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    Home > Coatings News > Paints and Coatings Market > Common knowledge of paint: ten common problems in paint construction and Solutions

    Common knowledge of paint: ten common problems in paint construction and Solutions

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    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 paint 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

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    Poor curing equipment (lamp) has a long service time, insufficient illumination or too fast speed

    If the paint 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 roller distance to make the paint reach the 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 paint 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

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