Question

Select the incorrect statement about the Urea formaldehyde resins from the following option.

(a) They are clear and colorless

(b) They have good adhesive characteristics

(c) They have low hardness and tensile strength than PF resins

(d) They have excellent abrasion resistance

I got this question in examination.

Origin of the question is Thermosetting Polymers topic in chapter Polymers of Engineering Chemistry I

Answer 1

The correct option is (c) They have low hardness and tensile strength than PF resins

To elaborate: Urea formaldehyde resins have a better hardness and tensile strength than PF resins. All the other options are correct. They are colorless, clear and have good adhesive characteristics and excellent abrasion resistance.