Paint knowledge common problems and Solutions

Core tips: 1 The equipment (lamp) with poor curing has been used for a long time, the illumination is insufficient or the speed is too fast If the product is stored for a long time or the amount of solvent added due to initiator failure is too large or the boiling point of the solvent is too high, replace the UV lamp, or slow down the speed appropriately to make the equipment operate under rated conditions The product shall be used within the warranty period If it exceeds the warranty period, it shall be handed over to the manufacturer for treatment The product should not be added with solvent, if necessary, it should be carried out under the guidance of the technical personnel of the manufacturer 2, the product has gel spot storage improper production environment, UV protection is insufficient The product shall be kept away from light It is forbidden to be exposed to ultraviolet light or sunlight Several ways of roller coating Recommended introduction: roller coating includes rubber roller coating, insert plate roller coating and ceramic rubber roller coating The following is a detailed introduction of these three ways of coating The function of roller rubber coating is to increase the friction derivative between the conveyor belt and the cylinder surface during transmission, so as to reduce the friction coefficient of the conveyor belt on the cylinder surface, reduce the mutual wear of the sliding machine of the conveyor belt on the cylinder surface, improve the traction force during operation, and extend the service life of the conveyor belt and the electric roller One, three, six, 8385-7180 (V) rubber rollers are covered with diamond rollers and flat rollers, generally pure rubber plates The rubber coating of the inserted plate roller is divided into tile shell type roller and Paint Home News: 1 Poor curing equipment (lamp) has a long service time, insufficient illumination or too fast speed If the product is stored for a long time or the amount of solvent added due to initiator failure is too large or the boiling point of the solvent is too high, replace the UV lamp, or slow down the speed appropriately to make the equipment operate under rated conditions The product shall be used within the warranty period If it exceeds the warranty period, it shall be handed over to the manufacturer for treatment The product should not be added with solvent, if necessary, it should be carried out under the guidance of the technical personnel of the manufacturer 2, the product has gel spot storage improper production environment, UV protection is insufficient The product shall be kept away from light It is strictly prohibited to be exposed to ultraviolet light or sunlight 3 There are roll marks (orange peel) on the surface of the coated product The production environment temperature is too low or the coating roll gap of the equipment with high product viscosity is too large The appropriate improvement process is adopted to heat up or contact the manufacturer to use the product with appropriate viscosity Adjust the roll distance to a proper distance 4 There are bubbles on the product surface, the system is unstable, and there is air leakage Add too many low boiling point solvents to the system before production, so as to ensure the tightness of the feeding system The product should not be added with solvent, if necessary, it should be carried out under the guidance of the technical personnel of the manufacturer 5 There is dust on the surface of the product The dust removal of the production equipment is not good The product is contaminated During production, keep the charging system, coating roller and drying equipment clean Mixing of products is strictly prohibited 6 The surface of the base material is polluted The product chosen is not appropriate Clean and dry the base material for production shall be ensured, and oil removal and dust removal shall be carried out when necessary UV curing products have a strong specificity, according to the production needs of the right choice of use 7 The poor adhesion of the paint film results in insufficient curing due to the insufficient irradiation intensity of the UV lamp The substrate surface is contaminated Improper diluent selection Incorrect product selection If the illuminance of the UV lamp is significantly lower than the quota or seriously unstable, the lamp tube shall be replaced in time Clean and dry the base material for production shall be ensured, and oil removal and dust removal shall be carried out when necessary The product should not be added with solvent, if necessary, it should be carried out under the guidance of the technical personnel of the manufacturer UV curing products have a strong specificity, according to the production needs of the right choice of use 8 The glossiness of the film deviates from that of the UV lamp and the vehicle speed The diluent is not properly selected Adjust the speed and lamps to make the equipment operate under the rated conditions to ensure the quality of products The product should not be added with solvent, if necessary, it should be carried out under the guidance of the technical personnel of the manufacturer 9 The surface of the product is sticky or oily, and the UV lamp irradiation intensity is not enough, resulting in insufficient curing Improper diluent selection If the illuminance of the UV lamp is significantly lower than the quota or seriously unstable, the lamp tube shall be replaced in time The product should not be added with solvent, if necessary, it should be carried out under the guidance of the technical personnel of the manufacturer 10 The adhesion of the paint is poor or there are wrinkles The equipment (lamp) has been used for a long time, the illumination is insufficient or the speed is too fast Long storage time or initiator failure Too much solvent or high boiling point Replace the UV lamp, or slow down the vehicle to make the equipment operate under rated conditions The product shall be used within the warranty period If it exceeds the warranty period, it shall be handed over to the manufacturer for treatment The product should not be added with solvent, if necessary, it should be carried out under the guidance of the technical personnel of the manufacturer Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,