Capalac Isolierspray

Fast-drying primer-sealer spray

to prevent penetrating stains.

For exterior and interior use.

LV Texte

Field of Application

Primer-sealer, suitable to prevent penetrating substances that leaves marks or discolouring substances of exterior and interior substrates to be coated, like e.g. asphalt/bitumen, tar, stains of fumes or soot, stains due to water spotting and crayons. A subsequent surface coating is essential.

Material Properties

  • Fast-drying.
  • Multipurpose use as sealer-primer.
  • Recoatable.
  • Compatible with polystyrene (PS).

Material Base / Vehicle

Solvent-based synthetic resin.

Packaging/Package Size

400 ml spray (aerosol) can




Keep in a cool place. Shelf life of unused spray can: 12 months.

Suitable Substrates

Mineral substrates, wood and derived timber products, PS.
Substrates must be dry, clean and solid/sound/stable. 
Max. permissible wood moisture content: 15 %.

Substrate Preparation

Brush cleaning of water spots and salt efflorescences with a dry wire brush.

Method of Application

Shake the aerosol can well before use for at least 30 seconds.

Spray evenly thin cross coats on the surface and allow to dry for approx. 30 minutes between coats.

Spray 2 to 3 coats of Capalac Isolierspray onto the surface to be treated.

Provide for sufficient drying times in order to avoid a diminished sealing effect. Particularly, when thick-film or slow-drying finishing coats are applied, noticeable marks (stains) may occur in case of an insufficient thickness of sealer coats and on porous substrates. Thus, the sealing effect must always be checked by a trial coating.

Upturn the can's base vertically after use and press on the valve shortly until no material escapes.

Surface Coating System

Recoatability: Compatible with Caparol one-component paints & enamels. Solvent-based and water-thinnable (dilutable/waterborne).


Spreading rate: Approx. 1.5 – 2.0 m2/can

Application Conditions

Min. 8 °C up to max. 30 °C for product, ambient air and substrate.
Max. permissible relative humidity: 75 %.

Drying/Drying Time

 At 20 °C and 60 % relative humidity. dust dry dry to handle recoatable
 after minutes 10 20 30

Tool Cleaning

With Disboxid 419 Verdünner (thinner).

Special Risks (Hazard Note) / Safety Advice (Status as at Date of Publication)

Extremely flammable aerosol. Toxic to aquatic life with long lasting effects. May cause drowsiness or dizziness. Avoid breathing vapours/spray. Use only outdoors or in a well-ventilated area. Avoid release to the environment. IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/ physician if you feel unwell. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container to an approved waste disposal plant.
Pressurized container. Protect from sunlight and do not expose to temperatures exceeding 50 °C. Do not pierce or burn, even after use. Do not spray on a naked flame or any incandescent material. Keep away from sources of ignition - No smoking. Keep out of the reach of children.


Materials and all related packaging must be disposed of in a safe way in accordance with the full requirements of the local authorities. Particular attention should be made to removing wastage from site in compliance with standard construction site procedures.

In Germany: Only completely emptied spray/aerosol cans must be given for recycling. Dispose spray/aerosol cans with residues via a special collecting point accepting used enamels.

Substances of Content - Declaration

Special synthetic resin, titanium dioxide, mineral fillers, ether, aliphates, glykol ether, acetone, additives.

Further Details

See Material Safety Data Sheet (MSDS).

Customer Service Centre

Tel.: +49 6154 71-71710
Fax: +49 6154 71-71711

International Distribution: Please see

Product recommendation:

Capalac SuperWeiß

Capalac BaseTop Venti

Capalac Hochglanz-Buntlack

Capacryl PU-Satin

Capalac Aqua Multiprimer