industry: water property coating material

14, Cracking cracking

dry film through less coating separation 离, formed can 见 裂缝, can to sheet/slice. cracking has multiple 形式, from fine to heavy cracking

can can causes:

cracking usually is and force related defect, can 归因于 surface 运动, aging, absorption and understanding water separation, and coating elastic property. thick film high, cracking can can property large.

预 anti measures:

use positive coating system, technology and dry film thick degree. or 者, using/adopting flexibility property good coating system.

15, Cratering（针孔, 孔坑）

in film upper formed 碗状凹陷. need and cissing shrink versus mixed 淆.

can can causes:

coating material drying process in, inner gas or solvent agent bubbles 爆裂, lower small 陨石坑. coating has time 流平形 formed uniform film.

预 anti measures:

improvement spray coating technology, coating 装雾喷层, in process in 避免空 gas 进入. according to coating material manufacturing 商 建议添 add dilute agent.

16, Crazing crazing

and checking fine versus 似. 但裂缝 usually more wide, coating film more deep.

can can causes:

施工 temperature degree low, and front coating sleeve/set, aging or high film thick.

预 anti measures:

施工 thin coating, add slow dry solvent agent, coating material system and drying conditions is positive 确, using/adopting positive coating material system, 检查配 sleeve/set property.

17, Crowsfooting爪形皱纹

in film upper formed types similar 于乌鸦 脚印 small 皱纹.

can can causes:

usually is is surface drying fast formed 一层皮肤, solvent agent slow slow from lower 层挥发而形 formed 皱纹.

预 anti measures:

施工 thin coating, add slow dry solvent agent, coating material system and drying conditions is positive 确.

18, Delamination层间脱离

coating between 丧失附 force

can can causes:

若 coating material sleeve/set property issues, 层间脱离 this type of defect generally and surface treatment defect and 施工不当 has 关. coating 间 污染 material, ultra- 覆 coating time, 施工于 has gloss surface.

预 anti measures:

ensure 层间没 has material, 遵循建议 覆 coating time. for has gloss surface 进行打 abrasion 清洁.

19, Fading褪 color

当暴露于 cationic light / large gas lower 时, coating material color or decrease/reduce. can can gloss degree 丧失. in certain lower, it can can similar 于chalking powder 化, has powder surface. color toward in has water separation lower accelerated.

can can causes:

不 positive 确 颜 material, use unstable has machine material, large gas 污染, more 孔基材.

预 anti measures:

using/adopting resistant outer and resistant color coating formed system, use light stabilization property good coating material material.

20, Flaking sheet/slice 落, 剥落

一 types 附 失效 形式. coating film from upper sheet/slice 状脱落. Common 于木质 and zinc upper.

can can causes:

use positive coating material system. for 特定底材（如 has color metal or zinc parts ）不进行预处理 or is positive 确 预处理. 太差 施工 technology. can can 归因于 coating material and 底材 膨胀 and shrinkage rate 差异（如木材）. can can is coating material system aging 结果.

预 anti measures:

use positive coating material system and surface 预处理 methods

21, Grinning露底

due to coating material cover/cap force 不足, its lower coating surface still can 见. this has by is “grinning-through遮 cover/cap 不足”. deep color coating in shallow color upper 时经常 can 见.

can can causes:

面漆太 thin. 面漆 不 transparent degree and cover/cap force 不足. lower coating color strong/high.

预 anti measures:

每道施工 combined dry film thick degree. using/adopting transparent property coating material.

22, Heat Damage hot loss 伤

漆 film color, and / or 起泡, and generally film 退化.

can can causes:

因 is 背面燃烧, welding high temperature 效应.

预 anti measures:

ensure has welding and 燃烧都 in coating front formed

23, Impact Damage impact loss 伤

from 撞击点引发 裂缝.

can can causes:

for versus for low coating formed impact loss 伤. 经常出现 in glass fiber reinforcement plastics upper. 也发生 in 钢因撞击而 deformation 时候.

预 anti measures:

避免 impact loss 伤.

24, Intercoat Contamination层间污染

can can causes:

污染 can can is due to separation 冲洗, salt workshop aging or 附近操 as in 沉积.

预 anti measures:

coating front need fine and testing surface, has need, use water 冲洗.

25, Mud Cracking泥裂

dry film surface 看起 呈 drying 泥巴样. 裂缝呈现网格状, has can large small and amount.

can can causes:

generally lower, 诸如无 machine zinc or water property this category of material amount large easy 出现. ultra- thick coating system good 会发生.

预 anti measures:

仅施工 recommendation coating thick degree （不 need ultra- thick ）. using/adopting combined coating material recommendation technology.

26, Orange Peeling桔皮

一 types uniform, has appearance, especially is spray coating coating, film surface 就像一 桔子皮

can can causes:

漆 film 不流平. usually defect technology, positive solvent agent mixed combined, or high property 引起.

预 anti measures:

using/adopting positive 确 施工 technology and combined formulation coating material product.

27, Peeling剥落

similar 于Faking sheet/slice 落/脱落, tube/pipe more 会发生于 soft, new coating, is force already 丧失, can 象一张皮一样 from or lower coating upper lower.

can can causes:

剥落 is is coating or coating material sleeve/set make film adhesion strong/high degree reduce.

预 anti measures:

using/adopting positive coating material system 施工于清洁而未受污染 surface upper.

28, Pinholes针孔/ small 孔

wet film in and drying process in, is gas or gas bubbles rear in coating film solid front has 流平而形 formed micro small 孔隙.

can can causes:
coating film in solvent agent or gas 体滞留. coating 于如富 zinc 底漆, silicon acid zinc, hot spray coating metal coating and other more 孔底材 upper Common issues. 针孔也 can can is due to positive 确 施工 methods or positive formed solvent agent mixed combined formed.

预 anti measures:

using/adopting positive 确 施工 technology positive product. positive solvent agent mixed combined material and ring conditions. 检查喷咀

至 surface 距离. application process.