Common disadvantages of PE paint (19) "Don't polish sticky sandpaper"

Disadvantages: don't polish sticky sandpaper


cause

① Improper frosting method.
②The air humidity is too high.
③The amount of curing agent is not enough, and there is remaining resin that did not participate in the reaction.
④The type of resin is different from the type of curing agent, and the crosslinking reaction is not complete.
⑤The temperature is too low and the molecular activity is not large, which will affect its drying.
⑥ A coating film is too thick, or the interval between layers is too short.
⑦The arrangement of sand grains of the sandpaper is unreasonable, so that the sand layer is difficult to fall off when entering the sandpaper, or the sandpaper model is not appropriate.
⑧Insufficient dissolving power of the thinner, unable to fully dissolve the paint, so that the resin in the paint cannot fully contact with the curing agent to cause a chemical crosslinking reaction.

Solution
①Sand sand along the wood grain in the direction of wood art and science.
② Pay attention to the humidity treatment in the working room, or add an air dehumidification device.
③Strictly require the accuracy of the ratio, try to avoid adding or subtracting paint or curing agent at will.
④Choose matching curing agents that can fully react and crosslink.
⑤Increase the indoor temperature or extend the drying time.
⑥Using quantifiers or multiple constructions to extend the interval time between repeated operations.
⑦Select sandpaper with reasonable arrangement of sand grains or appropriate type.
⑧Choose matching diluents with strong dissolving power.