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SEALER 100 is a fast drying vinyl sealant for interior applications. This product is used as a primer, preventing the varnish from penetrating the wood. It does non-sticky, does not yellow and dries quickly. This product is formulated for use with Thiroclair, Thirothane and Aquavernis varnishes.

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  • Finish: Glossy
  • Non-sticky
  • Non-yellowing
  • Reduces the waiting time before varnish coating


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Primer for Thiroclair, Thirothane and Aquavernis

Building components



Hardwood floor

Covering rate

Up to 7,5 m2/L (Up to 305 ft2/gallon)



Preparation / Application

Application temperature

15°C to 35°C Best conditions : 25°C et 50% H.R.

Application tools

Pure silk brush / Pad applicator

Surface preparation

Sand the surface completely in the direction of the wood fibers with # 80 coarse paper and then sand the surface with # 120 fine paper until a smooth, even finish is obtained. Remove dirt with a vacuum cleaner and finish cleaning with a pad moistened with Thiroco solvent to remove all traces of dust.


Mix the product before and during use. It is necessary to have an ambient temperature higher than 15 ° C, however the ideal conditions are 25°C and 50% relative humidity. Use in well-ventilated areas without drafts during application and during drying. Using like a first coat, Sealer Primer 100 will reduce the waiting time for Thiroclair, Thirothane or Aquavernis finishes to approximately 30 minutes. Pour a small amount directly on the floor or into a paint tray and apply evenly using a pure silk brush or applicator pad. Depending on the ambient conditions, allow about 20 to 30 minutes of drying before sanding the surface lightly with thin paper #180 or #220 in the grain direction of the wood. Take care to remove dust from sanding before laying the chosen topcoat.


Usually, the product becomes dry to the touch after 5 minutes. Allow to dry for about 20 minutes before walking on the wood floor. Wait at least 20 minutes before light sandblasting. The varnish can be applied after 20-30 minutes. The drying time depends on the application method, the temperature and the porosity of the surfaces.

Caution / Cleaning / Storage

Restriction / Caution

It is not necessary to remove the food from the places of application.No smoking. Keep out of the reach of children. Keep open container or freshly applied product away from open flames, from anything that could cause sparks such as electrical appliances or other sources of heat.


Mineral spirits


Store this product away from frost. Store in a cool place between 15°C and 30°C. The product may be kept in its original sealed container up to 12 months after the date of purchase by the user.

Available format

3,78L / 18,9L


The customer must ensure that this product is suitable for the intended purpose. The user assumes full responsibility for the results of an application in accordance with the instructions on this label. Atmospheric conditions, applicator’s skills and surface conditions being beyond the manufacturer’s control, we limit our liability for one year following the date of purchase, with proof of purchase, to replacement of defective material only in its original hermetic container. Port paid plant (FOB plant).