What's the difference between painted wood paint and waterborne wood paint? Matters needing attention in the construction of wood paint

What's the difference between painted wood paint and waterborne wood paint? What matters need to be understood and analyzed during construction operation? Consumers with similar puzzles can learn from the following points. What we explain to you is the knowledge of these parts, and we can also know that the so-called paint wood paint, as its name implies, is relatively less green and environmentally friendly, but it has better smoothness and luster, and is suitable for being painted on the surface of furniture or on the wall to play a decorative role. You can learn from the following, and I believe you can achieve satisfactory results.

1. What is the difference between painting wood paint and painting water-based wood paint?

The difference between waterborne wood paint and oily wood paint: oily paint has strong adhesion, slightly better filling, high hardness and good luminosity. The disadvantage is that it is not environmentally friendly. Water-based paint is environment-friendly and non-toxic. It can be directly diluted with clear water, with good permeability, clear coloring and good yellowing resistance. The disadvantage is that the hardness and surface strength are insufficient, so it is difficult to do high luminosity process. Details of the two paints are as follows:

1, water-based paint is a kind of paint with water as diluent. Waterborne coatings include water-soluble coatings, water-dilutable coatings and water-dispersible coatings (latex paints). Water-soluble coatings are based on water-soluble resin, represented by polyvinyl alcohol and its various modifications, in addition to water-soluble alkyd resin, water-soluble epoxy resin and inorganic polymer water-based resin.

2, oily paint, also known as grease paint. A coating with drying oil as the main film-forming substance mainly includes clear oil, thick paint, oily ready mixed paint, oily antirust paint, putty and putty. The main oils used are tung oil, linseed oil, perilla seed oil, soybean oil, sunflower oil and fish oil. Its characteristics are easy production, low price, good paintability, flexible coating and good permeability. The disadvantages are slow drying and poor physical and chemical properties of the film, which has been replaced by synthetic resin paint with excellent performance.

Second, the steps

(1) varnish construction technology: clean the wood surface → sand paper grinding → wetting powder → sand paper grinding → scraping putty for the first time, sand paper grinding → scraping putty for the second time, fine sand paper grinding → painting oil paint → painting varnish for the first time → color matching, putty filling and fine sand paper grinding → painting varnish for the second time.

Polishing with fine sandpaper → Brush with varnish for the third time → Polishing with water sandpaper and waxing.

(2) Construction technology of mixed color paint:

First, clean up the dust on the surface of the base, repair the base → smooth it with sandpaper → draw scars → render putty → apply drying oil → blow putty for the first time → polish → apply primer → dry primer → apply topcoat → repair putty → polish topcoat for the third time → apply coating for the second time → polish topcoat for the third time → polish and wax.

Three, building wood paint construction matters needing attention

1, and cannot be constructed with latex paint at the same time.

Wood paint products contain toluene diisocyanate (TDI). If wood paint and latex paint are painted at the same time, these free TDI will react with the components in latex paint, which will make the painted wall yellow.

Therefore, wood paint and latex paint cannot be constructed at the same time. It is suggested to brush the wood paint first and then the wall paint to prevent the components in the wood paint from polluting the wall.

2, to prevent hardware pollution

No matter what process is adopted, the hardware on the workpiece should be protected with masking paper to prevent the hardware from being stained with wood paint.

In addition to careful operation and timely cleaning of contaminated parts such as hardware, paint should be done first, and then locks, handles and latches should be installed to ensure that the hardware is clean and beautiful.

3. Select matching products when allocating.

In the construction of wood paint, if you choose water-based wood paint, you only need to dilute it with water in proportion. However, if nitrocellulose paint and polyurethane paint are selected, relevant curing agents and diluents need to be added, and they must be prepared in strict accordance with a fixed ratio.

Therefore, in the process of construction, it is best to have professional guidance. Select the matching diluent and curing agent in strict proportion to avoid problems such as undercut and wrinkling.

4, wood paint after deployment to filter.

After the wood paint is mixed, it should be filtered. Because the dust in the air will form small particles after mixing with wood paint, if it is brushed directly without filtration, it will cause particles on the surface of the paint film and the surface is not smooth enough.

Therefore, after the wood paint is mixed, it is necessary to filter out the particulate impurities with a filter bucket, and then it is best to let it stand for more than ten minutes before construction.

5, the remaining paint difference processing

After the water-based wood paint is used up, the remaining paint can be put in a cool place for later use. Nitryl paint and polyurethane paint can only be used once because of the addition of curing agent and diluent, and the rest of the paint can only be disposed of.

At the same time, after the completion of construction, waste paint should be properly disposed of and tools should be cleaned in time.

The above recommendation is about the comparative analysis of paint wood paint and water-based wood paint and the matters needing attention in purchasing. Therefore, relatively speaking, waterborne wood paint has better environmental performance, convenient construction and long service life, but the wood paint painted on this basis has better gloss and smoothness, which can provide us with a series of rich colors and patterns to choose from, and can cater to the traditional home decoration style or modern minimalist style to make the finishing touch. Choosing reliable products according to the actual situation can achieve satisfactory results.

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