Mega Mastic

Our Price: £10.51

Our Price: £10.51

  • Excellent adhesion to almost any surface
  • Can be applied down to 0deg C (not over ice or frost)
  • Excellent UV resistance
  • Works in wet/dry and even under water
  • Excellent resistance to chemicals and salt water
  • Solvent Free
  • Odourless
  • No isocynates
  • Excellent Flexibility
  • Instant repairs
  • Does not shrink
  • Can be painted
  • Can be used internally and externally


Mega Mastic – The Roofer’s Best Mate

Mega Mastic is a high performance sealant and adhesive. It is specifically formulated with the roofing contractor in mind. Being able to bond almost any surface makes it must have for almost any repair. With Mega Mastic you can bond, seal or fill ; lead, slate, tile, and masonry. It also allows you to PVC-u, fibre glass, plastisol coated steel, polycarbonate sheet, polyester, aluminium, steel, zinc, copper, stainless steel, felt, asphalt, concrete and timber.

Mega Mastic can be used to seal onto wet surfaces, even underwater! With Mega Mastic you can stop a leak in almost any place, in almost any conditions and onto almost any surface.*

Gutters, valleys, roof sheets, slates, tiles, shingles, flat roofs, polycarbonate lights and sheets, metal copings/cappings etc, etc can easily be sealed and repaired.

Mega Mastic is manufactured in the UK and designed for UK weather.

*Due to the many variations in materials/ surfaces and existing surface conditions, which may be contaminated by factors which are unknown to us, we recommend that standard preparation including cleaning and also priming if surfaces are in poor condition. i.e. friable, very porous or heavily oxidised be carried out prior to application. Porous concrete, porous masonry and some timber, particularly oily hardwood varieties may require a primer in some cases. Low surface energy materials such as Polypropylene, Polyethylene and PTFE cannot be adhered/bonded/sealed by Mega Mastic.

All information is believed to be reliable, including video and illustrations. Bullet Roof make no warranties of the accuracy of the completeness of the information, and disclaims any liability regarding its use. Bullet Roof only obligation is in the standard terms and conditions of sale and in no case will Bullet Roof be liable for any incidental, indirect or consequential damages arising from the sale of our products.


Additional information

Weight0.2 kg


2-3 Working Days.

Next working day if orders are before 2pm.

Charges based on delivery to mainland UK, excluding the Scottish Highlands & the Islands where additional shipping charges will apply. If your delivery address is in the Scottish Highlands and Islands, a member of our team will contact you prior to processing your order should an additional delivery charge need to be applied.

Data Sheets

Technical data sheet

Materials Safety Data Sheet



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