Modified Alkyd Resins

Alkyd resins are frequently modified to produce specific performance properties and finished film characteristics. Modifications can provide resin coating systems which yield more durable and more rapidly drying films and controlled flexibility, durability and hardness of the dried film. Urethane Modified Alkyds: Urethane alkyds applications include clear wood varnishes, floor paints, clear sports floor coatings, industrial primers and finishes, inks, commercial vehicle finishes, decorative paints for external use and upgrading long oil alkyds. T&W urethane alkyds are usually modified with TDI. A variety of solvents including mineral spirits, xylene and VM&P can be used for these products. T&W Urethane Modified Alkyd Resins List Silicone Modified Alkyds: Silicone alkyds are a specialized series of products used to formulate coatings with excellent durability, toughness, abrasion resistance and resistance to cracking caused by severe temperature changes. These resins are used in maintenance paints for steel and concrete, highest quality maintenance finishes, exterior decorative and marine paints, coatings on brass and aluminum, and heat resistant paints. Other modifiers such as rosin or epoxy can be used instead of silicone to produce specialized types of oxidizing resins. T&W Oxidizing Alkyd Resins List Water-Reducible Alkyds: These products are modified polyesters but have high acid values and employ special chemical blocking agents, such as carboxylic acid functionalities. When these alkyds are neutralized with ammonia or volatile amines, water can be used as the reducing (thinning) liquid. Water-reducible alkyds may take longer to dry, but the resulting coatings have similar gloss, flow, and leveling properties compared to similar solvent based coatings. These coatings are ideal as dipping primers and enamels and excellent for general purpose primers and topcoats. T&W Water Reducible Alkyd Resins List