本文目录一览:
- 1、开放漆和封闭漆的区别是什么?
- 2、什么是封闭底漆
- 3、5、在汽车的涂装中,车身涂装用二道底漆和封闭漆是什么意思?
- 4、什么叫封闭漆
开放漆和封闭漆的区别是什么?
开放漆和封闭漆的区别是:
1、材料不同
从材料上来看,封闭漆以聚酯漆和水性漆为主,开放漆以硝基漆为主。
2、效果不同
开放漆涂刷过后表面比较粗糙,因为开放漆是一种完全显露木材表面管孔的涂饰工艺,保留了天然木纹的毛孔,能看清木材纹理,给人以木质原始感。
封闭漆则比较光滑,因为封闭漆会全部覆盖木材纹理,涂刷在木质表面后,会把管孔、木材纹理都封闭起来,形成一个光滑的表面,犹如镜面一般。
3、适用不同
开放漆适合导管较深很明显的木材,例如橡木、水曲柳等木材,可以保留木材原始质感。
封闭漆适合导管较细而密的木材,例如桦木、枫木等。
4、性质不同
开放漆:相对封闭漆而言的一种木器涂装工艺。
封闭漆:为喷涂产品表面,木材的自然纹理被漆面掩盖封闭。
5、原理不同
开放漆原理:保留天然木纹的毛孔,突显肌理感。
封闭漆原理:可与底漆、面漆配套使用,可以防止,上一道涂层向下一道涂层转移,起到隔离和封闭作用。
什么是封闭底漆
封闭底漆直接附着在基底上,其上附着有中涂、面涂,起承上启下的作用,良好的涂层系统在层与层涂膜之间没有层的界面,涂料施工要求每道工序之间可以进行有效的相互渗透,整个涂层成为一个整体,封闭底漆是附着在基材上的之一道膜,因而封闭底漆的质量要求很高,有良好的耐水、耐碱性、防水隔离盐碱渗出,有良好的附着力与层间附着力。封闭底漆成分一为由高渗透性环氧树脂液,成份二为专用固化剂,适用于混凝土、木材、水磨石、钢铁等基材表面作封闭底漆。
5、在汽车的涂装中,车身涂装用二道底漆和封闭漆是什么意思?
二道底漆和封闭底漆也可称为中间层涂料, 主要用于腻子与面漆之间的涂层, 同时也用于填补腻子上的细小缺陷、 道痕。 封闭漆用于中间涂层的最后一道工序,旨在避免喷涂面漆后发生与中间涂层咬起、渗色等缺陷。 由于我国这种封闭漆品种较少, 故应用并不十分广泛, 通常是使用头道底漆来代替。
什么叫封闭漆
封闭漆顾名思义,是用漆封闭的意思;封闭底漆起封闭基材气孔毛孔纤维导管的作用,成膜胶状,很难打磨。一般调的稀点。粘度还是高的。二遍底漆一般漆的较厚,便于打磨平整,所以一般调的稠点。好打磨的透明度差点,透明度好的打磨要慢点。所以二便漆又分为分实木底(易打磨)和贴纸底(透明度好)2大类根据厂家生产工艺的不同,上漆的次数也会不同。所以说封闭漆是木材表面纹理棕孔完全被油漆封闭为主要特征的一种喷漆工艺,表现为木材基质表面漆膜丰满,厚实,亮光,表面光滑,封闭漆可以适合所有木材基质。
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