Skip to product information
1 of 1

Features & Benefits

• 1 component cementitous membrane
• Handles positive water pressure of up to 6 bar
• Handles negative water pressure of up to 1.5 bar
• No primer required, bonds to dampened surfaces
• Approved for potable water applications to international standards
• Resistant to aggressive effects on concrete, such as salts and carbonation
• Can be applied on vertical and horizontal surfaces, excellent non-sag properties
• Crack bridging properties up to 1mm
• Can be applied by brush, roller, sprayer or trowel
• Compatible bonding properties for concrete toppings, screeds, masonry renders and tile adhesives
• Suitable for internal, underground, immersed and external surfaces
• Cost effective and ease of quality control as a 1 component product with addition of site water only, eliminating dilution risks


• Internal and external walls of basements, lift pits and cellar walls
• Potable water tanks
• Water features, swimming pools and fish ponds
• Roof areas (that will be covered with other surface toppings)
• Podiums, terraces, balconies and deck areas
• Internal wet areas
• Planter boxes, garden beds and retaining walls

Aquaproof 121

Aquaproof 121

Unique One Component Cementitious Waterproof Membrane.

Aquaproof 121 is a one component waterproof membrane that is suitable for a wide range of positive and negative waterproofing applications.

- Water Features, Pools & Ponds

- Potable Water Tanks

- Internal / External Walls

- Planter Boxes, Lift Pits & Retaining Walls

Based on advanced cross linking polymer technology, Aquaproof 121 is a standalone flexible polymer cementitous membrane that does not require the addition of any liquid additive, requiring only water added to powder to form a high quality liquid membrane slurry system. Ideally suited over concrete, masonry and mineral substrates. The cured film provides a water tight membrane that is permeable to vapour diffusion and offers excellent resistance to frost and ageing, as well as outstanding adhesion properties.


Need Help? Lets talk.


Safety Data Sheet View full details