Nordtreat-NORFLAM-W311
  • Made in Finland

NORFLAM® W311 flame retardant

Bio-based NORFLAM® W311 flame retardant (previously NT FACADE) is a one-product solution for professional fire protection of exterior and interior wood cladding.

NORFLAM W311® has passed EN 16755 (NT FIRE 054) durability of reaction to fire performance test.

Use for: Spruce, Pine, Thermally modified spruce

Reaction to fire performance: C-s1, d0

  • Interior and exterior use
  • No need for topcoat
  • Tintable

Features
  • 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)

Documents

Tests and classifications
  • EN 13501-1
  • EN 13823
  • EN 11925
  • EN 16755 (NT FIRE 054) 

Standards and wood species

Standards

NORFLAM® W311 treated wood products can be CE-marked according to the following standard:

  • EN 14915:2013, Solid wood cladding

Wood species

  • Spruce
  • Pine
  • Thermally modified spruce

Colours
  • Clear (colourless)
  • Semi-translucent colour collection

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Packaging options
  • 1000 litre IBC
  • 5–200 litre canister

Maintenance

Exterior applications

The maintenance interval for solid exterior wood cladding treated with NORFLAM® W311 is 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 the fire protection properties throughout its life cycle unless the surfaces are mechanically damaged.

For more information about NORFLAM® W310 maintenance and on-site treatment instructions, see the Technical datasheet or contact Nordtreat's technology experts.

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NORFLAM® W311 images

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Why choose NORFLAM® W311

NORFLAM® W311 is a bio-based, water-borne, pH-neutral, low-VOC flame retardant for interior and exterior wood cladding. 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 developed by Nordtreat.

NORFLAM® W311 flame retardant is typically used for fire protection of facade and interior cladding in multistorey buildings.

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