Bitumen Mastic Black
Ensure surface is clean, dry and free from oil, grease and dirt
Moss and lichen can be removed using Thompson’s Mould & Mildew Cleaner
Bolt heads on roof sheets should be wire brushed to remove rust before being sealed with Thompson’s General Purpose Bitumen Primer.
Porous surfaces should be primed with Thompson’s General Purpose Bitumen Primer in order to seal the surface. The Primer should be allowed to dry thoroughly before applying Thompson’s Bitumen Mastic.
Apply Thompson’s Bitumen Mastic by trowel or putty knife
Force material into cracks and joints, smoothing out on either side
Cracks or joints more than 3mm should be reinforced with glass fibre scrim and covered with a second application of mastic.
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We accept all the major credit/debit cards online. Please note we cannot take credit/debit card orders over the telephone due to security reasons.
Online customers can also pay by Paypal. Just look for the Paypal option during the check out phase. Please note that Paypal will not supply us with your telephone number which we may need to contact you regarding your order. Please remember to leave your telephone number in the notes section during checkout.
We also accept BACS payments or bank transfers, please contact 0191 5871708 for more information.
This product has not been reviewed yet.