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Lead Pointing Sealant

BLM Lead Pointing Sealant is specifically designed for pointing joints between Lead and masonry or brickwork; a low modular, non-corrosive, neutral cure silicone sealant which can be applied easily using a mastic gun.
Lead Pointing Sealant British Lead
BLM Lead Pointing Sealant provides a simple solution to this problem; a low modular, non-corrosive, neutral cure silicone sealant which can be applied easily using a mastic gun.
The most common reason for water penetration at an abutment is failure of the mortar used in pointing the joint between the Lead and brickwork or masonry. This is due to the inability of the mortar to expand and contract at the same rate as the Lead during temperature changes. In extreme cases, the pointing will crack and allow water to penetrate the joint and subsequently cause dampness within the building fabric.
  • Ensure the joint is dry and free from debris and dust before applying
  • The nozzle on the sealant tube can be cut to suit the width of the joint to be filled
  • Minimum depth of sealant not less than 25mm
  • For chase heights of 6mm - 18mm use BLM Hall Clips to secure the Lead flashings in place
  • For chase heights over 18mm use Hall Clip Plus or turn up the Lead flashing at the back of the chase and screw to the wall using stainless steel screws
  • Flashing lengths should not exceed 1.5 metres
  • Ensures long-term protection against water penetration
  • Coloured grey to blend in with the Lead work
  • Unique formula allows the Lead to expand and contract without cracking
  • Fast and easy to apply
  • Average tack free time is approximately 30 minutes
Packaging:
  • Available in 310ml tubes
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