水性木器漆涂裝常見問題及解決對策
漆膜起皺
一(yi)些(xie)施(shi)工(gong)(gong)人(ren)員在(zai)使(shi)用水(shui)性(xing)木(mu)器漆(qi)進行(xing)平涂(tu)(tu)(tu)時,采取一(yi)次性(xing)厚涂(tu)(tu)(tu)方(fang)式,結果豐滿(man)度(du)是極好(hao),但漆(qi)膜(mo)表面出(chu)現起皺現象。產生(sheng)(sheng)問題的原因(yin)是厚涂(tu)(tu)(tu)的水(shui)性(xing)漆(qi)漆(qi)膜(mo)在(zai)高溫(wen)下(xia),漆(qi)膜(mo)表層迅速(su)干燥成(cheng)膜(mo)而厚厚的內層卻干燥緩慢,在(zai)干燥過程中漆(qi)的流動產生(sheng)(sheng)張力差,導致(zhi)最終成(cheng)膜(mo)表面不平,即起皺。因(yin)此施(shi)工(gong)(gong)時,不要一(yi)次厚涂(tu)(tu)(tu),特別不要以直接傾(qing)倒的方(fang)法,仍應采取薄涂(tu)(tu)(tu),保證涂(tu)(tu)(tu)層均勻(yun)干燥成(cheng)膜(mo),達(da)到漆(qi)膜(mo)平整效果。
漆膜附著力差
夏季氣溫高,部分地區空氣中(zhong)濕(shi)度又大。一(yi)(yi)般的(de)水性木器漆施(shi)(shi)工(gong)(gong)(gong)(gong)后(hou),會發現涂層(ceng)層(ceng)間(jian)粘(zhan)接不(bu)牢,產生附著(zhu)不(bu)良(liang)(liang)現象,出現層(ceng)與(yu)層(ceng)之(zhi)間(jian)相互剝離,甚至可以像(xiang)撕(si)皮一(yi)(yi)樣整片(pian)撕(si)下。造(zao)成漆膜層(ceng)間(jian)附著(zhu)力(li)(li)不(bu)良(liang)(liang)的(de)直接原(yuan)因(yin)是(shi)(shi)油漆工(gong)(gong)(gong)(gong)施(shi)(shi)工(gong)(gong)(gong)(gong)時,層(ceng)間(jian)沒有打磨(mo)所致。由于油漆工(gong)(gong)(gong)(gong)為趕時間(jian),在下一(yi)(yi)道工(gong)(gong)(gong)(gong)序時,未經打磨(mo),而是(shi)(shi)直接涂刷于上一(yi)(yi)道漆膜上,加上氣溫高,濕(shi)漆膜與(yu)干漆膜界面(mian)形成牢固(gu)層(ceng)所需時間(jian)不(bu)足(zu),使附著(zhu)力(li)(li)受影響。因(yin)此,要(yao)求施(shi)(shi)工(gong)(gong)(gong)(gong)人員在高溫天氣施(shi)(shi)工(gong)(gong)(gong)(gong)時,每(mei)層(ceng)間(jian)要(yao)進行充(chong)分打磨(mo),增(zeng)進附著(zhu)力(li)(li),同時施(shi)(shi)工(gong)(gong)(gong)(gong)安排在早晚為宜(yi),確保產品的(de)內(nei)在質量得以體現。
漆膜開裂
這個現象也是夏(xia)天施(shi)工(gong)中(zhong)較(jiao)為(wei)常見(jian)的(de)。由于在施(shi)工(gong)的(de)過程中(zhong),漆層(ceng)涂膜(mo)太厚,導致表(biao)層(ceng)干(gan)燥成膜(mo)速度(du)快,而厚厚的(de)內層(ceng)卻干(gan)燥緩(huan)慢,直接造成了底漆開(kai)裂等現象。同時,也要注意板材的(de)質量問題,建議選購穩定性好的(de)板材。
漆層發白
主要是施工(gong)環(huan)境濕度(du)太大,施工(gong)過程中涂膜太厚等原因造(zao)成的。因為夏季氣(qi)(qi)溫高,部分地區空氣(qi)(qi)濕度(du)較(jiao)大。漆(qi)(qi)(qi)層的表干(gan)時間隨著氣(qi)(qi)溫的升高而加快,但是實(shi)干(gan)時間卻較(jiao)為緩慢;油(you)漆(qi)(qi)(qi)工(gong)在(zai)施工(gong)過程中,可(ke)能忽略了實(shi)干(gan)時間,而在(zai)漆(qi)(qi)(qi)層表干(gan)之后,就立刻上另一道漆(qi)(qi)(qi)。導致(zhi)底部漆(qi)(qi)(qi)層未(wei)完全實(shi)干(gan)。在(zai)下(xia)雨天或者濕度(du)大的天氣(qi)(qi),容易產生漆(qi)(qi)(qi)層發白的現(xian)象。
總之,在夏天使用水性木器漆進行裝修的過程,要重點把握施工過程中漆膜的厚度,建議采用薄涂多次,另外,要掌握好施工的間歇時間,一定要在漆層實干的情況下,再進行下一道工序施工。確保水性木器漆的施工質量。