Nordtreat-NORFLAM-W319
  • Made in Finland

NORFLAM® W319 flame retardant

Bio-based NORFLAM® W319 flame retardant (previously NT THERMO BLACK) is an opaque one-product solution for professional fire protection of exterior cladding made of thermally modified spruce.

Use for: Thermally modified spruce

Reaction to fire performance: D-s1, d0

  • Exterior use
  • No need for topcoat
  • Opaque finish

Features

  • Bio-based low-VOC flame retardant
  • Euroclass D-s1, d0 reaction to fire performance (EN13501-1)
  • Industrial, off-site and on-site treatment
  • Waterborne
  • Solid dark (black) colour only

Documents

Tests and classifications

  • EN 13501-1 
  • EN 13823
  • ISO 11925-2

Standards and wood species

Standards

NORFLAM® W319 treated wood products can be CE-marked according to the following standard:

  • EN 14915, Solid wood panelling and cladding

Wood species

  • Thermally modified spruce

Colours

Opaque black

Packaging options

  • 1000 litre IBC
  • 5–200 litre canister

Maintenance

Exterior applications

The maintenance period of NORFLAM® W319 treated thermally modified spruce is 7–10 years in exterior use with normal conditions. 

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.

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NORFLAM® W319 images

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Why choose NORFLAM® W319

NORFLAM® W319 is a bio-based wood stain classified for thermally modified spruce. It provides a Euroclass D-s1, d0 reaction to fire performance with an opaque matt smooth black satin finish. 

The flame retardant is absorbed in the wood, enabling best-in-class durability of reaction to fire performance in normal conditions in exterior use.

NORFLAM® W319 is a one-product solution based on the unique, certified NORFLAM® technology developed by Nordtreat.

NORFLAM® W319 flame retardant is used for fire protection of thermally modified spruce facade cladding.

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