Page 589 - Handbook of Thermal Analysis of Construction Materials

Chapter 13 - Organic Construction Materials
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Based on organic unsaturated polyester dissolved in unsaturated monomer; cured by free radical reaction catalyzed
Resin is dispersed in water to form water emulsion; acrylic is major resin type; one-component materials; cure by
solvent evaporation followed by coalescence of the resin particle; used as protective and architectural coatings in
wood or concrete where moisture must be allowed to pass through the coating; cannot be used on steel without
the form of primers, intermediate coats, and topcoats; high moisture vapor transmission rates; good to protect
by peroxide; used mainly for lining due to their good acid and chemical resistance.
Characteristics
coatings because of low shrinkage. anticorrosive pigments, but are used in mild weather to protect steel; used as overcoats for oil-based or alkyd (Chemically cured): The isocyanate (–N=C=

Table 3. (Cont’d.) Name Polyesters and vinyl esters Water-borne acrylic (or acrylic latex) Urethanes