Alkydal F 300 SN Short-oil alkyd resin Bayer MaterialScience Alkyd Resins >> Short-oil Automotive OEM >> Top coats General Industrial /Maintenance Naphtha 100 Soluble in aromatic hydrocarbons, esters, ketones, glycol ethers and glycol ether esters Slightly soluble in aliphatic and terpene hydrocarbons and alcohols Short-oil alkyd resin based on saturated and unsaturated fatty acids In the formulation of automotive top coats (OEM), general-purpose industrial coatings and pigment pastes for staving finishes. The resin has very good film and mechanical properties and is resistant to acids and waxes. Alkydal F 300 SN is compatible with standard commercial urea and melamine resins. However, given the number of different amino resins on the market, it is always advisable to test compatibility in each individual case. With an alkyd resin/amino resin ratio of 75:25 to 70:30, optimum film properties are yielded by stoving for 30 min at 120 to 140 °C. Paint films based on Alkydal F 300 SN are resistant to yellowing at temperatures up to 140 °C. Any change in the degree of whiteness at higher temperatures can be limited by the addition of 0.2 % IrganoxÒ 1010 (Ciba-Geigy), calculated on solid resin. However, Alkydal F 300 SN is not recommended for the formulation of pure white top coats requiring overbaking resistance to 150 °C or more. The stoving temperature can be reduced by combination with reactive alkyd resins, e.g. Alkydal F 310, and highly reactive amino resins. Top coats based on Alkydal F 300 SN are characterised by their high body, good flexibility and resistance to acids and waxes. They also have excellent adhesion to various primer surfacers and, as one-coat finishes, to bare metal. The very good pigment wetting properties of Alkydal F 300 SN ensure haze-free films with brilliant gloss. Weather resistance Weathering test results show that gloss retention and chalking resistance are good, even in sub-tropical conditions. Stability To ensure the stable viscosity of the product in combination with amino resins, it is advisable for safety reasons to use alcohol solvents. Short-oil alkyd resin based on saturated and unsaturated fatty acids. Used in the formulation of automotive top coats (OEM), general-purpose industrial coatings and pigment pastes for staving finishes. Provides very good film and mechanical properties and resistance to acids and waxes. Offers compatibility with urea and melamine resins, high body, good flexibility and very good adhesion to various primer surfacers. Gives very good pigment wetting properties, and good gloss retention and chalking resistance.