The Sanding and finishing of timber flooring is a very important process to the overall performance and appearance of the timber floor. The timber floor finishes create lasting beauty and require the minimal care but it needs to choose the proper finishes for protecting timbers from wearing, dirts and moistures.
Some reasons people have for refinishing is includ;
• Floors completely worn and have deep scratches
• Many old floors are sanded after the previous coverings are removed and suitable wood is found hidden beneath.
• Want to change the color of their timber floors
Floor sanding usually involvies these stages; Punching nails & Putty, Cleaning & Protection, Sanding - Level / Rough Sanding, Edge sanding, Finish sanding using a rotary sander and Coating the floor.
Punching Nails & Putty
The old timber floors have plenty of nail heads so that all nails are punched below the surface for the sanding machines and customer's safety. This can reduce gaps and creacking sounds between the floor joists and timbers.
The punched nail holes can be filled with proper timber fillers.
Cleaning & Protection
The floor should be thoroughly cleaned and free from dirt, grit and debris. During the sanding and finishing process, people can not be impermissible to the working area.
Sanding - Level & Rough sanding
The level or rough sanding will vary based on the condition of the floor. If the floor is old and uneven, then, we will first need to sand with level sanding but if the floor is even and has good leveling condition, that can be started with rough sanding.
Level Sanding using 24g / 30g / 40grit paper Rough Sanding using 40g / 60grit paper
The sanding machine will not be able to sand the boards along the edges of the room, in corners or areas of reduced access such as wardrobes etc. In these areas the boards need to be sanded level and generally blended into body of the floor. For these areas an edge sander is used.
After the rough and edge sanding, we make the floor surface very smooth using 60g / 80g / 100g / 120grit papers. The final sanding is carried out using a belt sander and a rotary sander with 100g / 120g ~ 220grit papers or screenback.
Coating the Floor
There are a number of coating systems available on the market. We offer three types of floor finishes - oil based coatings, solvent based coatings and water based coatings.
Oil based coatings are for customers who want their floors to to look natural and rich in color. It is generally cheaper than other coatings. It also requires more maintenance than other coatings and it needs longer drying time than other coatings.
Solvent based polyurethane coatings have higher durability and has better results than other coating system but it has a strong smell and high toxicity levels for human beings during the curing periods. Another downside for timber is the yellow color appearing and making more edge bonding problems than other coatings.
Water based coatings are healthier products than other coating systems but it is more expensive than other coating systems and if customer wants to get higer levels of gloss effect, it may require up to 4 or more coatings.
We do normally apply three coatings for the job but when customer requests for 4 or more coatings, that will incur extra charges.