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Surface treatment of aluminum alloy
- Oct 12, 2018 -

Aluminum alloy sheets can be divided into two categories: non-painted products and painted products according to the surface treatment.

1) Non-painted products

(1) It can be divided into hammered aluminum plate (irregular pattern), embossed plate (with regular pattern) and pre-passivated alumina surface treatment plate.

(2) These products are not painted on the surface of the board, and the appearance of the surface is not high and the price is low.

2) Paint products

(1) Classification:

According to the painting process, it can be divided into: spray plate products and pre-roll coated plates;

According to the type of paint can be divided into: polyester, polyurethane, polyamide, modified silicon, epoxy resin, fluorocarbon and so on.

(2) Among the various coatings, the main performance difference is the resistance to ultraviolet light from the sun. The most common coating on the front side is fluorocarbon paint (PVDF), which has strong resistance to UV rays; Or epoxy coating as a protective lacquer. In addition, a protective film that can be peeled off can be attached to the front side.