Products & MaterialsQuestion 42 of 100
Why should you avoid mixing incompatible coatings, such as applying a strong solvent-based lacquer over fresh latex?
a.It always improves adhesion
b.The solvent can attack and lift or wrinkle the underlying coating
c.It reduces drying time safely
d.It has no effect at all
Explanation
Aggressive solvents in some topcoats can soften and lift an incompatible underlying film, causing wrinkling or delamination. Painters check compatibility and recoat windows on the product data sheets before combining systems. When in doubt, a test area or a compatible primer prevents failures.
Practice all 100 questions free — no signup required.
Related questions on this topic
- If a coating is applied at 4 mils wet and the paint is 50% solids by volume, what is the approximate dry film thickness?
- What is the purpose of adding a small, manufacturer-recommended amount of the correct thinner to paint for spraying?
- Which coating type is commonly used to bridge and waterproof hairline cracks on exterior stucco?
- One gallon of paint is stated to cover 400 sq ft at the recommended film thickness. If you apply it too thin to stretch coverage to 500 sq ft, what is the likely result?
- What information does a product's Technical/Product Data Sheet typically provide that guides application?
- Which statement about VOC content and drying is generally TRUE?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California CSLB C-33 Painting & Decorating Trade Exam · How we review