NORFLAM® W311
Flame retardant
Bio-based NORFLAM® W311 flame retardant is a one-product solution for professional fire protection of interior and exterior wood cladding.
- EN 13501-1
- EN 16755
- EN 13823
- EN 11925
NORFLAM® W311 treated wood products can be CE-marked according to the following standards:
- EN 14915, Solid wood cladding
- Spruce
- Pine
- Thermally modified spruce
Basic information
- Bio-based low-VOC flame retardant
- Euroclass C-s1, d0 reaction to fire performance (EN13501-1)
- Industrial, off-site and on-site treatment
- Waterborne
- UV protection (for toned colours)
Reaction to fire performance: C-s1, d0
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Maintenance
Exterior applications
The maintenance interval for solid exterior wood cladding treated with NORFLAM® W311 is up to 7 to 10 years, depending on the structure, weather exposure and treatment method.
In outdoor applications, wood cladding that was industrially, off-site or on-site treated according to the manufacturer's instructions will require re-treatment after 7 to 10 years. The re-treatment must be done using the same flame retardant originally used to treat the wood product.
Interior applications
In indoor use, wood cladding that was industrially, off-site or on-site treated according to the manufacturer's instructions will maintain fire protection properties throughout its life cycle unless the surfaces are mechanically damaged.
For more information about NORFLAM® W311 maintenance and on-site treatment instructions, see the Technical datasheet or contact Treet's technical service.
Why choose NORFLAM® W311
NORFLAM® W311 is a bio-based, water-borne, pH-neutral, low-VOC flame retardant for wooden construction products. It provides a Euroclass C-s1, d0 reaction to fire performance with a clear or semi-translucent toned finish.
NORFLAM® W311 is a one-product solution based on the unique, certified NORFLAM® technology.
NORFLAM® W311 flame retardant is typically used for fire protection of facade and interior cladding.
Nordic Hues
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