Edit scratches in so-called piano paint


The term piano lacquer is used almost inflationarily by dealers and manufacturers of various devices and vehicle interiors. Modern paints, also known as sanding varnishes, are sprayed on several layers. The success with which scratches can be made depends on the gloss level and quality of the polyester surfaces.

Designation comes from historical processing methods

The term "piano lacquer" and its meaningfulness about the quality of the lacquering was coined / shaped by former application and processing techniques. In today's manufacturing, modern polyester paints meet the same coating results that required prior, costly intermediate grinding processes.

As a result, and with respect to scratches, this circumstance means that the chemical paint compositions determine the polishing and repairability. The damage picture resembles that of scratches on high-gloss kitchen fronts or high-gloss tables. The most common difference to the piano lacquer lies in the identical coloring of all layers.

Work results and processing methods

Even though piano lacquers are made of high-quality plastics, they are as difficult as removing plastic scratches. In most cases, it is only an attempt to reveal whether the chosen processing method is gentle and promising. The following factors must be considered:

  • Does the gloss behavior change on and in the processing environment?
  • Are all varnish layers dyed colorfast?
  • Does the hardness of the paint match with polishing and abrasives?
  • Are there special surface sealants such as satin finishes?

When choosing tools and methods, there are some important rules to consider to prevent consequential damage:

  • Do not use any paint-dissolving agents
  • Use polishes in increasing concentrations
  • Do not use skimmed polishing cloths
  • Do not use microfibre cloths
  • Previous thorough dusting of the work surfaces
  • If necessary, "dodge" or "dab off" burrs on the scratch

Test run and temperature effect

For polishing out surfaces known as piano lacquer, only special agents should be used. As far as possible, a test run should always be made in a less visible place. The entire polishing process should be carried out until the finish and the result should be evaluated.

For cleaning between the individual processing phases, moist chamois leather is recommended. Since varnishes change their properties when exposed to temperature, it is important to ensure that the working environment is as stable as possible. The tools and tools should not be too cold or warm.

Tips & Tricks

If you use tap water during intermediate cleaning, pay attention to the lime content. Very hard water adversely affects polishing results. Alternatively, you can use distilled water.


Video Board: YBN Nahmir