1035373

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 PCB’s, 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. 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 (SDS) according to EU directive 91/155/EEC and amendments is available for all CRC products.