NC Varnish Topcoat is a decorative one-pack nitrocellulose coating formulated with special additives. It delivers an ultra-fast drying finish with excellent leveling properties, featuring a smooth film that is easy to rework and ensures good film build-up. The coating offers a silky finish with moderate hardness, and provides moderate resistance to household chemicals and beverages (long-term contact with strong solvents should be avoided). Compared to traditional PU coatings, it has lower VOC emissions, making it suitable for decorative protection of wood surfaces.
Item No :
NC VarnishApplication :
Used for wood decorative protection via conventional spray; needs NC Thinner.Special Feature :
Ultra-fast drying, low VOC, good leveling, silky finish; moderate hardness and chemical resistance.
Technical Data
Sheen Variants: 80%,50%,30%,20%,10% and Full Matt
Colors: Translucent clear
Practical Covering Capacity: 6-8㎡/kg per coat at 50-60 microns DFT. Practical coverage varies depending on porosity of wood, DFT applied and application method.
|
Test |
Method |
Result |
|
Solids by Weight |
In Oven 150°C for 30 min |
30 ± 2% |
|
Specific Gravity (gm/ml) |
Specific gravity Cup |
0.96 ± 0.02 |
|
Viscosity |
Ford cup 4 |
7 – 8 min |
|
Drying time |
Surface dry |
15 - 20 min |
|
Complete dry |
40 - 60 min |
Application Data
Method of application : Conventional spray application
Thinner : NC Thinner
Thinning ratio(per kilogram):Use 100% for ease of application depending on the gun type
Available Pack Size: 4LY、4LF、18LF、20LY、200LY
Application Steps
1. Substrate Preparation: For blanks or boards, sand with 320-mesh sandpaper; for topcoats, sand with 400-600-mesh sandpaper.
2. Color Wiping: Perform color wiping treatment according to the sample or the customer's color requirements. Color wiping is optional and can be omitted depending on the desired finish effect. After color wiping (if applied), allow air-drying at room temperature for 4-8 hours.
3. Paint Proportioning: The ratio of base coat:thinner=1:1.2.
4. Primer Process: After spraying the first coat of primer, allow air-drying for 2 hours, then sand and re-spray the second coat of primer. A third re-spray is optional if necessary. (Note: The amount of thinner can be appropriately reduced during re-spraying.)
5. Color Adjustment: After primer spraying is completed, color-adjusting oil can be used for color adjustment or color modification.
6. Glazing: Select the required gloss level and apply the corresponding.
Applocation Details




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