稀释剂对油漆光泽有什么影响？

Quick answer: A practical additive decision starts with the exact defect: foam, poor wetting, craters, haze, or instability. The best product is usually the one that solves that defect with the safest compatibility window.

油漆本身分为高光、亮光、哑光、平光、无光等。这些都是油漆生产后决定的光泽范围，本文只谈稀释剂对光泽的影响，不能改变油漆本身的光泽。

 

很多人认为稀释剂只是用来稀释油漆的，对其漆膜性能没有任何影响。在施工过程中，他们随意使用稀释剂，不管是用于底漆还是面漆。也有一些人注意将底漆和面漆的稀释剂分开使用，但他们并不区分生产厂家，也不区分快干和慢干稀释剂。

 

本文将介绍稀释剂对油漆光泽的影响，以及现场施工中出现的几种现象。

 

01 稀释剂分为快干型、标准型、慢干型，选择合适的干燥速度可使油漆光泽度高

 

不同季节的油漆制造商会自动提供不同挥发率的稀释剂。很多厂家会将快干稀释剂和慢干稀释剂分开包装标识。这就为现场调整提供了很大的空间。

 

02 溶解能力强的稀释剂可适当增加涂料的光泽

 

稀释剂的作用是稀释涂料，降低粘度，使涂料达到施工所需的粘度，达到最佳施工效果。施工后稀释剂会全部挥发到大气中，很难回收利用。这就是油漆造成环境污染的主要原因，也是大家纷纷用水性漆代替油漆的主要原因。因此，如果符合要求，价格越低越好。

 

稀释过程需要稀释剂提供两样东西：

 

A.稀释剂的溶解能力不能太弱，如果太弱会造成涂料絮凝成团，无法稀释涂料。这个不用多说，很多人都遇到过这样的事件。稀释剂倒入油漆中，油漆和稀释剂分离，上层澄清的稀释剂，下面的油漆缩成一团。而且无论怎么搅拌，油漆都像一团泡泡糖，黏糊糊的，始终不与稀释剂融为一体。

 

B.稀释剂的溶解能力不能太强。过浓的稀释剂会造成涂料中的颜料絮凝，颜料从涂料中析出。这类现象比较隐蔽，很多时候不易被发现。稀释剂的溶解度还可能溶解底层涂料，造成咬底等现象。

 

03 稀释剂对油漆光泽的影响

 

稀释剂添加过多会降低光泽，主要是由于稀释剂添加过多，油漆固含量降低，干膜变薄，漆面不饱满，导致光泽低。

 

04 稀释剂选择不当也会导致漆膜出现以下问题：

 

失光：干燥前漆膜光泽饱满，干燥后光泽消失或漆膜光泽逐渐消失。

 

橘子皮：漆膜表面凹凸不平，外观类似橘子皮、柚子皮。

 

混浊/斑点（银粉漆小斑点）：银粉漆的颜色发生变化，形成一块块或深或浅的色斑，常沿喷漆方向形成不同颜色的条纹。

 

针孔（坑）：由于稀释剂挥发过快，涂刷后来不及补漆，造成针孔状小孔或像皮革毛孔一样。

A practical selection checklist for wetting, leveling, and defoaming additives

Additive selection is usually most effective when the team defines the defect first and then screens compatibility, dosage range, and process stage. That is often much more reliable than choosing only by chemistry family or by a single dramatic lab result.

• Start from the defect, not the additive name: wetting loss, crater, microfoam, and instability often need different solutions even inside the same formula.
• Check compatibility at the intended dosage: the strongest additive can still be the wrong commercial choice if it narrows the process window too much.
• Review the stage of use: some products are most useful during grind, while others matter more during let-down, filling, or final application.
• Balance cure or film quality with defect control: the right additive fixes the problem without sacrificing adhesion, gloss, or appearance.

Recommended product references

• CHLUMINIT TMO: A valuable comparison point when lower yellowing or TPO-replacement discussions matter.
• CHLUMIAF 094: A balanced defoamer reference for waterborne coatings and many general foam-control screens.
• CHLUMIAF 3062: Useful when printing-ink and UV-ink compatibility matter in the defoaming screen.
• CHLUMIAF 3037: A stronger process-defoaming option when persistent foam survives harsher conditions.

FAQ for buyers and formulators

Why does an additive that looks powerful in a beaker sometimes fail in production?
Because shear, temperature, substrate, and the full formula can all change the way the additive performs under real process conditions.

Should the most aggressive additive always be preferred?
Not usually. The best additive is the one that solves the real defect while preserving the broadest safe operating window.