Mastic asphalt is a mix of bitumen and limestone often containing aggregate. Mixed hot mastic asphalt is self levelling and produces a totally impermeable waterproof and hardwearing surface to roofs, bridge decks, dams, balconies, car parks and service decks. Mastic Asphalt is a diverse product that has been around for hundreds of years and having stood the test of time continues to improve with modern technology. It provides a very long durable life expectancy and is consequently a cost effective solution to waterproofing, tanking and roofing situations.


Polymer Modified Mastic Asphalt is a comparatively recent development using advanced polymer technology to give the ideal combination of long term durability, increased fatigue resistance, improved temperature stability and ease of installation and can be applied to form a continuous waterproof covering over flat, sloped or curved surfaces. It can be worked round pipes, roof lights and other projections to provide a completely seam free membrane

Polymer Modified Mastic Asphalt is installed by trained operatives who have undertaken the mastic asphalt industry’s training programme. Polymer Modified Mastic Asphalt can only be installed by listed contractors and offers comprehensive guarantees on both the labour and materials.

M J Asphalt are approved installers for manufacturers of Polymer Modified Mastic Asphalt and are members of the Mastic Asphalt Council