A. Abrasion resistance
B. Thermal stability
C. Adhesion to rubber
D. Hardness
A. Siloxane elastomers
B. Polyamides
C. Vinyl polymers
D. Urea-formaldehyde resins
A. Cellulose acetate
B. Polyvinyl acetate
C. Thiokol
D. PVC
A. Urea formaldehyde
B. Epoxy
C. Amino
D. Phenolic
A. Ion-exchange resins
B. Fountain pen barrels
C. Formica table tops
D. Combs
A. Non-inflammable
B. Harder
C. Stronger
D. Both B. & C.
A. Wet tear and bursting strength
B. Folding endurance
C. Wet rub resistance
D. All A., B. & C.