ApplicationCâu 57 / 100
Why is maintaining a 'wet edge' important when brushing or rolling large walls?
a.It prevents lap marks by blending each new stroke into paint that is still wet
b.It makes the paint dry faster
c.It increases VOC content
d.It is only needed when spraying
Giải thích
Working to a wet edge means each new area of paint merges with an area still wet, so the overlaps blend invisibly. If the edge dries first, the overlap shows as a darker lap mark. Planning the sequence and working quickly across manageable sections maintains the wet edge.
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Câu hỏi liên quan cùng chủ đề
- What is a 'holiday' in spray or brush application?
- What typically causes 'runs' or 'sags' in a paint film?
- What causes 'orange peel' texture in a sprayed finish?
- When rolling a wall, what technique helps achieve even coverage and hide roller marks?
- How many coats does a typical high-quality paint job over a properly primed surface usually require?
- Why should you 'back-brush' or 'back-roll' paint that was sprayed onto rough or porous exterior surfaces?
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