Nos produits

Thirothane – Industrial urethane varnish

THIROTHANE is a very durable oil-based polyurethane with high resistance to wear, water, alcohol and common household products. THIROTHANE is available in T175 gloss and T175SL semi-gloss finish. It provides the floor with industrial grade protection. This product should be used for indoor applications. Its red-amber color at the time of application facilitates its installation and turns into a beautiful clear finish.

Would you buy this product?



  • Bright finish
  • Thicker finish
  • Easy application
  • High flexibility
  • No block effect


Categories: , Tag:




Building components



Hardwood floor

Covering rate

9,3 to 14,7 m2/L (380 to 600 ft2/gallon)


Amber red

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. All dirt and foreign matter must be removed with a vacuum cleaner, followed by a final cleaning with a pad moistened with solvent to remove all traces of dust. It is recommended to use Thiroco Sealer100, Sealer101 or Sealer102 as primer.


Use in well-ventilated areas without drafts during application and during drying. For laying and maturing Thirothane, it is necessary to have an ambient temperature higher than 15 ° C, however the ideal conditions are 25 ° C and 50% relative humidity. Pour a small amount directly onto the floor or into a paint tray and apply evenly using a pure silk brush or applicator pad. Depending on the ambient conditions, allow a minimum of 8 to 12 hours of drying between each coat. Lightly sand the surface with # 180 or # 220 fine paper in the grain direction of the wood between each coat. Take care to remove dust from sanding. For better durability, it is recommended to apply two coats of Thirothane in addition to the Sealer or three coats of varnish if no sealer has been used.


Under normal conditions (around 25°C and 50% RH), it is possible to walk on the floor after 24-30 hours. Wait 48 hours before replacing the furniture. Do not lay carpets or clean the floor before 7 days. The drying time depends on the application method, the temperature and the porosity of the surfaces.

Caution / Cleaning / Storage

Restriction / Caution

This product should not be used alternately with another product. It is recommended to remove all food from the application site when using Thiroclair Varnish. Solvents from this product may alter the taste of foods in cabinets, refrigerators and freezers.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).