Firestone Water Block Seal is designed to provide a watertight seal when used in compression as specified in
drains, scuppers, wall terminations and other system details.
Surfaces on which Water Block Seal is to be applied must be clean, dry and free from loose parts of concrete,
stone, mortar, foreign materials, and other contaminants. Restore to room temperature prior to use, if exposed
to lower temperatures (< 15°C) for a prolonged period
sealant is applied with a mastic gun at the specified location and put under a continuous compression.
Covers approx 3lm