The invention discloses a special uniform curing
powder coating for suction
coating of the inner wall of a
pipe fitting and a
coating method of the special uniform curing
powder coating, relates to the technical field of pipeline anti-
corrosion coatings, and aims to solve the problem that the whole anti-
corrosion performance of the
pipe fitting does not reach the standard due to non-uniform coating and incomplete curing in the coating of the inner wall of the existing
pipe fitting. The paint is composed of 400 g of one-step
epoxy resin, 200 g of two-step
epoxy resin, 80 g of a curing agent, 10 g of an auxiliary agent, 28 g of
pigment, 3 g of an
accelerant and 279 g of filler. The
epoxy value of the one-
step method epoxy resin is 0.4 to 0.5 eq / 100g; the epoxy value of the two-
step method epoxy resin is 0.1 to 0.2 eq / 100g; the curing agent is an amine curing agent, and a microcapsule type latent accelerator accounting for 5-10% of the
mass of the curing agent is dispersed in the curing agent. The
powder coating has the advantages that the flowability and the leveling property of the
powder coating are effectively adjusted, the sagging phenomenon is reduced, the
curing time is shortened, and uniform curing is ensured.