Thompsons Water Seal 5L

Protect your exterior bricks, stone, concrete and wood from damage with Thompson's Water Seal. The liquid is easy to apply and can be placed directly onto damp surfaces in need of defence. Brush off growths in the area before administering a smooth and even coat across an entire wall. One coat usually takes two hours to dry, and a second can be applied after the first to give lasting layered protection.
Fractures happen when water gets into the material, freezes, then thaws – this water seal soaks into the material blocking up pores that rain would normally penetrate. The hydrophobic wax repels water and stops freeze and thaw weathering before it can occur. Water Seal's micro silicone emulsion also reduces the build-up of moss and plant life that can create bigger cracks. Plus, the low-strength odour allows you to apply it without irritating fumes.
• Protection for bricks, stone and concrete
• Prevents damage caused by freezing and thawing
• Coverage up to 10m²/litre depending on porosity of the substrate
• Suitable for outdoor use only
• Hazard safety codes: R38