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    Home > Coatings News > Paints and Coatings Market > Common sense of paint: eight mistakes in the use of emulsion paint

    Common sense of paint: eight mistakes in the use of emulsion paint

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tips: [news] latex paint is favored by more and more modern families for its rich and soft colors and healthy and environmental protection characteristics, and it is the main force of interior wall decoration at present

    Every owner who wants to decorate has a certain understanding of it

    However, the use of latex paint can achieve the expected decoration effect, in addition to the quality of the product itself, but also has a lot to do with the use method

    I'm afraid that not all owners can understand this point

    Mistake 1: primer is not very useful, you can use it without it As long as the walls are puttied, they must be painted with primer, even the old walls Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form

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    Every owner who wants to decorate has a certain understanding of it

    However, the use of latex paint can achieve the expected decoration effect, in addition to the quality of the product itself, but also has a lot to do with the use method

    I'm afraid that not all owners can understand this point

    Myth 1: primer is not very useful, you can also use it as long as you have scraped the putty on the wall, you must brush the primer, even if the old wall is renovated, you must brush the primer on the parts that have scraped the putty

    Because the putty used now is water-resistant putty, which is more alkaline

    The primer has the effect of alkali resistance

    If you do not brush the primer, the putty will return to alkali, and the wall will become flower

    Special reminder: less water shall be added to the primer, and the interval between the primer and the subsequent finishing coat shall not be too short (preferably not less than 24 hours), otherwise, the putty may return to alkali after the primer is applied

    Mistake 2: the smoother the base treatment is, the better most people know that before the construction of emulsion paint, the wall should be treated to ensure that there are no bubbles, cracks, dust, etc., so that the construction effect of emulsion paint can be smooth

    But is the wall smoother the better? This is another misunderstanding

    If the wall is too smooth or greasy, the wall will peel easily after painting, which will also affect the decoration effect

    If the base is too smooth, the correct way is to brush the base with a rigid brush and remove the greasy dirt with solvent

    Mistake 3: layered latex paint can't be reused

    If some latex paint is left after decoration, it can be stored in a cool and backlit place after the bucket cover is covered

    However, after a period of standing, the emulsion paint may be stratified

    Many owners think that the layered emulsion paint can no longer be used

    In fact, as the emulsion paint is an aqueous solution, it is normal to have layered phenomenon

    As long as there is no yellowing, mildew, peculiar smell and other conditions, it can still be used normally after being stirred evenly, without affecting the final coating effect

    Error 4: touch the wall with white paint and quality problems

    After finishing the finishing coat, touch the white paint with your hands

    You don't need to be nervous

    Most of the "powder" dropped is dust on the wall

    In the process of construction, a lot of dust will slowly attach to the wall, and similar phenomenon of powder falling may occur after touching with hands

    Use a duster or clean towel to wipe off the dust, which should be solved

    If the quality of latex paint is relatively poor, the moisture content is too much, and the emulsion is less

    After a year or two of the paint, it may appear that the dust is removed with the towel, but even if it is painted, it will not be dropped by hand

    Special reminder: latex paint is best applied to the wall for 24 hours and then touched by hand

    If the construction temperature is below 5 ℃, the time should be extended to one week

    Before buying latex paint, it's better to ask the merchants about the grade of latex paint

    In general, medium and high-grade paint won't lose powder, but the paint with lower grade has poor scratch resistance and is more likely to lose powder

    Mistake 5: the more expensive the emulsion paint is, the better the effect is

    The wall effect after the construction of the emulsion paint is good

    Influenced by the quality of the emulsion paint itself and the construction technology, "good horse" also needs to be equipped with "good saddle", so as to give full play to its maximum effect

    The higher the grade, the higher the content of paint, emulsion and other raw materials, the higher the requirements for the construction process

    If the construction process does not pay attention, it is more prone to the phenomenon of wall brushes

    Special reminder: before the construction, the construction personnel must be strictly in accordance with the construction requirements in the product description, especially pay attention to the three requirements of water quantity, base treatment and interval time indicated in the product description

    Mistake 6: qualified latex paint is not the same national standard as environmental protection

    Only latex paint that has passed the national green ten ring certification is the real environmental protection product

    Special reminder: only latex paint products that have passed the green ten ring certification will have corresponding labels on their surfaces, and consumers can check whether they have such labels when they buy them

    At the same time, you can also ask the merchants for the test report presented by the National Paint Quality Supervision and inspection center, and check the VOC (volatile organic compounds) and other indicators

    The lower the value is, the more safe and environmentally friendly products are

    China's environmental mark certification standard requires that the VOC content of wall paint after water removal should be ≤ 80g / L

    Mistake 7: the number of scrubbing resistance index high wall surface can be scrubbed at will with towel

    The number of scrubbing resistance of latex paint is tested with a special machine brush on the paint surface, rather than the test result with a tool made of towel

    If the towel is rubbed as hard as clothes, the paint film may be scratched, and even the latex paint with a high number of scrubbing resistance may also be powdered

    Special reminder: if there is a stain on the wall, wipe it off in time with a wet towel with normal strength, and the paint with poor quality may penetrate for too long, which is not easy to remove

    Myth 8: Although emulsion paint is a kind of water-based paint with excellent environmental protection performance, many owners still like to open doors and windows after use, one is to speed up the drying of the wall, the other is to disperse the peculiar smell of the paint

    It seems like killing two birds with one stone, but is this really right? This is not the case

    Especially in the northern dry areas, if the paint drying time is too fast, the latex paint quickly loses water in a short time, which is easy to cause wall cracking, and finally has to be reworked

    The correct way is to open a small gap in the window to ensure the indoor ventilation

    On the premise of this, it is advisable to let the wall completely dry in 1-2 days

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