Contact: Cheng Huiqiang
Address：No. 333, Jinxian Road, Jinjiaba, FENHU Town, Wujiang District, Suzhou City, Jiangsu Province
Foaming is often encountered in the construction of anticorrosive tapes. Although there may be many kinds of foaming, the main common reason is the presence of damp steam or other steam in the coating. Because the glue layer is heated in the morning sunlight, and then under the conditions of low temperature and humidity at night, when the steam in the anticorrosive layer expands due to the increase in temperature, it usually foams first. Foaming has seriously affected the appearance of the anticorrosive layer. Today, I will specifically explain the reasons for foaming in the construction of anticorrosive tape and the solutions:
一分彩First, let's talk about the existence of wet steam foaming in the coating mentioned above: this solution is to remove the water before winding the anticorrosive adhesive tape, and try to wind it up after the temperature rises, and then dry it in the sun. This eliminates the need for water vapor to remain and cause foaming.
2. The tensile force during the construction of the anticorrosive adhesive tape is not tight enough, so that the air between the steel pipe and the tape is not squeezed out. After the sun exposure, air bubbles are more likely to appear.
Natural gas station flange anti-corrosion protection.jpg
Solution: Tighten the polyethylene anticorrosive tape as much as possible, keep the tension as consistent as possible, and do not loosen it for a while.
3. Corrosion and blistering: Chemical substances that generate a chemical reaction between the primer and the glue layer cause blistering. Improper primer and adhesive tape layer, anti-corrosion system may provide proper adhesion for high-performance coatings due to lack of adhesion or physical properties, causing some solvents to detach from the substrate and swell.
一分彩Solution: Try to use the anti-corrosive primer that comes with the anti-corrosive adhesive tape, avoid using the unqualified primer with corrosion, and do not use the chemical primer.
一分彩The reason for the foaming of the anticorrosive layer is more complicated. The above are some solutions to the three kinds of foaming problems that often occur. I hope that friends can strictly control to avoid foaming during production and anticorrosion construction, so the appearance is flat Anticorrosive coating.
Contact: Cheng Huiqiang
|Contact : Li Cong|
|Address: No. 333, Jinxian Road, Jinjiaba, Wujiang District, Suzhou, Jiangsu|