Paint common term reachs occurrence reason of explanation and its problem (in the light of spray)
⑴ shedding hangs: Show coating is applied at vertical plane, as a result of its anti-current hangs a gender to differ or Shi Tu is undeserved, paint film heavy panel wait for a reason and make wet paint film is down shift, form the brim below all sorts of appearance is thick and inhomogenous coating. Cause a cause: ① operation is bad, gun of spray gun mouth is too big; ② coating is too rare; ③ besmears peace and tranquillity of the surface that hold thing is rectified; ④ coating is too thick, thin brush many times.
⑵ is hoar: Show glazed coating is dry in the process, ivory appearance presents sometimes on paint film. Cause a cause: ① moisture chroma is exorbitant; ② dissolvent is analytic power is insufficient; Content of moisture of itself of ③ base material is exorbitant.
⑶ is corrugate: The furrow of the type of small amplitude ripple that shows paint film presents much rarer law, it can reach a share greatly or all film is deep. Cause a cause: Speed of dry of Qi Gan of ① priming paint, face is abhorrent; ② coating is too thick, viscosity is exorbitant; ③ nozzle did not adjust good; ④ PU kind coating solidify agent is added too much, dry rate is too rapid.
⑷ orange skin: Show paint film presents the exterior morbid state of exterior of orange skin condition. Cause a cause: ① shedding smooth sex is bad; ② temperature is low; ③ NC kind thinner overmuch or do not deserve to cover; ④ base material rough or processing is bad.
⑸ bites a bottom: Point to Tu Jitong is applied to plant on dry paint film or differ kind of coating when, the dry film that makes its fall during Tu Huo is dry is applied to produce bate in coating, apophysis or the phenomenon that break away from from bottom material. Cause a cause: The lacquer of priming paint knead dough that ① does not deserve two kinds to cover (normally content makes priming paint high) ; ② bottom unfinished is completely dry above lacquer; The coating of ③ priming paint is too thick.
⑹ pinhole: Point to the stoma that existing to be similar to pinprick in paint film. Cause a cause: ① mix is even, coating interior has air; ② smeary water divides pollution; ③ is besmeared substance appearance is rough whole; ④ gush is too thick, solvent is bad to volatilize.
⑺ is bubbly: The gas such as the air that points to coating to be formed in the process that apply besmear or solvent steam perhaps holds some bubble concurrently. Cause a cause: ① is besmeared content has moisture content; ② coating has moisture content; ③ air humidity is big; ④ is smeary; Agent of ⑤ thinner, solidify does not deserve to cover; ⑥ agitate is inhomogenous, the surface is rough.
⑻ surface is rough: Cause a cause: ① construction environment is too dirty, not quite clean; The itself in ② besmear content is fineness and insufficient, be besmeared substance appearance has theft; ③ coating is insufficient.
Previous12 Next