TECHNICAL DATA SHEET 1/3 PLASTIK 70 Ref. : 20743 1. GENERAL DESCRIPTION Quick drying, colourless transparent insulating and protective coating based on acrylic resins. 2. FEATURES PLASTIK 70 is a low viscosity, solvent drying acrylic based conformal coating with excellent insulating properties. The lacquer is colourless transparent and elastic. It has a durable adhesion in the temperature range from 40C to +60C and can be used for a short period of time up to +100C maximum. It protects printed circuit boards and surfaces from humid anorganic-acid or caustic vapours. PLASTIK 70 is colourless-transparent and as such is not visual on the printed circuit board surface. For repair works PLASTIK 70 can be soldered through or be totally removed with aceton, THINNER FOR PLASTIK 70. 3. APPLICATIONS PLASTIK 70 was specially developed to protect printed circuit boards. It overcomes electrical leakages and short circuits. As a low viscosity fixing and insulating lacquer, PLASTIK 70 can also be used as extra/after insulation of coils and transformers and overcomes disturbing noises. PLASTIK 70 can also be used as a universal protective coating on any surface like metal, paper, ornaments, paintings, furniture, etc. 4. DIRECTIONS For small runs and service applications, the easiest way to apply PLASTIK 70 is from an aerosol can. Spray from a distance of 20 to 30 cm on the dry and degreased surface. As pre-cleaning of PCBs, we do recommend the use of KONTAKT PCC to remove greases, dirt and flux residues. When finished spraying, clean the aerosol valve by turning the can upside down and pressing the button until only propellant escapes. For serial production runs, PLASTIK 70 in bulk can be applied by brush or by dipping. For spraying, two parts per volume PLASTIK 70 is diluted with up to one part of THINNER FOR PLASTIK 70. The precise mixing ratio must be determined by trials with the equipment concerned. For dip coating it is also necessary to fix the immersion time and the withdrawal speed. The faster the removal from the bulk, then thicker the film will be. Dipping baths have to be carefully protected to ensure no entrapment of conductive stuck-on residues. Manufactured by : CRC Industries Europe BVBA Touwslagerstraat 1 9240 Zele Belgium Tel (32) (0) 52/45.60.11 Fax (32) (0) 52/45.00.34 www.crcind.com TECHNICAL DATA SHEET 2/3 PLASTIK 70 Ref. : 20743 PLASTIK 70 contains solvents like ethyl acetate and butyl acetate. Printed circuit board materials and electronic components generally have a good compatibility with these solvents. In case of plastic surfaces (e.g. housings) a compatibility test is always recommend. It is necessary in particular, to test its suitability for plastics susceptible to stress cracking (e.g. polycarbonate). PLASTIK 70 contains flammable solvents and hence when working with the product, make sure there is good ventilation in the workplace. Remove all possible ignition sources. A safety data sheet (MSDS) according to EU directive 91/155/EEC and amendments is available for all CRC products. 5. TYPICAL PRODUCT DATA (without propellant) As delivered Coverage at 20m, calculated : 0.7m/200 ml spray 9m/litre Viscosity bulk : 10-20 mPas Flashpoint : <0C Drying time at 20C (dry to touch) : 20 minutes Properties dry film (after 24 hrs drying at ambient temperature, thickness 20-40 m) Aspect : colourless-transparent 13 Surface resistivity at 20C : >10 13 Volume resistivity at 20C : >10 .cm Dielectric strength : >80kV/mm Adhesion to copper plates, measured at ambient temperature following 6 hrs at 40C : Gt 0-1 following 6 hrs at +60C : Gt 0-1 following hr at +100C : Gt 0-1 Manufactured by : CRC Industries Europe BVBA Touwslagerstraat 1 9240 Zele Belgium Tel (32) (0) 52/45.60.11 Fax (32) (0) 52/45.00.34 www.crcind.com