INTRODUCTION: Cashew nut shell liquidcontains Phenolic group called ANACARDNIC ACID. CNSL oil isdistilled and Card phenol is separated. Card phenol is polymerized and modifiedwith Alkyds, Styrene monomer and Rosin to make different grades ofmodified Card phenol resin. SILEX 70 is Plain Card Phenol based PhenolicResins. They are Golden yellow in colour and are suitable for manufacturingSynthetic Hard Gloss Semi Darker & Darker Enamel Paints, InsulatingVarnishes, Aluminum Medium etc., & are having outstanding Film Properties.They can be blended with any conventional Alkyds and Epoxies & can be usedfor making Lighter colour shades also & specially recommended for MarinePaints.
COMPATIBILITY:These resins arecompatible with all drying oils in all proportions like Linseed Oil, DCO, Soyaetc., Their compatibility with other resins like Alkyds & Epoxies is alsovery good.
SOLUBILITY: SILEX 70 are soluble in most of the Aromatic& Aliphatic hydrocarbon solvents like Mineral Turpentine Oil (MTO), MineralSpirits (MS), Xylene, Toluene, SolventNaphtha etc.,
RECOMMENDEDDRIERS: Driers added are 1%Lead, 0.5% Cobalt & 1.5% Manganese as metals in their Octoate and thevarnish is left for 24 hours for ageing. These resins have very good filmforming property like high gloss, better hardness and water/chemicalresistance. These properties are beneficial to paint manufacturers asCardphenol resin is economical compared to conventional Alkyds. However pureCardphenol resin can be incorporated in regular paint formulation to reducecost and adjust quality.
RECOMMENDEDUSES: High GlossRedoxide metal primer made with Cardphenol resin does outstanding performance andcorrosion protection. In making economical quality interior enamels Cardphenolresin is added to reduce cost of formulation and also improve gloss.Incorporating Long oil alkyd in Cardphenol formulation improvesflexibility and durability. Cardphenolresin based formulations tend to yellow when exposed to sunlight and the shadeof the paint darkens hence not recommended for exterior finishes. Suitable forOffset Printing inks, Insulating Varnishes etc.,