Application points of new antistatic powder coatings
As a kind of powder coating, the new anti-static powder coating can be applied in the same way as ordinary powder coating, but due to its special features, it is still necessary to pay attention to its application in substrate processing, spray construction, baking temperature, etc. Main points.
● Fully mixed: Because the new antistatic powder coating is made by mixing two materials, the uniformity of mixing is the decisive factor for ensuring the stability of its subsequent coatings, and the two materials must be fully mixed.
● Substrate treatment: It is recommended that the sheet metal parts be pretreated (acid-washing and phosphating), or its surface impurities will not only affect the final adhesion of the coating film, but also affect the contact between the conductive material and the substrate and affect the conductivity and surface Powder rate.
● Spraying construction: Pay special attention to the control of coating film thickness during this process.
● Baking temperature: It is recommended to bake completely, because the coating film is only suitable for the diffusion of conductive materials after it is fully baked and melted.
● Sampling test: The sampling test is the key to judge whether the coating is qualified. For the anti-static powder coating film testing, it should be carried out from two aspects: thickness and resistance: resistance should be measured with standardized equipment. If the resistance is too low, you can consider using secondary spraying to correct the coating thickness.
As mentioned above, the birth of a new antistatic powder coating preparation process has greatly simplified the production and application process of antistatic powder coatings, provided a wider space for the application of powder coatings in the field of antistatics, and made many metal materials All can get the anti-static coating effect in a simple way.