
Sika® Pyroplast® Wood T with topcoat Sika® Pyroplast® Wood Top T New
Sika® Pyroplast® Wood T is an ecological and efficient water based, transparent fire protection coating which forms a carbon char under the effect of heat. Sika® Pyroplast® Wood T is thoroughly tested to provide spread-of-flame protection and delays the inflammation of interior natural wood and wood derivates. Sika® Pyroplast® Wood T emphasizes the interior design of timber structures in keeping an attractive option to architects, builders and end-users.
- Ecological and efficient water based coating
- VOC Sika® Pyroplast® Wood T < 40 g/l
- Free of aromatic solvents
- Low material consumption
- Simple application
- No additional statical load of coating
Usage
Reduction of ignitability of soft- and hardwood ≥ 10 mm thickness and other timber derivatives, i. e. plywood, chipboard, fibre insulation board, hardboard and also on veneers ≥ 13 mm thickness. Insulates against heat, checks fire, prevents propagation of fire and spread of flame and diminishes flue-gas temperatures. Sika® Pyroplast® Wood T should not be used in areas of high humidity, heat sources or on surfaces where significant physical impact is likely such as floors, stairs etc.Advantages
- Ecological and efficient water based coating
- VOC Sika® Pyroplast® Wood T < 40 g/l
- Free of aromatic solvents
- Low material consumption
- Simple application
- No additional statical load of coating
Packaging
Sika® Pyroplast® Wood T Primer | 5 kg net. |
Sika® Pyroplast® Wood T | 25 kg and 5 kg net. |
Sika® Pyroplast® Wood Top T New | 10 kg and 2.5 kg net. |
Sika® Unitherm® Thinner | 25 l and 5 l |
Colour
Sika® Pyroplast® Wood T Primer | Transparent |
Sika® Pyroplast® Wood T | Transparent |
Sika® Pyroplast® Wood Top T New | Matt |
Product Details
SUSTAINABILITY
- Complies with German AgBB, French VOC (A+) and Scandinavian M1 as coating system
APPROVALS / CERTIFICATES
Independently fire tested and approved to major European and national standards including:
- EN 13501-1 (ref: K-3067/776/14-1)
- BS 476- 6 (ref: 264398), part 7 (ref: 264397)
- DIN 4102-1 (ref: Z-56.313-91)
- ASTM E84-08a (ref: 01.15209.01.077b)
Shelf life
18 months
Storage conditions
In originally sealed containers in a cool and dry environment.
Protect against frost!
Density
Sika® Pyroplast® Wood T Primer | ~1.00 g/cm3 |
Sika® Pyroplast® Wood T | ~1.33 g/cm3 |
Sika® Pyroplast® Wood Top T New | ~0.95 g/cm3 |
Flash point
Sika® Pyroplast® Wood T Primer | Not applicable |
Sika® Pyroplast® Wood T | Not applicable |
Sika® Pyroplast® Wood Top T New | ~ + 48°C |
Solid content
Sika® Pyroplast® Wood T Primer | ~65 % by weight |
Sika® Pyroplast® Wood T | ~63 % by weight |
Sika® Pyroplast® Wood Top T New | ~48 % by weight |
Application
Relative air humidity
Max. 80 %, application temperature shall be at least ≥ 3 K above dew point.
During application and drying of total Sika® Pyroplast® Wood coating system including Sika® Pyroplast® Wood Top T New as well as transportation special protection measures must be taken against weathering.
For Sika® Pyroplast® Wood T Primer, Sika® Pyroplast® Wood T with topcoat Sika® Pyroplast® Wood Top T New and Sika® Pyroplast® Wood Top T New.
Substrate temperature
Object temperature not below + 10°C, to max. + 40°C*
* If higher temperatures occur, please consult the Technical department for further assistance.
For Sika® Pyroplast® Wood T Primer, Sika® Pyroplast® Wood T and Sika® Pyroplast® Wood Top T New.
Substrate moisture content
At high moisture content of the timber (> 15 %), the coating is unlikely to dry satisfactorily and blooming may result. Therefore the moisture content of the timber should be, as near as possible to the level it will stabilize at in use.
For Sika® Pyroplast® Wood T Primer, Sika® Pyroplast® Wood T and Sika® Pyroplast® Wood Top T New.
Waiting time to overcoating
Overcoatable with topcoat Sika® Pyroplast® Wood Top T New after approx. 48 hours.
