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Trade Prices. Maximum Choice.
Bond It Build-Mate Building Mastic - Box of 12
Bond It Build-Mate Building Mastic - Box of 12
Bond It Build-Mate Building Mastic - Box of 12

Bond It Build-Mate Building Mastic - Box of 12

Shop All Bond It
SKU BDOBBR-BON
£31.95 - £31.95
£31.95
£31.95 - £31.95
£31.95
Colour: Brown
Mix & Match multibuy — buy any 2 or more and save 5% MULTIBUY — Mix & match, buy any 2+ & save 5% Combine any products in our 5% Mix & Match range — discount applied automatically in your basket. No code needed.
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Click & Collect — our Northampton store Collect from our Northampton store · FREE
Home Delivery FREE over £75
Shipping information


We work hard to get your order out quickly and securely.

  • Fast Dispatch – Orders are processed promptly once placed.
  • Trusted Couriers – We use reliable delivery partners.
  • Clear Costs – Shipping is calculated at checkout, based on size and weight.
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Returns & warranty
  • 28 Days to Return – If it’s not right, just bring it back in its original condition.
  • Quick Refunds – Once we’ve checked your return, we’ll refund you promptly.
  • Clear & Fair – Some items (like cut-to-size or opened packaging) can’t be returned, but we’ll always let you know upfront.

Build-Mate Building Mastic. Sold as a full box of 12 at trade prices, direct from a genuine Bond It stockist.

Can be used to seal and bed window and door frames manufactured from metal or wood. Suitable for the maintenance of low-rise building joints, seals and flashings, as well as pointing around precast building materials. Downloads Material Safety Data Sheet Technical Data Sheet Related products Ulti-Mate LMN Builders Silicone Sealant A Low Modulus Neutral cure (LMN) builders silicone sealant. Suitable for applications where joint movement does not exceed 30% and where the long term durability of silicone is required. View product

Key features

  • Sag resistance
  • Low toxicity
  • Self repairing skin
  • If the skin ruptures the exposed mastic will reseal
  • Does not harden under skin; remains flexible
  • Over paintable
  • Adheres to most common building materials
  • External use
  • Can be used to seal and bed window and door frames manufactured from metal or wood.

What's in this listing

Option Box qty Bond It code
Brown 12 BDOBBR
Stone 12 BDOBST
White 12 BDOBWH

Downloads

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Why pay more? We keep our prices rock-bottom so whether you’re a trade professional or DIYer, you always get the best deal.

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We’re Northampton’s trusted family-run store, supporting local people with great products and honest service.

🚚 Easy Pickup or Local Delivery

Order online and collect in-store, or get heavy items like blocks and cement delivered straight to your site.

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Our staff know their stuff — whether it’s building materials, DIY or garden, we’re here to help you get the job done.

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Bond It Build-Mate Building...
£31.95