UNIEPAL-DREW SPECIAL FR fire retardant varnish

Uniepal-Drew Special FR - varnish preparation:

Mix the product very carefully before use. Diluting the preparation is not recommended. If threading occurs, the viscosity of the varnish can be reduced by adding xylene or white spirit in an amount not exceeding 10%.

Uniepal-Drew Special FR - substrate preparation:

Fill in any surface defects, clean, degrease and remove dust from the substrate. Uniepal-Drew Special FR varnish should only be applied to surfaces made of raw wood with a relative humidity not exceeding 20%. After drying, the varnish creates a colorless coating without changing the color of the wood.

Uniepal-Drew Special FR - application:

Apply the varnish at a temperature above 10ºC. Before starting the actual work, it is recommended to perform a small-scale test to optimize the application parameters (efficiency, flow, drying time, etc.). Apply the varnish two or three times on vertical and horizontal surfaces in a total amount of at least 200 g/m2 ². The thickness of a single wet layer should not exceed 60 μm. The final coating thickness should be min. 120 μm. The time interval between subsequent treatments depends on the ambient temperature and humidity. At a temperature of 23ºC (± 2) and a relative humidity of 50% (± 5), the second layer can be applied after 16 hours, the third one after the previous layers have completely dried. If high aesthetics of the wood finish is important, it is recommended to apply the first thin layer and, after drying, sand with an abrasive material > 240 grit to remove hairs. Immediately after completing the work, clean the tools thoroughly with xylene or white spirit.

Uniepal-Drew Special FR - comments:

• Efficiency: max 5 m ² /l when completely painted, depending on the absorbency of the substrate.
• Solubility: insoluble in water, soluble in some organic solvents.
• After drying, it creates a colorless coating without changing the color of the wood.
• Surfaces covered with other varnishes may change the fire classification.

The technical condition of the coating should be checked at least once every 12 months. In case of mechanical damage (e.g. scratches, cracks, wood cracking) or chemical damage (e.g. aggressive rainfall, bird droppings), the defects should be filled. Do not mix with other varnishes.