(1) varnish construction technology:

Polishing the base (cleaning the wood surface → polishing with sandpaper, smoothing and polishing, and cleaning with wet cloth); Brush the varnish for the first time (with thinner, the paint film dries quickly); Blow putty for the first time and polish it with sandpaper (putty repairs nail holes and gaps); Brush the varnish for the second time and polish it with fine sandpaper; Brush the varnish for the third time and polish it;

Wooden at least 5 times, polished with water sandpaper, waxed and polished. Note: interval until dry. 6 hours in summer and 24 hours in winter. Keep the site clean and free of dust. The temperature is above 5 degrees Celsius.

(2) Construction technology of mixed color paint:

Polishing the base (cleaning the dust on the surface of the base, repairing the base and leveling with sandpaper); First scraping putty (mixed putty, varnish, gypsum and powdered water 3:6: 1)→ grinding → brushing primer (main paint: curing agent: diluent 1:0.5: 1, primer thickness about 1 cm, drying for 4 hours) →

Polishing with fine sandpaper → painting topcoat (topcoat: curing agent: thinner 1:0.5: 1, curing agent increases paint adhesion, thinner increases drying, too thick for construction, too thin for poor adhesion) → filling putty → polishing and wiping topcoat for the third time → brushing topcoat for the third time → polishing and waxing.

2. Key points of construction

Code for construction of oil cleaning and paint polishing Primer is an important process of painting. First of all, remove the dust, oil stains and other impurities on the wood surface. Lubricating oil powder is also an important process of varnish painting. During construction, cotton silk is dipped in oil powder and coated on the wood surface, rubbed back and forth by hand, and the oil powder is rubbed into the wood eye. When brushing clean oil, you should hold the oil brush easily and naturally, and use your fingers gently, so as not to loosen or drop the brush when moving.

When painting, it should be carried out according to the requirements of dipping more times, dipping less oil every time, diligent operation and smooth brushing, and the construction should be carried out according to the operation methods of first up and then down, first difficult and then easy, first left and then right, first inside and then outside, and horizontal and vertical brushing.

Code for Construction of Mixed Oil on Wood Surface When dealing with the grass-roots level, in addition to cleaning up the sundries at the grass-roots level, local putty should be added and polished along the grain with sandpaper. Before painting the top coat, seal the knots and wood resin with lacquer flake (shellac paint).

Drying oil or berth clearing should be applied at the grass-roots level, and drying oil layer should be evenly applied to all parts, without brush leakage. After the priming oil is completely dried, scrape the putty for the first time, polish it with manual sandpaper after drying, and then fill in the high-strength putty. Putty shall be based on not picking silk. When painting the top coat, it should be polished with fine sandpaper first.

3. Preventive measures

(1) The base treatment shall be constructed as required to ensure that the surface coating will not fail.

(2) Clean up the surrounding environment to prevent dust from flying.

(3) Because the paint has certain toxicity and strong stimulation to respiratory tract, attention must be paid to ventilation during construction.

Latex is the main coating for plastering surface of indoor panels.

Basic treatment of board surface and plastering surface:

First use a shovel to remove impurities such as ash and bumps on the plastering surface, and then use a brown brush to clean up the dust and dirt on the surface. After the surface is cleaned, level it with putty.