CHIMAR provides technology for the production of two fire retardant grades :
- PYRO-S : liquid fire retardant for application in MDF production, patent protected WO 02/102926
- PYRO-SM : solid fire retardant for application in PB production.
Both products have the following common properties:
- Non-corrosive and halogen-free
- High retention of properties - IB, MOR, swells
- No deterioration of properties with time
- Do not increase formaldehyde emission, even can reduce it
- Board surface suitable even for veneering
Specific information about the application of each product:
- PYRO-S
- Only for MDF
- In liquid form, 53% concentration
- Easily applicable through a nozzle in the blowline, before resin spraying
- Dosing 10-15% dry on dry fibre (depending on operational conditions and desired specs)
- Immiscible with glue, except in a static mixer
- Total pressing time may need to be increased up to 10% as compared to the standard MDF production.
- PYRO- SM
- Only for PB
- In solid form
- Addition on all layers
- Addition on chips before the blender
- Dosing 15-20% on chips (depending on operational conditions and desired specs)
- Should be glued with chips
- Use of formaldehyde source may be necessary to readjust the reduced formaldehyde of the system.
CHIMAR provides technology for the production of fire retardants and assist the panel producers with manufacturing of wood-based panels that meet the requirements of Euroclass "B" that corresponds to following National fire retardant classes:
- M1: French (NF P 92-501, NF P 92-504)
- M1 : Spanish (UNE 23721)
- B1 : GERMANY (DIN 4102-1)
- 0/1 : UK (BS 476)
- xyz : Chile (ISO 5660-1)
- xyz : USA (ASTM -E84)
