WATERSEAL

Waterproofing compound

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Hunter's comment

Waterproofing compound is the most modern waterproofing compound, used in the construction of all concrete structures which need to be waterproofed. Two percent (2%) of the compound by weight should be mixed with cement to obtain water repellent properties. It contains 1-kilo of Waterseal which is sufficient for one bag of cement.
Waterseal should first be added to the dry Portland cement, mixed thoroughly and passed through a fine sieve to ensure even distribution of waterseal throughout the cement.

WATERSEAL FOR BASE COATS FOR COLOURED RENDERINGS.
Waterseal is of particular value in producing water repellent coating on which to apply coloured renderings. The coating is made up of 3 parts of clean, sharp sand and to one part cement ( waterseal added)
Such backing which are non absorbent are essential to avoid considerable variation in the colour and texture of the finishing coat.

Link

Https://www.Lowes.com/waterproofers