• Resistant to 9.5 ATM in both negative and positive pressure
• No excavation or demolition if applied indoors
• It can be used as a water barrier onto underground walls, in combination with Diasen’s Dehumidifying System
• Excellent waterproofing, consolidating and filling properties
• For use over many substrates
• Creates a vapour barrier on concrete floors
• Can be coated by plasters, smoothers, paints, tiles, coatings, etc.
• Solvent-free product

What is WATstop used for?
It's a liquid waterproofing membrane for wet areas like showers, bathrooms, basements, and balconies. It creates a seamless, 100% waterproof barrier — no sheet membranes needed.

Can it be applied over tile?
Yes — WATstop bonds well to secure, clean tile. Lightly sand the surface, clean well, and apply two coats. if adhesion is a concern use Grip Primer after cleaning surface.

Do I need joint tape in corners?
Use Safety Joint Tape in corners and seams to reinforce high-movement areas or areas with standing water and prevent cracking.

How many coats should I apply?
Two coats — with 24 hours between coats.

Can I use it on floors?
Yes — WATstop is suitable for floors in bathrooms, basements, and wet areas.

Is it safe for indoor use?
Yes — WATstop is solvent-free and low-VOC, making it safe for homes and occupied spaces.

Can I tile over it?
Yes — once fully cured, you can apply Plaster paint or tile, or use other finishes.

As vapour barrier:

Package: 5 kg (13 lbs) or 10 kg (22 lbs)

Coverage: 1 kg/m2 (0.2 lbs/ft²)

Per Package:

5 kg: 5 m² (55 ft²)

10 kg: 10 m² (110 ft²)

As waterproofing in counterthrust:

Package: 5 kg (13 lbs) or 10 kg (22 lbs)

Coverage: 2 kg/m² (0.4 lbs/ft²)

Per Package:

5 kg: 2.5 m² (27.5 ft²)

10 kg: 5 m² (55 ft²)

Suitable for all substrates including areas with positive/negative thrust such as walls against the ground, underground rooms, lift shafts, garages, basements, cisterns tunnels, swimming pools or tanks