TR90 glasses frame treatment agent bottom coating enhanced TR90 material glasses frame spray dual component paint adhesion

The TR90 substrate and TR90 and TPE, TPU injection molding stitching are widely used in the glasses frame. The surface is usually sprayed with PU surface paint or other dual -group paint. In order to meet the requirements of its weather resistance, the requirements for the combination of adhesion between the paint and the glasses frame are also very strict. However, in most cases, after the TR90 material glasses frame is sprayed, the adhesion test is prone to paint problems. The general solution of the spraying industry is the attachment of the painting film of the coating paint film on the glasses frame substrate. Strong.

Problem phenomenon:

After spraying dual -component paint on the surface of the TR90 material frame, the paint is dropped from hundreds, bending, and knife testing. According to the requirements, after using the TR90 treatment agent bottom coating, you need to spray the surface paint for one day. Demand.

Cause Analysis:

The premise of not painting after the spraying dual components of the glasses frame is to ensure that the paint can reach a firm attachment with the substrate, and the test of weather resistance is also a test of adhesion for paint coating. Therefore, the poor phenomenon of lacquer or weather -resistant test coating is caused by poor adhesion.

solution:

Apply the TR90 treatment agent to the surface of the TR90 material glasses frame to bake and dry (can also spray wet), spray dual -component paint, and use the membrane formed by the polymer in the treatment agent to activate the substrate and improve the paint pair of paint pairs The wetting capacity of the bottom material, while forming a covalent key between the paint to achieve the coupling effect. After verification, after spraying the treatment agent, the interval between 18 hours and 24 hours is then sprayed with dual group paint hundreds and knives such as a knife.

The generality of the TR90 treatment agent:

理 Sheng Sheng TR90 treatment agent is suitable for solving TR90 materials, TR90+TPE, TR90+TPU, PCTG, PETG, PC, PEI, water floating material and other glasses.

TR90 glasses frame treatment agent bottom coating enhanced TR90 material glasses frame spray dual component paint adhesion

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