F62 CLASSE 1 FLOOR

Description

F62 CLASSE 1 FLOOR transparent two-component intumescent system for the fire protection of wooden floors, certified: - Class 1 reaction to fire (D.M.I. 6/3/1992 and M.I. circular 7/7/1992). - Bfl-s1 reaction to fire according to European classification, classification report I.G. 440276. The system involves the application of three coats mixed as follows: - 2 parts of: F62 CLASSE 1 FLOOR“A” paint and - 1 part of: F62 CLASSE 1 FLOOR“B” catalyst For a total consumption of 400 g/m2.

From the technical data sheet

Characteristics

transparent two-component polyurethane fire-retardant system used to reduce the reaction to fire of wooden items laid on indoor floors, such as parquet, platforms and stages, classified as Class 1 and Euroclass Bfl-s1 for reaction to fire. Application ensures excellent abrasion resistance of the protected surface. The system can be applied to wood-based materials with the exception of: - materials veneered with sliced or peeled wood veneers using thermoplastic resin-based adhesives; - assemblies with a cellular or blockboard structure, including air cavities or cavities filled with materials of a heterogeneous nature; as required by standard UNI 9796/1990. The system involves the application of several layers of the “A” + “B” mixture for a total protective quantity of 400 g/m2. The maximum consumption per layer is 140 g/m2 (3 coats of the product will be required, the first and second of 140 g/m2 each, the third of 120 g/m2). MIXING RATIO 2:1

Tools

Roller, brush, spray.

Application method

The product is recommended for application on substrates in wood and wood-based materials, in particular those to be laid as flooring (parquet, platforms, stages) installed indoors. Before proceeding with the application, check that the wood is clean and free from grease or resin stains and that its moisture content is between 8 and 10%. Mix component “A” thoroughly before adding component “B”, then mix well to homogenise the product. The product is very sensitive to humidity, which may cause hazing. Do not proceed with the application at temperatures below +10°C, with relative humidity above 65%, or in the event of fog or rain. If the product has been stored at low temperatures, bring it to at least +15°C. The film reaches its full hardness, and therefore its maximum abrasion resistance, after 4 - 5 days. Clean tools with washing acetone. Please note: the data given refer to an application of 133 g/m2 of wet varnish, at a temperature of 23°C and 65% R.H. Different coating thicknesses and environmental conditions may cause variations in drying times.

Painting system

- Sand with 36-grit paper and then with 50- and 100-grit abrasive paper; - Fill with Parquet Filler mixed with the dust collected from sanding; - 3 - 5 hours after filling, sand with 120- or 150-grit abrasive paper and apply one layer of F62 CLASSE 1 FLOOR at 140 g/m2; sanding must be carried out removing all traces of filler completely, leaving only the filler present in the gaps. Always sand between one application and the next when the overcoating time exceeds 4 hours; - After 16 - 18 hours sand with 180-grit paper and apply a second layer of F62 CLASSE 1 FLOOR at 140 g/m2; - After 16 - 18 hours sand with 180-grit paper and apply a third layer of F62 CLASSE 1 FLOOR at 120 g/m2.

Maintenance

Clean with water and floor detergent. Periodically check the integrity of the paint film. In case of damage, sand back to bare wood and restore the protective system on the damaged area.

Specification clause

Ready-to-use text for tender specifications