Prior to further applications possible contaminations must be removed.
Drying time
Drying/Curing
At approx. + 20°C temperature and 60 % relative humidity:
Sika® Pyroplast® Wood T Primer:
Touch dry | after ~0.5 h |
Through dry | after ~2 h |
Sika® Pyroplast® Wood T with topcoat Sika® Pyroplast® Wood Top T New and Sika® Pyroplast® Wood Top T New:
Touch dry | after ~2 h |
Through dry | after ~24 h |
Different temperatures, different relative humidity and different fire protection coating thickness have an influence on drying time.
Do not stack timber components treated with Sika® Pyroplast® fire protection coatings.
Consumption
1 x 60 g/m2 Sika® Pyroplast® Wood T Primer (depending on wood surface)
1 x 300 g/m2 Sika® Pyroplast® Wood T (Woodclass D > 13 mm)
or
1 x 350 g/m2 Sika® Pyroplast® Wood T (Woodclass D > 10 - 12 mm)
plus
1 x 50-60 g/m2 Sika® Pyroplast® Wood Top T New (mandatory)
Consumption rates are based on fire performance according EN 13501-1
B EN 13823 FIGRA ≤ 120 W/s and LFS < edge of specimen and
THR600s ≤ 7,5 MJ
and
EN ISO 11925-2 Exposure = 30 s Fs < 150 mm within 60 s
s1 SMOGRA ≤ 30 m2 / s2 und TSP600s ≤ 50 m2
d0 No flaming doplets/particles in EN 13823 within 600 s
If consumption rates for alternative standards are requested, please consult the Technical Department of Sika Deutschland GmbH.
SUBSTRATE PREPARATION
Substrate must be dry, free from dust, oil, wax, grease, dirt, resin, etc.; Existing coatings with poor adhesion have to be completely removed, i.e. with solvent-based paint stripper or to be sand down. Surfaces that have been treated with non-acid resistant coatings or release agents such as emulsion paints containing lime, chalk or lithopone should be rubbed down completely. Timber substrates with wetting difficulties should be roughened thoroughly with abrasive paper. The moisture content of the timber should be below 15 %.
Pre-treatment with wood preservatives
If resistance to wet rot, fungi or insect attack is requested, we recommend using commercial preservative agents based on oil-alkyd resins provided they are compatible with the Sika® Pyroplast® fire protection system.
Apply Sika® Pyroplast® fire protection coating system only after the preservative treatment is completely dry. The moisture content of the timber should be below 15 %. Sika® Pyroplast® Wood T Primer may be used to allow sufficient adhesion or avoid diffusion of wood ingridients on resinous wood.
MIXING
Stir thoroughly, free of lumps.
APPLICATION
The method of application has a major effect on achieving uniform thickness and appearance. Spray application will give the best results. The indicated dry film thickness is easily achieved by airless spray. In case of application by roller or brush, additional layers may become necessary to achieve the required coating thickness, depending on type of construction, site conditions, colour shade etc. Prior to application a trial on site may be useful to ensure that the selected application method will provide the requested results
Airless spraying:
- Material shall be applied undiluted
- Airless spray equipment with pressure ratio ≥ 30 : 1
- Filters should be removed
- Hose diameter not below ⅜ "
- Whipline ¼ " may be used
- Recommended nozzle sizes:
Sika® Pyroplast® Wood T: 0.28 - 0.38 mm
(0.011 - 0.015 inch)
Sika® Pyroplast® Wood Top T New: 0.28 - 0.38 mm
(0.011 - 0.015 inch) - Solvent resistant hoses must be used for Sika® Pyroplast® Wood Top T New!
Apply two coats of Sika® Pyroplast® Wood T to a load of 175 g/m2 each coat, in order to obtain a very smooth finish by cutting down wooden fibres, light sanding after the first coat may be recommend (i. e. with 150 grade paper).
Above data shall be used as a guideline with variations being made to suit local conditions.
Brushing and rolling:
- Material shall be applied undiluted
- Load natural fine bristle brushes or short pile lambswool rollers are recommended
- Application of two coats of Sika® Pyroplast® Wood T to a load of 175 g/m2 each coat is recommended
CLEANING OF EQUIPMENT
Sika® Pyroplast® Wood T Primer and Sika® Pyroplast® Wood T:
Immediately after use with warm water.
Sika® Pyroplast® Wood Top T New:
Immediately after use with Sika® Unitherm® Thinner.