This standard specifies the typical process of alkyd varnish and phenolic varnish. This standard applies to the process specification of alkyd varnish and phenolic varnish for finishing of wooden furniture and other wooden parts. QB/T 3657.2-1999 Process specification of alkyd varnish and phenolic varnish for finishing of wooden furniture QB/T3657.2-1999 Download the decompression password of the standard: www.bzxz.net

Light Industry Industry Standard of the People's Republic of China
Wooden furniture finishing process
Alkyd varnish, phenolic varnish
Specification of finishing process
Subject content and scope of application
This standard specifies the typical process of alkyd varnish and phenolic varnish. QB/T 3657.2-—1999
This standard applies to the process specification of alkyd varnish and phenolic varnish for finishing of wooden furniture and other wooden parts. Reference standards
GB/T4893.1～4893.8 Determination of paint film on furniture surface SG/T279 Finishing of wooden furniture
3 Finishing process flow
The process flow of finishing shall be specified in Table 1.
Process name
White surface treatment
Dry sanding
Apply hole filling material
Apply primer
Replace putty
Sanding
Water color
Note: ① "0" in the table indicates the process to be carried out; ②Oil-based putty should not be partially embedded;
③Wood color should not be water-colored.
4 Material selection and preparation
Product level
4. 1 Alkyd varnish and phenolic varnish can be selected according to Appendix A (reference). Process name
Apply primer
Adjust color difference
Dry sanding
Apply topcoat
Dry sanding
Apply topcoat
4. 2 The dyes, pigments, driers, solvents and other auxiliary materials used should not affect the properties specified by alkyd and phenolic varnishes. 4. 3 The primer should have good adhesion to the substrate and topcoat, and should not affect the physical and chemical performance requirements of the final paint film of the topcoat. Approved by the Ministry of Light Industry of the People's Republic of China on October 23, 1989 228
Product level
Implemented on May 1, 1990
QB/T3657.2---1999
4.4 Preparation of hole filling materials: Generally, water-based hole filling materials and oil-based hole filling materials can be used. Please refer to Appendix B (reference material) for the proportions and mix all components evenly.
5 Preparation of putty: Generally, shellac putty and oil-based putty are used. Please refer to Appendix C (reference material) for the proportions and mix all components evenly. 4.5
5 Other requirements
5.1 The moisture content of the wood on the surface of the coating product should be consistent with the annual average wood equilibrium moisture content in the area of ​​use. 5.2 Before coating, you must be familiar with the composition, performance, use and technical indicators of the coating and use it correctly according to the prescribed method. 5.3 Before painting, the oil marks, glue marks, resin, wood hair and other dirt on the surface of the object to be painted must be treated. The painting site and painting tools must be kept clean, the construction environment temperature should be kept between 15 and 35°C, and the relative humidity should be above 75%. 5.4
5.5 The construction viscosity of the paint must be controlled so that it does not flow or show brush marks when spraying or brushing. 5.6 The last coat of paint must be applied after the previous coat of paint is completely dry (no marks left after removal). 5.7 It is not advisable to add a drying agent when applying the last coat of paint. 6 Quality requirements for the finishing layer
6.1 The physical and chemical properties of the paint film constructed in accordance with the provisions of this standard can reach the levels specified in Table 2. The test method should comply with the provisions of GB/T4893.1~4893.8.
Inspection Items
Liquid Resistance of Paint Film
Moisture and Heat Resistance of Paint Film
Dry Heat Resistance of Paint Film
Adhesion of Paint Film
Gloss of Paint Film
Resistance of Cold and Hot Temperature Difference of Paint Film
Abrasion Resistance of Paint Film
(Selected from GB/T 4893.1~4893.8)
10% sodium carbonate, 24h
30% acetic acid, 24h
70℃, 15min
80C, 15min
(40±2)℃～(—20±2)℃
Relative humidity 98%～99%,
General grade: 1000 rpm
6.2 Appearance requirements for coating layer
6 cycles
The appearance requirements for the coating layer shall comply with the provisions of Article 3.2 of SG/T279-1985. rKAONKAca-
can achieve
no cracks, bubbling, obvious
loss of gloss or discoloration on the paint film surface
the following models are recommended
alkyd varnish: CO1-1.CO1-5
phenolic varnish: FO1-1, FO1-2, FO1-4calcium carbonate
No. 200 solvent gasoline (or turpentine)
calcium carbonate
calcium sulfate
shellac varnish (viscosity 11~12)
rosin water
additional instructions:
this standard was drafted by Wuhan Furniture Factory. 230
QB/T 3657.2-1999
Appendix A
Alkyd varnish and phenolic varnish
(reference)bzxz.net
Appendix B
Pore filling material ratio
(reference)
Water-based hole filling material
Appendix C
Putty ratio
(reference)
Shellac putty
(percentage by mass)
Oil-based hole filling material
(percentage by mass)
Oil-based putty
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