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Sikafloor-305 W is a two component, PUR matt, coloured seal coat which is designed to provide a finishing coat as part of the ComfortFloor and ComfortFloor Pro flooring systems. It is a water based product with the advantages of being very low odour and has good UV resistance.
Sika Sikafloor-305 W is best used on interior applications, providing a decorative coating in a choice of colour shades. It offers a good resistance to UV light and will not discolour and is non-yellowing, when exposed to sunlight.
The substrate must be clean, dry and free of all contaminants such as dirt, oil, grease, coatings and surface treatments, etc. Pull-off strength must be not less than 1.5 N/mm². If in doubt, apply a test area first. All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush or vacuum.
Prior to application confirm relative air humidity and dew point. Divide the area to be coated into parts for the number of A + B units, to have consumption under control and to know how far to paint with each A + B mixture. The rollers should be wetted in the first area, which should be taken into account by pouring out some more material. The roller will absorb approx 0.3-0.5 kg coating. With a small quantity of mixed product, pre-coat the edge areas with brush and small roller. But never go further ahead than 10 minutes to the regular rolling, to obtain minimal visibility. Within the pot-life (as soon as possible) depending on the temperature 20 min (30°C) – 40 min (10°C) the product is poured and spread out on the substrate under observation of the coverage rate (+/- 130 g/m2). Attention: the end of the pot-life is not noticeable!
After pouring out, the material has to be spread in the pouring direction with the roller and with the same roller cross to pouring direction, covering approx. 1.35m wide not overlapping the former lane, and backwards covering approx 1.45m with an overlap of less than 5cm. Porous spots where the skin of the sub layer is “opened” by sanding such as after repairs, have to be pre-coated a few minutes before arriving there with the regular roll-out to minimise visibility. Then change to a short piled roller and extend the overlap, in a calm way to approx 10 -20cm. See to it that no glittering shiny spots will be left in the finished paint layer caused by paint pick-up from the surface by the roller. A seamless finish can be achieved if a “wet” edge is maintained during application
Sikafloor-305 W has been designed for interior application and is ideal for use in public areas such as shopping centres and schools, due to its low odour characteristic. It should be applied to concrete substrates, cement screeds and epoxy mortar. Feel free to contact us if you require more information about this product.
IMPORTANT NOTICE: From 24th August 2023, adequate training is required before industrial or professional use of this product. Training can be accessed at: https://www.safeusediisocyanates.eu
Components: | Two Part |
Type: | Water Based Polyurethane Seal Coat |
Finish: | Matt |
Stock Colours: | |
Tintable: | Available in various colour shades and as substrates for local tinting. Please note, bespoke tints are non refundable / exchangable. |
VOC Content: | 140.0g per Litre |
Volume Solids: | 140g per litre |
Suitable Substrates: | As a matt coloured seal coat for smooth Sika ComfortFloor®-Systems, Sikafloor® polyurethanes or smooth Sikafloor® Economy line Epoxies |
Application Method: | See system sheet |
Theoretical Coverage: | See system sheet |
Wet Film Thickness (WFT): | See system sheet |
Dry Film Thickness (DFT): | See system sheet |
Induction Time: | - |
Pot Life: | - |
Touch Dry: | 1 hour at 20°C |
Overcoatable: | Between 18 - 48 hours at 20°C - Before applying Sikafloor®-305 W on Sikafloor®-330 / 327 / 263SL |
Fully Cured: | |
Cleaner / Thinner: | - |
Shelf Life: | Part A: 6 months. Part B: 12 months from date of production |
Packaging: | Available in 10 Kg |