Tec7 WP7-402 Stop Rising Damp

This wall injection cream is the effective solution against rising damp that forms a water-repellent, horizontal barrier in walls. Suitable for all types of brick, including hollow bricks. It can also be used as a joint seal. This Tec7 product can be used indoors and outdoors and is also BBRI AAA+ certified.

Benefits of Tec7 WP7-402 Stop Rising Damp

• Water-repellent barrier in walls.
• Simple application without waste, a gun or pressure. 
• Even for walls with 95% moisture content.
• Safe, solvent-free and odourless.
• BBRI AAA+ certified.

Applications 

• Invisible barrier for rising damp.
• Prevents salt deposits from groundwater.

Directions for use

• Remove skirting boards, cover plates from electrical outlets, and all plaster up to 25 cm above the visible moisture or salt efflorescence.
• Drill holes of 12 mm diameter every 10 cm. The drilling depth should be equal to the wall thickness minus 5 cm. For fastest effectiveness, drill in the lowest horizontal cement joint, above the ground surface outside. Inject double walls and walls thicker than 40 cm from the inside and outside at the same height. When treating very porous stone such as sandstone, ironstone or some types of limestone, it is best to inject directly into the stone. Follow the lowest joint in natural stone. In the presence of an old flood barrier, drill below its level. Drill several holes in a star formation in corners for complete impregnation.
• Remove all drilling dust from the holes.
• Screw the injection hose onto the sausage. Insert the hose to the back of the drilled holes and fill while slowly retracting the hose. Leave the last centimetre unfilled.
• Close the holes with Tec7 Filler.

After a few days to several weeks (depending on how dry the wall is) a +/- 10 cm thick water-repellent layer is formed over the entire width of the wall. Drying the wall will take longer, depending on the thickness of the wall, weather conditions and moisture content. Monitor the progress if necessary with a moisture meter.

If the walls do not dry, or stains appear at normal humidity, there is a heavy salt load. This can be remedied by a wall treatment with WP7-501 Wall + Basement Waterproof.

Driving rain that penetrates the wall and slows down the drying process can be treated with a façade treatment using WP7-401 Facade Waterproof.

Wait until the walls are completely dry. Good ventilation promotes the drying process. Wait at least two weeks before installing a construction dryer. Do not install a retention wall to avoid moisture problems such as corrosion, damage to the walls and serious mould or occurence of dry rot.

Specifications

Base: water-based silane emulsion 
Contents: 3x 600 ml 
Consistency: gel
Colour: white/yellow-white when applied, transparent after penetration
Relative density: 0.9 (+/- 0.02) 
Solid content: +/- 80%
Application temperature: +5°C to +30°C
Shelf life: 12 months, stored cool and dry in original packaging