Article No. 216025
Water-soluble, boron-free fire retardant for wood impregnation
Product specifications
On delivery
The stated values represent typical product characteristics and are not to be construed as binding product specifications.
Field of application
- Interior wood
- Exterior wood not directly exposed to weather
- Roof structures
- Wall and ceiling panels
- Wall and ceiling constructions
- Shop fitting and trade fair stands
- Theatre and stage constructions
- Prefabricated timber houses
- Stables, sheds
Properties
- Improves the fire behaviour of wood
- Free from boron and biocides
- Clear once dry: does not stain the wood
- The impregnated wood retains its natural appearance
- Approved for use in systems with selected decorative coatings
- Easy to prepare with water
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Preparation
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Substrate requirements
The substrate must be clean and free of dust.
The substrate must be free of all traces of fungal or bacterial attack, algae growth or insect infestation.
Permissible wood moisture content: u < 25%
Thick solid timber ≥ 22 mm
Thick tongue and groove joints ≥ 12 mmThe wood must be cut to size and finished.
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Preparations
Do not attach metallic fittings prior to impregnation.
Spacers must be inserted between wood layers (ideally plastic rods).
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Application
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Application requirements
Temperature of the material, air and substrate: from min. +5 °C to max. +30 °C.
Relative humidity max. 80%. -
Vacuum pressure impregnation process
Pre-vacuum: -0.9 bar (min. 30 min)
Pressure phase: ≥ 9 bar (min. 4 hrs)
Post-vacuum: -0.7 bar (min. 15 min)After re-drying (wood moisture content max. 15%) and removal of the excess salt residues by brushing, the treated wood can be coated with approved decorative coatings (see system products).
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Application instructions
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The treated components must be protected against rain and moisture (enclosed spaces, covered structures etc.) and must not be exposed to weathering.
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Drying
Re-drying: after approx. 4 weeks (at 23 °C and 50% RH)
Technical drying in a drying chamber is recommended.
Low temperatures, poor ventilation and high humidity delay drying.
Wood moisture content may only be measured using the Darr method.
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Working tools / cleaning
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Vacuum pressure impregnation process
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Storage / shelf life
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If stored unopened in its original container in a cool, dry place and protected against frost, the product will keep for at least 12 months.
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Usage
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Spruce/fir: average application quantity ≥ 200- 250 g/m² (depending on the timber cross-section/planks) of wood surface to be protected and ≥ 25 kg salt/m³ wood
For wood species not listed here, please consult Remmers Technical Service.
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General information
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The impregnation system must be provided with a suitable protective coating.
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Disposal instructions
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Larger quantities of leftover product should be disposed of in the original containers in accordance with the applicable regulations. Completely empty, clean containers should be recycled. Do not dispose of together with household waste. Do not allow to enter the sewage system. Do not empty into drains.
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Safety / regulations
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For further information on the safety aspects of transporting, storing and handling the product and on disposal and environmental matters, please see the current Safety Data Sheet.
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