About the Product

WeatherBLOCKER! is an aqueous based hydrophobic impregnating agent based on Fluorcarbon technology. WeatherBLOCKER! is a high quality speciality product for hydrophobic impregnation of natural mineral substrates.

Permanent, breathable & clear waterproof coating. Protection against the damaging effects of penetrating damp

Long Term Protection & Low Maintenance

Energy Saving


Nano Technology

Water Repellent

Highly Polymer Modified

How to use WeatherBLOCKER!

Clean the wall down to remove any contamination and dirt

Pour out the material into a clean bucket

Apply by brush or by using an airless spray gun, ensuring all windows have been masked to avoid over spray

After 7 days Weather blocker is fully activated. Water just bounces off keeping the walls dry and free from water damage


All surfaces should be clean, reasonably dry and free from algae, lichen & other growths and grease. If there is evidence of organic growth, power wash to remove & apply Wethertex™ Fungicidal wash in accordance with instructions. WeatherBLOCKER! can take up to 7 days until full effects can be visible.


WeatherBLOCKER! is best applied to the mineral substrate by the airless technique, undiluted and in the desired thickness. Brushes or lambskin roller may be used for smaller areas. Up to 0.1 - 0.2 Ltrs/m² may be applied in one operation to vertical surfaces without loss of material. The exact amount depends on the absorbency of the substrate. Ensure that the substrate is fully saturated.


WeatherBLOCKER! is supplied ready to use.


When stored unopened in a dry place at temperatures above 5°C, shelf life is 12 months from date of manufacture.


All equipment must be washed with clean water immediately after use. Waste material should not be emptied into drainage systems.


This product contains a biocide for the protection of the cured product. Contains 2-OCTYL-2H-ISOTHIAZOL- 3-ONE. May produce an allergic reaction. For further information, please request the material safety data sheet for this product.