CJD Materials & Finishes Selection 5

Question 1

What is the main characteristic of a two-component (2K) epoxy floor coating?

Accepted Answer

It cures through a chemical reaction between resin and hardener

Answer

Epoxy cures chemically once resin and hardener are mixed, producing a hard, chemical-resistant film.

Question 2

A decorator notices that the existing paint chalks heavily when rubbed. What should be done before recoating?

Accepted Answer

Wash off the chalk and apply a primer suited to chalky surfaces

Answer

Chalk prevents adhesion, so it must be cleaned and the surface primed with a binding primer.

Question 3

What does 'pot life' mean when using a catalyzed coating?

Accepted Answer

The usable time after mixing before the product becomes too thick to apply

Answer

Once components are mixed, the reaction starts, and pot life is the working window before it gels.

Question 4

Which finish is typically recommended for kitchen cabinets that need durability and a smooth appearance?

Accepted Answer

Waterborne alkyd or urethane-modified enamel in satin or semi-gloss

Answer

Hybrid or urethane-modified enamels level well and cure hard, resisting grease and frequent cleaning.

Question 5

Grasscloth wallcovering is best avoided in which location?

Accepted Answer

A steamy bathroom or splash-prone kitchen area

Answer

Natural-fiber grasscloth stains with water and is not washable, so wet areas are unsuitable.

CJD - Certified Journey Decorator Practice Test