Causes of brush marks: In brush construction, relying on the surface tension of the paint cannot eliminate the traces left by the brush in the construction.The reasons for the brush marks of the paint are: (1) the construction viscosity of the coating is too high and the leveling performance is poor; (2) the application temperature is too high so that the thinner volatilizes too quickly; (3) the substrate is too dry, and the absorption capacity of the coated object in the face of the paint is too strong, making it difficult to paint. (4) The bristles are too hard or the brush is not well kept, so that the bristles are uneven or dry and hard. These factors are the reasons for the obvious brush marks in the painting.The following measures can be taken to prevent and control brush marks: (1) adjust the construction viscosity of the coating to improve the leveling; (2) adjust the pigment-base ratio, increase the amount of base material, and increase the number according to the degree of brush marks, determined by testing; (3) according to the characteristics of the paint used, select the appropriate brush and roller; (4) seal the substrate with a sealing primer, and then brush the primer and topcoat. (5) The paint selected for brushing should have good leveling, and the diluent with appropriate volatilization speed should be selected. For those who have already had brush marks, you can use sandpaper to gently sand and wipe them off with a cloth, and then apply them normally.

The cost of using resins for businesses includes:(1) Health costs. Workers are far more likely to experience dizziness, eye irritation, skin allergies, body lesions, and even cancer during the use of solvent-based resins than water-based resins.(2) Environmental protection costs. Traditional solvent-based resins contain a large number of organic compounds such as benzene, xylene, formaldehyde, and free TDI (chemical raw materials for polyurethane paints), which not only consume industrial raw materials such as petroleum in production and use, but also volatilize harmful gases, aggravate air pollution, and have hidden dangers that harm human health. Compared with water-based resins, the VOC emissions are about 1/10 of those of traditional solvent-based paints, and the use of water-based resins is more environmentally friendly.In addition, it is also an obligation and responsibility for enterprises to reduce pollution for the benefit of future generations. Improving the clean production capacity of the enterprise itself and creating environmentally friendly and healthy products is the guarantee of being invincible in the business war.(3) Security costs. A large amount of solvent in solvent-based resin is a high-risk source of fire and explosion, and a slight carelessness in the process of production, transportation and use of enterprises may cause unbearable and irreparable accidents, and the replacement of solvent-based resin with water-based resin greatly reduces the threat of fire and explosion to enterprises.Considering the above, the cost advantage of water-based resin over solvent-based resin is obvious, and the replacement of solvent-based resin by water-based resin is also an irreversible trend in the coating industry.

Hello, thank you for your trust and support to our company!The characteristics of water-soluble resin dilution are that the viscosity first rises and then decreases when diluted with water. If diluted with ethanol, the viscosity rise is not obvious!

(1) Environmental performanceWater-based paint is a kind of paint that uses water as a solvent, which is non-toxic and environmentally friendly. It does not contain harmful solvents such as benzene and does not contain free TDI. Solvent-based paints contain many harmful substances to the human body, such as benzene, toluene, xylene and other harmful carcinogens.（2） SmellThe water-based paint is low VOC, non-toxic and odorless, and can be used after spraying or brushing. Solvent-based paints contain strong pungent odors that harm human health.(3) AppearanceWater-based paint does not have solvents and other substances that are easy to yellow, and has good weather resistance and durability. The volatile solvent of solvent-based paint is continuously released, which is very easy to turn yellow and has poor durability.(4) The quality of the paint filmWater-based paint products are not inferior to solvent-based paints in terms of gloss, hardness, water resistance, chemical resistance and adhesion of paint films, but they are slightly worse than solvent-based paints in terms of fullness.(5) StorageWater-based paints are non-flammable and have no special storage requirements. Solvent-based paints are extremely flammable and must be stored separately in accordance with fire protection requirements.(6) Construction performanceThere are no special protection requirements for the use of water-based paints. Since water is used as the main solvent, a certain amount of surface drying time is required after construction to prevent the generation of pitting. Solvent-based paints must be professionally trained and practiced before they can be used, requiring special protective measures, with special attention to safety. Solvent-based paints have the advantage of fast drying time and higher efficiency than water-based.(7) CostSince water-based paint is diluted with water, while solvent-based paint needs to be diluted with organic solvents before it can be used, the cost of solvent-based paint will be a little higher.

Generally speaking, because the main solvent of waterborne resin is water with high surface tension, the performance of its application process is more affected by the formulation system (including additives, colors, fillers, etc.), temperature and humidity than that of solvent-based resins. Compared with solvent-based paints, water-based paints require an additional pre-drying system on the application equipment to ensure the full volatilization of water and the stability of temperature and humidity.

Possible reasons: (1) The anti-sag performance of the paint is not good; (2) The paint film is too thick; (3) The solvent evaporates too slowly. (4) Construction viscosity is too low.Solution: (1) Choose the solvent correctly, reduce the slow-drying solvent content, and pay attention to the solvent's solubility and evaporation speed. (2) It is not advisable to spray too thickly at one time. (3) Strictly control the construction viscosity of the coating; strengthen ventilation and strictly control the temperature of the construction environment. (4) Adjust the paint formula, use additives correctly, and increase the amount of anti-sag agent. (5) If sagging has occurred, please wait until the coating film is completely dry, then polish the sagging part with sandpaper before recoating. (6) Plastic paint can improve solvent release and anti-sag properties by adding cellulose acetate CAB.

Hello! Thank you for your support of our company! If it is a water-based glass baking paint resin, a neutralizer needs to be added; the dosage is usually determined by the PH value, and PH value is generally controlled at around 8-8.5 to maintain the water solubility and stability of the resin. Commonly used amine neutralizers are ammonia, dimethylethanolamine, and triethylamine.

Hello! Thank you for supporting us!The possible reason is that a solvent with a relatively high boiling point was added and the solvent did not evaporate. It is recommended to add solvents with lower boiling points, such as alcohol, which evaporate quickly and the paint film will not appear white after soaking in water.

Thank you for your support!The leveling agent can effectively reduce the surface tension of the coating, promote the coating to form a flat, smooth and uniform coating film in the process of drying, and improve the surface of the paint film.

Thank you for your support and trust in our company!For water-based paint resin, add a neutralizer before diluting it with water. If you don't add it, the water will be incompatible with the resin.