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anti coating defect and 失效形式, causes analysis and anti measures (珍藏版 lower )
industry: water property coating material
29, Rippled Coating波状 coating
in paint surface generate 波纹效应.
can can causes:
large 风吹 潮 wet paint surface 会引起波纹. this type of 情况发生 in lower 部时, 波纹就会象 small type 钟乳石样象垂 lower. can can is due to technology 不佳造 formed.
预 anti measures:
in conditions lower coating 漆. use positive 确 施工 equipment and process.
30, Runs流挂
一层 paint types narrow toward lower 运动, from a large amount of paint in obvious 出现, 如裂缝 and 洞, in surface already solid rear, paint flow.
can can causes:
degree use paint, degree use dilute agent, positive 确( or 缺乏) solid agent, or process 差.
预 anti measures:
using/adopting positive 确 施工 technology and recommendation dry film thick degree.
31, Rust Rashing sheet/slice 锈
出现 in coating film surface fine small 锈点, usually is thin upper. very fast in surface 蔓延开, formed formed sheet/slice difficult 以辨别 mono 锈点. can can is coating formed.
can can causes:
low film thick, usually coarse degree also high.
预 anti measures:
ensure 底漆施工 can cover/cap surface coarse degree combined film thick, surface coarse degree is high.
32, Rust Spotting点锈
出现 in coating film surface 一 锈点. usually mono 出现, very fast degree increase.
can can causes:
low film thick ( very 象Rust Rashing generate causes ). and coating 点( very 象Rust Rashing generate causes ). can can structure surface defects (如叠 sheet/slice and material )而造 formed. high surface coarse degree 导致峰顶未 by coating film cover/cap 并引起锈蚀. can can is is coating film in metal 污染, ratio abrasion material and other.
预 anti measures:
ensure 底漆施工 can cover/cap surface coarse degree combined film thick. using/adopting thick coating and low surface coarse degree. anti coating to powder and other 污染.
33, Rust Staining锈班/锈痕
from 裸露钢材锈蚀 generate metal oxidation material coating surface color.
can can causes:
锈蚀 surface generate water to coating surface. 锈痕发生时, 锈污染 water to its it 部位. usually main/primary is difficult 看而不 is types coating defect. coating 本身没 has defect, is by color.
预 anti measures:
ensure good design and coating maintenance.
34, Sags凹陷
凹陷 is 由一层 coating material toward lower 运动引起, it in application rear 不久出现. has relatively thick lower non-uniform 区域. it usually in surface local very obvious, in heavy lower, can can by is 帘挂.
can can causes:
coating material degree 施工. dilute agent degree use. positive 确( or less ) solid agent. 差 施工 process. in 极端情况 lower, can can is coating material formulation issues.
预 anti measures:
using/adopting positive 确 施工 technology, combined formulation product.
35, Settlement沉底/沉 drop
由基 material and material formed solid formed in packaging container inner phenomenon. mixed combined rear or in 发生 沉 drop can different coating film property can different and color different.
can can causes:
旧 库存货. heavy material coating material. positive coating material formulation. zinc powder can can in issues.
预 anti measures:
use in has inner product. using/adopting positive mixed combined process. in spray coating will paint mixed combined and 搅拌.
36, Skinning结皮
in container inner paint surface formed 一层皮.
can can causes:
缺乏 anti agent. use 不密闭 container. hot conditions. 经常出现 in separation use 罐子里.
预 anti measures:
use anti agent. according to ring conditions 贮存.
37, Solvent Lifting solvent agent 咬起/咬底
漆 film surface 隆起. and 起泡. surface and most coating 破裂.
can can causes:
using/adopting combined coating material system. upper coating material can and front low solvent agent coating material reaction strong/high solvent agent. in front coating separation solid front coating.
预 anti measures:
using/adopting positive coating material sleeve/set, coating time and material. versus property experiment/testing.
38, Solvent Popping solvent agent 泡
surface in rear very fast solvent agent 泡
can can causes:
不 positive solvent agent mixed combined. more surface. positive ring conditions or surface temperature degree high.
预 anti measures:
using/adopting positive coating material sleeve/set and material. ensure positive 确 施工 technology and ring conditions.
39, Staining变 color /染 color
coating system color
can can causes:
coating to solid or liquid 体导致变 color or color.
预 anti measures:
避免接触导致变 color /染 color solid or liquid 体. or use deep color coating make color 看不出.
40, Stress Cracking应 force cracking
coating can 见裂缝, can deep 达至底材.
can can causes:
应 force cracking can 归因于 surface 运动, aging, water and water, hot ring and coating flexibility property 缺乏. film thick, cracking can can can can property large. 经常出现 in 焊缝周围 and 转角处.
预 anti measures:
using/adopting positive coating material system, technology and dry film thick degree. or use flexibility property more good coating material system.
41, Undercutting film lower 腐蚀
漆 film lower can 见腐蚀, by is Creep. in film lower 传播, will coating from upper 顶起. heavy 时导致起泡, 剥落, and can 见 锈蚀.
can can causes:
施工 in already 腐蚀 底材 upper. machine loss or 底漆缺失导致锈蚀蔓延. can in that difficult separation surface treatment and coating material design and difficult 部位发现. can can is is repair.
预 anti measures: using/adopting positive 确 施工 technology and repair 程序. using/adopting good 底漆.
42, Wrinkling起皱
coating film drying process in surface generate 皱纹.
can can causes: Common solvent agent type paint. can front coating separation solid front coating generate. coating film ultra- thick. especially is alcohol acid coating material.
预 anti measures: using/adopting positive coating sleeve/set and coating material. coating material manufacturing 商 建议 ensure separation mixed combined, application and solid 化.
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