Finngard 500 - Protective Coating for Concrete
|描述||Alkali-resistant water-borne silicone modified water-repellent acrylate coating, which protects concrete against humidity. Used together with silicone primer and Finnseco Polytop finishing mortar, FinnGard 500 slows down the corrosion of reinforcing steel significantly by keeping the structures dry. Maximum grain size approx. 0.5 mm.|
|产品特性||Suitable for painting of concrete surfaces such as facades, front and side panels of balconies or other exterior concrete structures according to the instructions for use.|
|推荐用途||Residential, business and industrial buildings, warehouses etc.|
|涂布率||0,4-0,5 m2 /kg (approx. 3-4 m2/l) / one treatment. Coverage is determined by the roughness and porosity of the surface as well as painting method and conditions.
|涂刷方法||Roller, brush or spray with elevated tank (min. nozzle size 0,043'', spray angle 60º).|
|温度23度，相对湿度为50%时的干燥时间||Recoatable after 12 hours.|
|水汽阻力（EN ISO 7783)||sd,H2O < 0,5 m|
|透水性(EN 1062-3)||w24 < 0,1 kgm-2h-0.5.|
|粘合强度（ISO 4624)||> 0,8 N/mm2.|
|耐候性||Good, also in maritime and industrial atmosphere. FinnGard 500 prevents capillary penetration of rain and splash water into the structure. Allows water vapour from inside the structure to pass through.|
|有效成分量||Approx. 50 %.|
|密度||Approx. 1.7 kg/l, ISO 2811|
|储存||Protect from frost.|
|施工条件||The surface to be treated has to be dry, the temperature of the air at least +5 °C, and the relative humidity of the air below 80 %. Do not paint under strong sunlight.|
|准备||New concrete surfaces
Remove dirt, loose material and salts from unpainted concrete surfaces. Pre-cast concrete surfaces can be painted after the first heating season. Surfaces cast using formwork must be mechanically worked (e.g. sand-blasted) to create sufficient texture and remove the glass-like, glossy hydrated cement. Similarly, the cement paste on cast surfaces must be removed by sand-blasting, steel brushing or high-pressure washing with the addition of sand. Concrete surfaces which are very porous are recommended to be treated with Finnseco Polytop finishing mortar. Treat new plaster surfaces after a curing time of 1-2 months.
Previously painted surfaces
Remove flaking, poorly attached or powdery paint coats from previously painted surfaces. Choose the method of removal according to solidity of the substrate and type of paint to be removed (e.g. steel-brushing, high-pressure washing or water-sand blasting). Remove also poorly attached, fragile plaster and concrete surfaces. Open possible cracks in concrete constructions by pick- dressing, or with edge grinder and bobbing. Clean rust from the reinforcement bars, and continue the treatment using a suitable Finnseco repair mortar. Sand-blasted, very porous concrete surfaces are recommended to be finished with Finnseco Polytop finishing mortar.
Applicable national health and safety precautions must be followed in the pre-treatment and coating of substrates containing asbestos.
|修补||Patch opened cracks, holes and hollows to the same level as the surrounding concrete surface with a suitable Finnseco repair mortar, and plaster surfaces with lime cement mortar. Cure the patches with care and allow them to harden before painting.|
|表面处理||Stir FinnGard 500 well before use. Reserve enough paint from the same batch for one uniform surface, to avoid possible colour differences. However, if you have to use paint from various batches, paint overlapping area with a mixture of new and old batch (e.g. 1:1) Arrange so that the overlapping area is situated in an unobserved place.
New concrete surfaces and hard lime-cement plaster surfaces:
Apply two coats of FinnGard 500. Drying time of 12 hours should be allowed between coats. If necessary, FinnGard 500 can be thinned with max 5 % of water.
Old unpainted concrete surfaces or surfaces where the old paint has been removed:
a) Prime concrete surfaces with a mixture of Alfagel 400 and FinnGard 500 (1 volume part Alfagel 400 and 4 volume parts FinnGard 500, which is approximately 3.3 kg of Alfagel 400 and 25 kg of FinnGard 500). Apply FinnGard 500 earliest 12 hours after priming.
b) Prime the surface with Kivisil primer or Alfagel 400 according to the instructions on the data sheet. Apply two coats of FinnGard 500 after the primer has been absorbed into the substrate (surface does not appear glossy). Drying time of 12 should be allowed between the coats. FinnGard 500 can be thinned with water max. 5%.
Overcoated surfaces can be also treated without priming by applying two coats of FinnGard 500. However the use of silicone primer improves the protective capability of the coating.
The best protections for reinforcement bars against corrosion is a separate priming treatment (option b)
Old surfaces with solid, well adhering old paint film can be treated as new concrete surfaces: two coats of FinnGard 500.
|工具清洗||Clean tools with water.|
|维护指导||Avoid cleaning for a month. After that, the surface can be cleansed carefully with a high pressure cleaner without detergent. The cleaning can leave permanent mark on the surface so, carefully wash according to joints. Remove loose dirt lightly with a brush without rubbing.
Apply Tikkurila Mould Removal to remove mould or algae. Rinse well.
Note! After using Tikkurila Mould Removal always recoat the surface.
|维护处理||Clean paint splashes immediately from windows, or protect the windows before priming and coating.
Careful pressure-washing without cleaning detergents is usually enough. For biological growth, such as mould or algae, use hypochlorite solution (e.g. Homeenpoisto 1), and rinse well.
FinnGard 500, FinnGard 150 or Kivisil Facade Paint. Check the condition of the structures and do necessary repair work before maintenance painting.
The paint can be thinned up to 5-10% with water for priming, if necessary. Finish with unthinned paint. Follow the recommended coverage values to ensure maximum protective effect. Adjust overlapping to structural details, windows, joints of elements etc.
Surfaces painted with FinnGard 150 can be re-painted with FinnGard 150
|EU VOC 2004/42/EC-限值||(Cat A/c) 75g/l(2007) / 40g/l(2010)
Finngard 500 contains VOC max. 75g/l.
|健康安全等级||The product is not classified as dangerous. A Material Safety Data Sheet is available on request.Material Safety Data Sheet - Finngard 500|
|环境保护与废弃物回收||Empty cans should be recycled or disposed of in accordance with local regulations. Liquid waste should be destroyed according to the local regulations.|
|运输||ADR: not classified|
|ssa290208 / ars200308 / jar110308 / uha160402 / 359-|