Direction of Work and Different Sanding Treatments.
1. The direction to be followed for the individual sanding treatments depends on the type and design of the floor and the main source of light entering the room. Forward sanding should always be performed in the direction of incidence of light.
2. Wood floors require three sanding treatments; the initial sanding is performed using 36 grit, the secondary operation with 60 grit and the third with 100 grit sandpaper.
1. Put approx 300ml of extra fill into a bucket and add approx 50-60g of sanding dust from the previous sanding. The consistency can be changed by adding more sawdust to fill larger cracks etc
2. Stir the extra fill and sanding dust thoroughly with a wood stick in the bucket until you have a fluid mass. This filling mass is approximately the same colour as the wood and is highly likely to be a better match then any filler paste that you buy off the shelf.
3. Apply this extra fill mass to the floor and use the flexible spatula to distribute it evenly. Cleanly remove any excess materials immediately afterwards to minimize the amount of time and effort required for the fine sanding operation to follow. Avoid the formation of pools; push away any pools which might form with the spatula.
4. As soon as the extra fill becomes difficult to work, use the spatula to return the remaining filling mass to the bucket. Then put some fresh extra fill and 10% sanding dust into the bucket. Stir this until the mass becomes fluid once more. This mass is then applied as previously described.
5. Continue to work in this way until the whole of the floor area has been treated. Should larger joints not yet be satisfactorily filled, it is possible to partially rework such areas.
6. Then allow the floor to dry for approx 30 mins.
1. After the extra fill has dried approx 30 mins you need to sand the floor using a 100 grit sand paper.
2. Once that has been completed then a final sand using a 120 grit sandpaper to give a buff sand finish.
Application of the Base Coat
1. After completion of the final sanding operation, the floor surface should be cleaned thoroughly using a vacuum cleaner.
2. Now apply an even coating of the extra base to the total floor area using a roller. Make sure no pools form and that the floor assumes a uniform appearance. It is best to begin on the side with the main incidence of light and to work away from the light. In this way it will be possible to keep an eye on the floor during work and immediately correct any possible problems as they arise.
Application of the First Coat of Lacquer
1. During lacquering operations, avoid exposing the areas to be treated to direct sunlight as this can result in the formation of blisters.
2. In order to ensure an even application of the lacquer of your choice, it is best to use a 10mm pile roller. Start work on the side of the incidence light and work away from the light. Work in tracks of approx 1m in width. Apply the lacquer with the roller at right angles to the incidence light and subsequently work it out towards the light. Avoid forming pools; to cover an area of 8-10 m2 you will require 1L of lacquer for the first application.
3. In order to ensure optimum drying conditions for the lacquer, a normal room temperature should be created. Windows should always remain closed to prevent drafts. On no account should the floor be walked on before commencing the next stage, the floor should be protected from dust and particles of dirt.
Intermediate Sanding and the Second Coat of Lacquer
1. After approx 4 hours have elapsed, the first coat of lacquer is sanded over using 150 grit sandpaper.
2. Make sure that the total floor surface is sanded over during the intermediate sanding operation. Move the machine swiftly to prevent over sanding (never sand on the spot) when the work has been completed, the floor should be smooth and uniformly matt in appearance.
3. Before beginning to apply the second coat of lacquer, thoroughly remove any dust occurring during the intermediate sanding operation using a suitable vacuum cleaner. Then wipe lightly over the floor with a damp cloth.
4. Proceed with the application of the second coat of lacquer exactly as for the first coat. The quantity required is also identical.
5. The floor can be walked on 12 hours after the application of the second coat of lacquer at the earliest and the furniture can be returned to the room if caution is used.
6. Until the lacquer has hardened completely - after approx 7-10 days the wood floor should neither be vacuumed or cleaned. After this hardening period an initial care treatment should be performed using wood floor polish satin or matt.