330g Medusa Waterproofer

330g Medusa Waterproofer -  (1 Sachet to 2 Cement)

About this product: medusa waterproofer is an admixture in white powder form. Its addition to a concrete or mortar mix will improve the water repellence of the finished work

Features and Benefits:

• Provides increased water repellence
• Assists in providing even suction in undercoats
• Reduces water permeability
• Reduces the risk of surface crazing of in-situ and precast concrete
• Reduces surface water absorption

Constraints: medusa waterproofer is not suitable for use with high alumina or calcium aluminate cements

Preparation: Preparation and Application should be in accordance with the specification and relevant British Standards for the work to be carried out.

Mixing:

• Mix medusa waterproofer at a rate of one 330g sachet per 50kg (2 x 25kg bags) of cement.
• Mix the powder with the cement and aggregates in the dry state. Thorough mixing is essential, but air entrainment and possible loss of strength may occur if machine mixing of concrete is unduly prolonged once the water is added. Only clean, sharp, well graded sand should be used for rendering and clean, well graded aggregates for concrete.
• In all cases the strength of the mix should be in accordance with the specification and British Standards applicable to the particular work to be carried out.
• The addition of medusa waterproofer will not compensate for incorrectly proportioned mixes or for poorly compacted concrete.
• Mixes containing medusa waterproofer are water repellent.

Coverage / Yield: One 330g sachet is sufficient for a mix containing 50kg (2 x 25kg sacks) cement.