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Silicon Mastic for Concrete Expansion Joints- Shrink Resistant

Mastic to seal expansion joints in imprinted or plain concrete (available in Translucent, Black or Brown - Translucent will visually darken over time)

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Visa Electron
Product Description

Silicone mastic sealant to fill expansion joints in imprinted concrete 

Mastic sealant available in Translucent, Black and Brown

Premium quality low modulus non corrosive silicone sealant that adheres to all concrete substrates. (average 7-10 linear metre coverage)

Primarily used on imprinted concrete driveways and patios to avoid expansion joints becoming clogged up and filled with muck.

Specifically designed to fill concrete expansion joints, tested to ISO11600 standards, easy application via mastic gun

Product FAQs

Q: I am looking at re-sealing my drive, I have a few hairline cracks would I be able to fill them in using the expansion sealant? Also when I re-fill my expansion joints the 3 colours you sell look odd with the slate grey colour that I will be purchasing from you.


A: we tend to not recommend trying to seal fine hairline cracks as any material tends to 'pop' out with the expansion and contraction of the concrete over time. Once sesled they tend to be a lot less visible anyway, especially if using a colour tint with the sealer.

Response from Nick

Q: I am about to re seal my drive with your product. Do I apply the mastic to the expansion joints before or after sealing? Thanks

Frankie Wallace

A: You apply the mastic after applying the imprinted concrete sealer

Response from Ricky

Q: I have garden concrete panel fencing, it is now showing wear and tear and bare in places where it has flaked off and you can see the metal base. Can you recommend a product for repair and then sealing it. Thankyou

Angela Allen

A: Would be best to get in touch with our technical team online or over the phone who will best be able to advise you.

Response from Christie
Ask Us A Question
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We provide a national delivery service for our block paving sealer, pattern imprinted concrete sealer, roof coatings and tarmac restorer on a standard 2 - 4 working day basis. Dependent on weight, this is normally done by pallet or parcel carrier.

If you need products delivered quicker, for a small additional charge, orders placed before 1.30pm can be delivered within 1 - 2 working days to most parts of the UK, although this is dependent on the courier service in your area and the product/s ordered. If you require this service, please check on area availability by calling 01268 722500.

Our commitment is to supply all orders as placed and we offer a comprehensive guarantee of quality. Providing a reliable delivery service to all our customers is most important to us and this is backed up by the many satisfied customer testimonials we have received over the years.

If you need an order delivered to a different address, left somewhere at your property without a signature or left with a neighbour, just let us know.

We also try to maintain 100% stocking levels of our products at all times, so an immediate despatch is virtually guaranteed.

Our product returns policy can be viewed by visiting our Terms and Conditions section.

*Free delivery on orders over £75 are subject to the delivery address location.

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