How to prevent and deal with polypropylene anti-corrosive tape bond not firm
1, polypropylene anti-corrosive tape before construction, use sand blasting of steel pipe derusting, as far as possible to achieve high in derusting category. < br / >
2, if there are no conditions for sandblasting derusting, after remove rust steel preheating, with sand paper in steel pipe grinding polishing of careful as far as possible, and then in besmear brushs paint. < br / >
3, primer part A and part B must mix stir well, if there is no mixing and curing agent local also can appear rickety phenomenon. < br / >
4, if the polypropylene anti-corrosion tape no conditions at the scene, can only manual derusting words of advice after cleaning with some fine sand in the steel pipe surface friction again, so that we can remove the rust and oil stains on the surface of the steel pipe. < br / >
5, polypropylene anti-corrosive tape besides derusting, also need to steel tube to remove moisture, preheating, etc. < br / >
that is about the prevention and treatment of polypropylene anti-corrosion tape bond not firm, in general, the main reason why this happens is to use the method of improper, in actual use, therefore, we should be pay attention to, mixing the primer, necessary cleaning job, and after the paste to tide, preheating, etc. , so that it can solve this problem well.
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