Capaproof PRIMER ALI

Impregnation in alcoholic solution containing adhesion promoters

• Suitable for CAPAPROOF PU ALI aliphatic transparent membrane
• Adherence promoter

Colourless, non-yellowing impregnation. Specially designed to increase the adhesion of the CAPAPROOF PU ALI transparent aliphatic polyurethane membrane in applications on non-porous substrates.

Capaproof PRIMER ALI

Adhesion promoter to be used in the following situations:
• Specially designed to increase adhesion on non-porous substrates only WHEN APPLYING CAPAPROOF PU ALI aliphatic and transparent membranes.
• For application on non-porous substrates such as vitrified tiles, ceramic, marble.
• In cases of substrates not specified here, perform a test.
Note: consult our technical department for application on other types of substrates or settings


It is presented in 4 kg metallic containers.

General characteristics

• Apply in thin coats and dampen with a cloth (consumption approximately 60 g/m2). No dilution with any type of solvent is required.
• Requires a smooth, clean and dry substrate with no residual humidity
• Drying time between 10 and 15 minutes, before applying the CAPAPROOF PU ALI membrane.
• Do not apply on substrates with existing humidity, or humidity or contact with water coming from the inside of the substrate (possible water table, condensation, filtrations, etc.)


12 months at a temperature of 5 oC to 35 oC, always stored in dry places. If the container is opened it should be used immediately.


The recommendations for use are based on our knowledge and experience. The technical data have been obtained under normal laboratory conditions and may vary depending on the working conditions. As the conditions of application are beyond our control, the information in this sheet does not imply any liability on the part of the company.


Declaraciones Medioambientales

Concienciados con el medioambiente