This video lecture from Macromolecules (F.Sc. second year Chemistry) covers epoxy resins. These macromolecules are a result of condensation polymerization of poly ethers. Fundamentally epichlorohydrin and diphenylolpropane can be condensed to produce epoxy resin. These resins find application in coating materials where toughness, adhesion, flexibility and chemical resistance is required. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.