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    Home > Coatings News > Paints and Coatings Market > The grinding method of water-type wood coating

    The grinding method of water-type wood coating

    • Last Update: 2020-12-07
    • Source: Internet
    • Author: User
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    Wood coating professionals know that the quality of coating is good, grinding is a major factor, because
    polishing throughout the coating process
    . And
    grinding not only
    affect
    quality problems, it
    also
    directly affect the cost of the product
    ,
    because
    its waste of materials accounted for
    total loss of

    or so. If the methods and
    are right, at least 5% of the cost can be saved
    the
    .
    can be seen whether as a furniture enterprises or coating workers, should strengthen the importance of polishing.First of all, we need to know that water-based paint coating can use
    hand grinding and machine grinding two ways,
    sandpaper can be divided into
    wood sandpaper, water sandpaper, iron sand and other
    kinds of materials
    ,
    sandpaper and according to the rough subdivision into a variety of models, and there are cotton sand, cloth and other auxiliary grinding tools.
    need to choose the correct sandpaper and sandpaper model
    at different stages of the process according to the characteristics of sanding, and polish it in a skillful manner.does that grinding do? Grinding in different processes has different meanings, understanding this can be more autonomous to meet the grinding standards.1
    ,
    bai blank grinding the purpose is mainly to clean, find flat
    ,
    to remove the surface burrs, and enhance the adhesion between the wood paint and the plate.
    General sand grain than
    thick
    sandpaper (e.g. 180, 240, etc.) in the direction of wood grain, can not be cross-grinding or irregular grinding, so as not to
    severe the wood grain or
    leave sand marks.
    need to pay special attention to
    edges, corners, grooves and other bad polishing places, must be polished in place, these places are most prone to coating problems. And white blanks are best not to have a sharp
    rule angle
    design
    ,
    preferably curved
    , these places are prone to bad paint, adhesion is not good, paint film easy to fall off the problem. However, it is also important to note that do not
    the original design, so be sure to maintain the original circular or square contours.
    such as
    decoration line must be kept straight, can not make it bend, break, deformation.2
    ,
    primer polishing
    Here we divide the primer into two categories, with special effects of water-based primer (water-based closed primer, water-based glue solid primer) and the first water-based primer to fill.Special Primer
    , then we need to understand the role of primers, such as
    water-based
    glue solid primer
    in order to remove the plate encountered water-based paint after the problem of gluten, burrs. So at this time you can choose
    320 to 400 s sandpaper
    ,
    for bottom grinding, the plate polished smooth and smooth.
    water-closed primer
    is often used in water-based coatings to close the ligand, monoic acid and grease of the sheet, prevent the paint film from changing color and falling off, and prevent water from seeping into the upper coating. Therefore, the water-resistant closed primer sanding to pay special attention to, should be used 400
    to
    60
    0 of
    fine
    sandpaper
    for light grinding,
    Do not put the paint film sand through
    , especially in uneven, edge angle places, you can use 60
    0 s
    cotton sand sanding, avoid uneven sand through the paint film.first water-quality primer
    , generally play a filling role, can be used 240
    to
    32
    0, sandpaper
    normal sanding to flat, smooth, sand-free marks. It should be noted that in the water-open coating process, the paint film is relatively thin, you can choose a finer sandpaper along the wood grain for polishing.3
    ,
    intermediate coating polishing in the water-type coating process will generally have many primers or often used
    finish, solid color, wipe color, etc. belong to the
    middle coating
    .
    will generally choose 400
    to
    60
    0
    fine sandpaper for light grinding, in order to remove particles on the paint surface and increase the adhesion between layers, sanding force to be uniform, requiring flat, smooth, no bright spots, no sand marks. In the coating process of antique effect, multiple intermediate layers are used to make rich, three-dimensional color effect. This will use some auxiliary grinding tools, such as
    bly cloth, cotton sand,
    steel velvet
    and other easy to control the force
    , through repeated polishing, convenient and better catch the light and dark effect.4
    ,
    paint polishing
    the last water-like finish before the polishing, in order to ensure the surface effect of the last finish, so slightly polished, remove particles, smooth surface can be.
    If it is to do high-gloss effect
    , the need for paint polishing,
    generally take water mill, water mill can reduce abrasive marks, improve the smoothness of the coating, and save sandpaper, labor saving. First with 1000 to 1200 sandpaper grinding highlights, and then with 1500 sandpaper sand inspection.above is the main process of grinding standards, and in the polishing capital,
    is prone to wear, sand marks, sand leakage, surface is not smooth phenomenon
    , so in the grinding
    somewhat
    sm. precautions and operating techniques
    need to pay attention.1.
    In dry grinding will certainly produce a lot of dust, then we need
    test the dust treatment
    one is to protect the construction environment and the health of employees, so that employees work in a better state, and the other is to avoid dust affecting the quality of coating. Be sure to clear the ash before spraying, paint spray more need a good dust-free spray room and drying room.
    in the open coating process also need to pay special attention
    , to avoid dust into the wood catheter, brown eye. And in order to ensure the open effect, will generally use a clean cloth to polish the wood grain, or with a wire brush to deepen the wood grain. So be sure to remove dust from the wood with a harder brush.2.
    sanding
    sandpaper models to
    select the appropriate
    , not to save time, use coarse sandpaper to polish
    or
    sand
    .3.
    grinding,
    should be evenly
    , not available too strong or local excessive grinding
    .
    with four fingers and palms when grinding, thumb clamped sandpaper. When polishing furniture with a large area,
    blocks or use grinding tools to
    .4.
    the complex shape of the
    , to be lightly polished with fine sandpaper, local can use the thumb or index finger to hold sandpaper can also be folded sandpaper for careful grinding.
    heterosexual parts, such as the outer arc
    , can be polished with molds (
    and plate shapes consistent with the template, sandpaper
    the template).5.
    if the use of
    water mill
    then,
    must wait completely dry after
    and then
    to carry out follow-up construction
    , otherwise it is easy to produce
    phenomenon.
    other
    need to pay attention
    the water-absorbing substrate is not suitable for water
    .Through the above, it can
    that polishing is a very important and skillful work in
    construction
    construction.
    as furniture
    enterprises
    should
    pay attention to staff training,
    don't think
    "
    grinding the least technical content, polishing work who can do
    "
    ,
    and thus
    lead to the quality of grinding frequently, affecting the entire product
    smearment
    quality and cost
    ,
    due to small loss of
    . To help
    furniture companies successfully use water-based paint for environmentally friendly coatings
    ,
    highlighted
    's "staff training
    and the development of

    coating standards in the
    B.I.G
    integrated green solution
    introduced by The
    water-based paint in Burdink, where
    includes training in water-based paint coating
    grinding. Training on the construction details, each step of the polishing details, how to improve the efficiency of grinding, will speak very detailed.
    to help furniture
    improve
    efficiency, reduce employment, working hours, energy consumption, accessories and other
    . Furniture
    enterprises should fundamentally attach importance to the grinding process, recognize its importance to product quality and cost control, and paint companies together to establish a training system, check the standard grinding operation procedures, according to the process to develop a standard and perfect grinding operation process, improve grinding efficiency and quality, to ensure the effect of coating.
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