Stormdry Repointing Additive No.2

A flexible waterproofing admixture that is diluted with water. Can be added as a gauging solution to sand:cement repointing mixtures. Suitable for use where flood protection is required or where there is a high incidence of driving rain.

Appears as a white/ milky liquid. Should be applied into the raked-out joint using a suitable pointing iron or repointing gun.

Test work demonstrates that repointing with Stormdry Repointing Additive No.2 and applying Stormdry Masonry Protection Cream to a wall can greatly reduce the flow rate of water through it. At a flood water height of 0.6 m, the flow rate through a single skin Fletton brick wall is reduced from approximately 12.5 L/m² /min to less than 0.2 L/m² /min.

Benefits:

• Improves flood resistance.

• Significantly reduces the liquid water absorption of masonry.

• Easy to mix into the repointing mortar mixture.

• Functions with both cement- and lime-based mortars.