Selleys Sealant Butyl Mastic Off-White 400G

Selleys Sealant Butyl Mastic Off-White 400G

Selleys Sealant Butyl Mastic Off-White 400G

Regular price $29.99
BMW 400G | 9300697101495

Selleys Butyl Mastic is a synthetic resin, butyl rubber based mastic which forms a smooth tough skin, but remains permanently plastic underneath. It is available Off White.


  • Remains permanently plastic under a smooth tough skin
  • Versatile sealant with excellent adhesion to a variety of substrates without the necessity to prime
  • Will not bleed into porous surfaces
  • Non-sag in joints up to 12mm vertical joint
  • Wide service temperature: –35° to +65°C
  • Excellent weathering characteristics
  • Does not corrode metals
  • Good water resistance
  • Life expectancy is approximately 5 years in a thick joint. It is recommended to use silicone sealant in thinner joints
  • Easy smoothing and clean-up with mineral turps or white spirits

Where can this product be used?

  • Sealing aluminium windows to masonry.
  • Sealing joints between pre-cast concrete panels or porcelain enamelled panels.
  • Sealing edges of all types of wallboards or wherever a permanent waterproof seal is required.
  • Sealing lap joints between metal applications with the inclusion of fasteners.
  • Ideal for dust proofing cars, trucks, caravans, boats, etc. and is suitable for sealing cracks and gaps around brickwork, roofing and cladding. 

What Our Customers Say

Google Reviews

A lovely experience.
Staff put themselves out to assist.
They listened to my needs and assisted me.
I couldn't praise them enough.
Keep the good work going!

Harley C.

A big shout-out to the team at Sunlite Mitre 10 Newtown, especially Liam.
Friendly, helpful, personable customer service...reminded me of the type of hardware store I used to go to as a kid in NZ.
These guys will be able to find a solution to all your hardware needs.

David S

Bought some painting from the store! The service here is way much more helpful and friendly than Bunnings! Never paint my wall before, the staff helped me with a kit and basically taught me step by step! The store is small but has everything that I need! Highly recommended

Olym L

Very friendly and helpful staff. Great range of items for the odd jobs around the house. Highly recommended

Ian J
Award Winning Service
Fast Delivery Australia Wide
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