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Many people do not know enough about water-resistant paint, think that water-resistant paint in terms of performance is not as good as traditional oily paint, in fact, this is a big misconception, water-resistant paint not only in environmental protection is much higher than traditional paint, in terms of performance, such as adhesion, yellowing resistance, water resistance, etc., but also better than traditional oily paint.
about water-like paint to crack:
1, water-like paint adhesion?
adhesion is better than oily paint (excluding low-quality water-resistant paint), normal temperature drying quickly, and has excellent rust protection, corrosion resistance, excellent weather resistance.
2, why is water-resistant paint more yellow-resistant than paint?
because the water-based paint film does not contain yellow-prone substances, and oily nitro contains a large number of nitrosized cotton, PU contains a large number of TDI and other yellow-prone substances
.
3, water-like paint has a good flexibility?
softness of water-based paint is unmatched by paint, because water-based paint film is almost all pure resin cross-linked, and nitro contains a large number of nitro cotton, PU contains a large number of very easy to break the chain of TDI.
4, water-like paint will cause wood cracking?
, in a sense, but easy to achieve a certain anti-cracking function.
Wood has hydro-hydrogenic properties, nano-scale water-based resin can be with the wood catheter seep into the material a certain depth, drying and curing, these seepage resin can be well glued wood fibers, should play a role in slowing wood cracking function, rather than water-based paint coated furniture will be more prone to cracking.
5, water-like paint will improve the water content of wood?
No, as follows:
(1) Wood moisture content and wood moisture content calculation:
to a piece of 1M x 1M, thickness of 1CM solid wood calculation, the general furniture enterprises used solid wood in the processing water content of 12% (water content of wood moisture weight, and the weight of de dried wood percentage).
(2) Water content after wood is coated with water-based paint: the
theory is calculated as follows, with 40% (i.e. 60% of which is water), 10m2/kg of artificial spray and spray utilization rate 40% (highest) calculation, equal to the amount of water sprayed into the wood is 24g/m2, after spraying the natural drying process, about 50% of the water will evaporate externally, and finally the amount of water adsorption of the wood about 12g/m2.
(3) wood once the first layer of coating film closed, the second layer of sprayed water can not enter, unless the first layer of primer is not waterproof.
(4) wood on the positive surface of the actual water absorption is very poor, moisture into the wood is mainly the end, if the furniture manufacturing process to be closed as early as possible, the water content of the wood is more difficult to change.
the hardness of the water-like paint to 6?
the hardness of a single part HB to 1H, equivalent to nitro paint, and the hardness of two parts 1 to 2H, i.e. the same as PU paint.
7, water-like paint closed?
Very good, when water-based paint film to a stable period, its permeable wood fiber resin and surface resin will be closely linked, and will not be slightly cracked by the creep of wood, it will have a better closure than oily paint.
8, water-resistant paint resistant to 100 degrees C boiling water?
poor cold water, will white shadow, bubble or seepage, such as good water-resistant paint resistant to hot water, no reaction.
9, water-resistant paint, such as acid and alkali protection?
can pass the same national standard test as oily paint, some items are better than oily paint, such as alcohol-resistant.
10, water-like paint can do oily paint luster?
light less than a minute, such as a single-group water-like paint can reach 8 minutes, two-groups can reach 9 minutes, but matte can be more dumb than paint.
11, water-resistant paint weather resistance, resistance to newness?
is much better than paint, about twice as much, because the resin cross-linking of water-based paint is not the same, so when used in outdoor painting, water-based paint than paint advantages are more obvious.
12, water-like paint has a stronger permeability to wood?
, wood is hydro-hydrogenic, and the resin of water-based paint can easily seep into the wood and bond the wood fibers, which will help the wood to resist cracking.
13, water-like paint can have the clarity of oily paint?
, of course, also look at the clarity of the resin itself and cross-link density, etc. , the paint powder will also affect the clarity of the paint film.
14, water-colored paint VOC and oil-like paint VOC comparison?
water for water-based coatings as a dispersion medium, volatile water during spraying and drying, voCs emit very little. Solvent-based coatings are painted with organic solvents (100% dilution of VOCs content) and have a large amount of VOCs volatile during spraying and drying.
15, why is the water-like coating film the most consistent coating film of wood?
because the water-like paint film is a wrinkled film, oily paint is a balance film, water-like paint can more meet the deformation of wood around the clock.
16, the rapid hardness of water-like paint slower than oily paint does not mean that the water walks very slowly?
No, in fact, water-like paint coating, moisture in front of the packaging almost evaporated, fast hardness is slow, because such as water-like plasticizers and other additives evaporate too slowly caused, such additives than oily similar substances much slower.
17, why is the water-like paint film getting harder and harder?
because as some additives evaporate, water-based resins adhere to each other, will be more and more tight, naturally is the hardness of the paint film is getting higher and higher.
18, water-resistant paint wear resistance represents hardness?
does not represent, but there is a certain relationship, high hardness can improve scratch resistance, but wear resistance may be related to film quality, water wax added how much.
is there so little dust when it is polished with water-like paint?
because the resin has a better hydro-hydroporitivity than oily resin, flying dust is very easy to absorb moisture in the air and sink, so the use of water-based paint will appear to be particularly clean air.
20, water-like paint can not be polished with water sandpaper?
Because the water sandpaper is mainly used for the operation of the need for water grinding, sanding methods and powdering methods are also different from dry sandpaper, sanding is particularly prone to heat, its own water-based paint film resin is more, more susceptible to heat replastication, coupled with water sandpaper powdering capacity is poor, resulting in very easy sandpaper.
, water-based paint is a new type of environmentally friendly coating relative to paint, and its environmental principle is to replace the thinner in traditional coatings with water. Compared with traditional paint, water-based paint is the biggest feature of water as a thinner, nearly 50% is harmless to human body and environment, does not contain benzene, toluene, xylene, formaldehyde, free TDI, heavy metals and other toxic and harmful substances, can minimize the natural environmental pollution and harm to human health. Just because 50% is water, so water-based paint non-toxic non-irritating odor, brush can stay, the construction process, non-combustible, high safety factor.
.