Protecta Waterproofer, a high viscosity cream-like impregnating fluid (based on alkyl-alkoxy-silanes) that, when applied to cured Protecta EX Mortar, the Waterproofer protects the surface by making it water repellent. The Waterproofer will also protect other porous substrates such as stone, brickwork and concrete in facades.

Protecta Waterproofer also provides a comprehensive protection against efflorescence and decomposition caused by water-soluble pollutants, frost damage and attack by moulds and bacteria on damp substrates.

The construction material’s physical properties, especially its water vapour permeability (S_d-value) is barely affected by application of Protecta Waterproofer.

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• Features & Benefits
• Properties & Precautions
• Application
• Technical Data

Features & Benefits

• Long-lasting and reliable
• Simple, drip-free application with excellent workability
• Water and VOC-free
• High concentration of active ingredients
• Alkaline stable
• Does not build up a film
• Extraordinary penetration depth
• Can be applied without any loss, in one layer and without sag
• Causes no discoloration or intensification of masonry surfaces

Properties & Precautions

Protecta Waterproofer can be used on many building materials, including:

• Protecta EX Mortar and other mortars
• Plaster
• Porous concrete and concrete (perfectly suited for concrete repair)
• Limestone and natural stone
• Industrial made bricks and clinker

Protecta Waterproofer is not suited to be applied on substrates that provide no, or very low absorption capacity, such as:

• Belgian hard stone (Arduin)
• Dense or polished marble
• Granite
• Similar substrates

Protecta Waterproofer is not suited for submerged usage, and should not be in contact with bitumen or bitumen-like materials, synthetic resins or acrylate-based coatings (e.g. concrete paints). Please avoid applying over coatings and insulating materials as damage may occur. In case of contact, please remove the product immediately with plenty of cold water.

Application

Prepare

Before application, ensure the surface to be treated is clean, dry and free from grease, dirt, dust, and other contaminants. Remove all existing paints and coatings until you have a sound surface. If a stirrer is used, ensure it is cleaned thoroughly.

Apply

Ensure good ventilation. The product can be applied with a roller or brush. Apply 200 g/m² in one layer for sufficient protection on most surfaces, but not more than 400 g/m².

Please note, this is guidance only and not specific, as the absorption behaviour of substrates can be very different. It is recommended to test smaller areas to determine the actual needed amount.

The active ingredient penetrates the substrate from 30 minutes to several hours, depending on the porosity of the substrate. The milky-white cream colour usually disappears without any residues and without a colour intensifying effect, provided that the treated surface has a minimum level of absorption capability. If in doubt, it is recommended to test smaller areas first.

Technical Data