Coating classification: coating terms and interpretation

Core tips: 1 Surface drying time Under the specified drying conditions, the surface of a certain thickness of wet paint film changes from liquid to solid, but it is believed to be liquid Time required 2 Hard drying time Under specified drying conditions, it is necessary to apply a certain thickness of liquid paint film to form a solid paint film Time 3 Transparency The ability of matter to penetrate light Transparency can indicate that varnish, paint and thinner contain mechanical impurities Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Paint Home News: 1 Surface drying time the time required for a certain thickness of wet paint film to change from liquid to solid under the specified drying conditions 2 Hard drying time under the specified drying conditions, the time from the application of a certain thickness of liquid paint film to the formation of solid paint film 3 Transparency the ability of matter to pass through light Transparency can show that varnish, paint and diluent contain mechanical impurities and turbidity 4 Density the mass per unit volume of an object at a specified humidity The common unit is kilogram per cubic meter (kg / m3), gram per cubic centimeter (g / cm3) 6 Solid content non volatile matter content: the amount of nonvolatile matter contained in the solid content coating It is generally expressed by the percentage of the mass of non-volatile matter, or by the percentage of volume 7 Fineness of grind a measure of dispersion of pigments and physical pigments in the paint That is, under the specified conditions, the reading obtained on the standard fineness meter% I, j5t8z - b5j, which indicates the depth of a groove in the fineness meter, generally expressed in microns (μ m) 8 Storage stability under the specified conditions, the degree to which the coating product resists the performance changes such as peculiar smell, consistency, skinning, coarseness, sinking, caking and so on that may occur after storage 9 Compatibility the ability of one product to mix with another without adverse consequences (such as precipitation, agglomeration, thickening, etc.) 10 Hiding power: the ability to eliminate the color difference on the substrate 11 Application property) the difficulty of coating construction Note: the coating has good workability, generally refers to the coating is easy to apply (brush, spray, dip, etc.), good leveling, no sagging, wrinkling, shrinkage, color penetration, undercut; moderate dryness, easy grinding, good repainting, and low requirements for construction environment conditions 12 The difficulty and effect of recoat ability in multi-layer coating of the same coating 13 Film thickness the measurement of film thickness, generally expressed in microns (μ m) 14 Gloss 8 P2P: an optical property of R + R & L surface, expressed by its ability to reflect light 15 Adhesion the firmness of the bond between the adhesion film and the coated surface (through physical and chemical action) The coated surface can be either bare or painted 16 Hardness paint film's resistance to mechanical forces such as collision, indentation and scratch 17 The ability of flexible paint film to form with its substrate without damage 18 Resistance of abrasiveness resistance film to friction 19 After polishing (dry or wet grinding) with pumice, sandpaper and other materials, the grinding property paint film or putty layer will produce a smooth matte surface 20 Yellowing tendency of yellowing film during aging 21 The ability of temperature change resistance film to maintain its original performance through the temperature change of cold and heat alternation 22 The hair mixing varnish or diluent with clouding + K, l0u1b Z presents cloud like opacity due to the precipitation of insoluble matter 23 The thickening phenomenon of thickening coating caused by the loss of diluent during storage 24 The phenomenon that flocculation forms agglomerates in paint or dispersion 25 The phenomenon that gelling coating changes from liquid state to unusable solid or semi-solid state 26 Skinning coating in the container, due to the oxidation polymerization, the phenomenon of forming a skin film on the liquid surface 27 The phenomenon that the solid component of settling coating sinks to the bottom of the container when it is in the container 28 In caking coating, particles such as pigments and physical pigments are precipitated into dense lumps which are not easy to be redistributed by stirring 29 there are coarse particles (coarse crusts, gelatin, agglomerates or foreign coarse grains) displayed in coarse seedy coating during storage, and 30 coarse pig Shin color paint during storage, resulting in poor grinding fineness due to flocculation of pigment 31 In the process of storage or drying, one or more kinds of paint with different pigment mixtures are separated or floated, and the color uneven stripes and spots appear on the surface of the paint or film 32 Extreme condition of floating color and flooding 33 Bubbles, such as air or solvent vapor, or both, formed during the application of bubbling coating Such bubbles can disappear in the drying process of paint film and can exist permanently 34 Pinhole pin holes: a kind of pathological condition similar to pinhole existed in the film 35 Wrinkling: how many regular wrinkles in the form of small amplitude ripples can be seen in the wrinkling film, which can be as deep as part or all of the film thickness 36 Orange skin paint film has the appearance of orange skin 37 During the drying process of whitening glossy coating, the film sometimes appears milky white 38 When the sags; curtains coating is applied on the vertical surface, it is used due to its poor resistance to sags or improper application, too thick paint film, etc., and the weight wet paint film moves downward to form an uneven coating with thick lower edge of various shapes 39 Brush mark a ridge like stripe left on the dry paint film after brushing This is due to the paint drying too fast, viscosity is too large, the paint brush is too rough and hard, the brush method is not appropriate and other reasons that the paint film can not flow flat 40 A number of small round pits with different sizes and distributions remained in the film after drying 41 The fat edge coating with thick edge has ridges on the edge of the painted surface, which makes the edge of the dry film too thick 42 When undercutting lifting applies the same or different coating on the dry paint film, the dry film under it will soften, bulge or separate from the substrate during the coating application or drying period (usually the appearance is wrinkled) 43 Color bleeding comes from the colored material in the lower layer (substrate or paint film), which enters and passes through the diffusion process of the upper paint film, so that the paint film presents undesirable color or color change 44 The phenomenon of irregular convex particles distributed on the whole or partial surface of the rough pretty appearance paint film after drying 45 Dirt retention on the surface of dry paint film 46 The phenomenon that the gloss of loss of gloss film decreases due to the influence of climate and environment 47 The cracked cracking film shows discontinuous appearance change It is usually caused by aging of paint film 48 Peeling phenomenon that one or more coatings are separated from the lower coating, or all coatings are completely separated from the substrate 49 After tack, the dry and non sticky surface of the paint film then appears sticky 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,