When painting solid wood furniture paint, many customers find that wood paint is not evenly brushed and does not achieve the desired effect! In fact, a large factor is because the customer did not first deal with the residual oil, dust, wood thorns and other residues on the furniture substrate. Caused by dirt, today we will sort out some common substrate problems and solutions for painting furniture paint, so that you can better achieve the effect of furniture paint, and avoid the occurrence of paint disease to affect the normal use of furniture!

1. Deburring and burr of furniture substrate

Alder burrs and burrs are small fibers on the surface of the wood. Generally they fall on the surface of the wood and tube holes. Sanding cannot completely remove them. When the wood is wet, the burrs and burrs will stand up, making the surface rough and uneven, resulting in uneven coloring.

Removal method: Wet the wood first, then dry it and sand it, and apply a closed primer on the wood surface. After the wood burrs and burrs are erected, grind them. Do not use too much force, otherwise new wood burrs or burrs are likely to occur.

2. Degrease furniture

一定 Before applying furniture paint to wood, it is necessary to remove the oil contained in the wood, otherwise it may easily cause poor curing of the furniture paint and reduce the adhesion of the paint film. The common removal methods are as follows.

1, solvent dissolved

The wood has a lot of local oil and grease, which can be wiped with solvents. Large areas can be wiped with solvent-soaked wood shavings. The grease effect is better at high temperatures. The disadvantages are high cost, toxic and flammable solvents, and great safety risks.

2, lye washing

涂 Apply the lye to the oil and grease, and wash it with 2% sodium carbonate solution after 3 to 4 hours. If it is not cleaned, the wood will become darker. Disadvantages: Not suitable for light or wood decoration.

3. Closed primer

In order to prevent the grease from continuing to ooze deep in the wood, you can use a sealing primer for sealing. The earliest used was shellac, now mostly polyurethane primer.

4, Nail Eye, Worm Eye

For nail holes and worm eyes that are prone to exuding grease, use excavation and degreasing. Pay attention to the direction of the wood fibers. When repairing, be sure to fill in.

3. Decontamination of furniture surface, keep the furniture surface flat and clean

Wood is inevitably left with dust and dirt before processing, which will seriously affect the uniform coloring of furniture paint decoration, film curing and adhesion.

The surface dust can be cleaned with an air compressor. Do not use a wet cloth to prevent dust from getting between the grains. The dirt can be wiped with alcohol and then washed with water. After drying, use sandpaper to sand the wood grain.