Lead Sealant 285ml Tube

Lead Pointing Sealant

One of the most common causes of water penetration at abutments is the failure of traditional mortar used to point the joint between lead flashings and adjoining brickwork or masonry. Mortar cannot expand and contract at the same rate as lead during temperature changes, which often leads to cracking and eventual water ingress—causing damp issues within the building fabric.

Lead pointing sealant provides a reliable and modern alternative. This low modulus, non-corrosive, neutral cure silicone sealant is specifically formulated to move with the lead, maintaining a secure and weatherproof seal. It is easy to apply using a standard mastic gun, making it ideal for both professional and DIY use.

Key Features

• Long-term protection against water penetration
• Grey colour blends in with leadwork
• Flexible formula allows lead to expand and contract without cracking
• Quick and easy to apply with a mastic gun
• Average tack-free time: approximately 30 minutes