Gloss problem in wood finishing.
In finishing world, the term of gloss or sheen is meant by the measurement of lustrous, shininess or reflecting ability of a surface. The gloss is scaled from 0 sheen to 90 sheen. The highest gloss or the full gloss is the 90 sheen when the surface reflect all (most of) the light that come to the surface. While the lower gloss is the 0 sheen, when the surface absorb all of the light received. Basically the high gloss is resulted by a flat, even and smooth surface, while the uneven and rough surface will give the low gloss. See our previous article; gloss in the wood finishing.
Gloss is an important element in the modern finishing. The gloss will determine the finishing look; the finishing with same color will give different impression if it has different gloss. The finishing appearance at the furniture product always needs appropriate gloss instead or finishing color. For example the carved furniture, the ornamental furniture or the antique furniture usually need the low or medium gloss finish. While the high gloss is more proper to the minimalist and the simple furniture.
Now the gloss at the wood finishing can easily be managed by the selection of the top coat. The top coat as the final layer of finishing is available in many sheen. The finishing people can use the top coat with the right sheen according to the finishing requirement.
But as a finishing people, sometime we face some problems about gloss or sheen in the finishing process. The gloss could be too low, too high or inconsistent in the finishing. Here some tips to handle the gloss problem in the wood finishing.
1. The gloss is too low.The low gloss is caused by too much matting agent in the film, uneven film layer and too thin film thickness. Here some tips to solve this problem.
- Always does a good agitation to the top coat mix
- The coating film is too thin
- A good spray technique.
2. The gloss is too highGloss is too high is usually caused by lack of matting agent content in the film layer, or too thick film layer. Her some tips to solve this problem.
- Do a good stirring to the mixture of top coat.
- Be careful when we use retarder.
- Avoid too thick coating film.
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