Polishing synthetic resin is not always possible

Sanding and polishing synthetic resin is always a risk. Since the effect of heat on the surface usually causes a visually disadvantageous effect, some synthetic resins can not be polished. A cured resin body is a complex molecular system that is more or less injured by any surface treatment.

Polishing ability due to high quality resins and additives

Even if many manufacturers make the opposite promise, there is always skepticism regarding the polishing ability of synthetic resin. If the synthetic resin is not covered by a protective layer such as a UV seal, for example, it is usually the practical test after complete curing that shows the extent to which polishing is possible.

The ability to polish depends on the type of resin and the composition. The polishing ability can be increased by the addition of appropriate additives. As a rule of thumb, the highest quality synthetic resins will develop good polishability at prices of at least double the cheapest resin product of the same type.

Rays as an alternative to scratching and scouring

With conventional polishers such as microfibers or polishing pastes, cautious polishing attempts can be made in places that are less visible. Most of the "scratching" and "scouring" ingredients, however, rather cloudy on the surfaces of synthetic resins.

In the professional work-up area, for example in synthetic resin floors, jet cleaners are mostly used. Steel balls or other beam substrates enable scratch and abrasion-free surface removal in the micromillimeter range. They do not hurt the resin structure or hardly, but are sufficient for a new gloss effect.

Resin selection and sealing order

If regular polishing of synthetic resin is planned, this property should be taken into consideration when selecting the type of resin and the additives. After resin is dried out and hardened, the polishing ability is fixed and can not be given in the worst case. Here, synthetic resin quickly reaches its physical limits.

In order to successfully polish a new and freshly produced synthetic resin surface regardless of the material specification, a protective seal is recommended. In the outdoor area, a UV protective layer usually has to be applied anyway, which should also pay attention to the polishing properties. With this protective seal, the resin can at least always return to the initial state directly after the fresh potting and setting.

Tips & Tricks

When dry polishing is not successful, wet polishes are sometimes the answer. Try to use alternating wet and dry filter lengths and examine intermediate results.

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