How to treat the substrate surface before applying glue?

The base material area in contact with the sealing potting adhesive must be kept clean and dry and free from dust, dirt, rust, grease and other pollutants. The porous substrate must be cleaned with clean white lint free cotton cloth and solvent. Wipe the residual solvent with a clean dry cloth as soon as possible before evaporation. Before applying glue, cut the nozzle of the rubber cylinder, install the nozzle, and cut the nozzle to the required size. Sealant can be applied as dots or layers, and can be cured only when contacting with water in the air.