... density fiberboard (MDF) industry because of their low cost and Urea-formaldehyde (UF) resins are dominantly used in the medium density ... resins are used in adhesives, finishes, MDF, and molded objects. Urea-formaldehyde resin's attributes include high , flexural modulus and heat distortion temperature ... mould, high surface hardness, elongation at break, and volume resistance. urea formaldehyde resin