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Views: 9 Author: Site Editor Publish Time: 2021-01-14 Origin: Site
The key to the construction quality of spraying polyurea lies in the substrate, and the substrate is divided into two types: metal substrate and concrete substrate, but no matter which kind of substrate, we must consider its anti-corrosion and waterproofing. So, what are the ways to deal with the anti-corrosion and waterproofing of the polyurea sprayer substrate? Next, let us know about it.
The anticorrosive and waterproof treatment of the base material of the polyurea spraying machine can be shot blasting the concrete preforms or use an angle grinder and a high-pressure water gun to remove the dust and scum on the surface, and then use the caulking material to level the surface after the base material is completely dry. Moreover, the caulking part needs to be smoothed with an angle grinder after the caulking material is cured, and then shovel to remove the surface dirt, brush or roll a matching primer for use, and the primer recoating distance is up to 24 Hours, the shortest is 3 hours.
The treatment method for the metal substrate of the polyurea spraying machine is to blast the substrate to Sa2.5 level first, and level the defective parts such as welds with epoxy putty, so that the entire substrate can be smoothly transitioned, and the epoxy putty After curing, use an angle grinder to smooth, and then clean the substrate, roll or brush two matching primers.
All in all, polyurea spraying machine uses special functional resin modified semi-polyurea to obtain semi-polyurea with excellent functions, wide use and high cost performance, which meets the diversified requirements of the national economy, and its development scope will be more and more wide.
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