National N.C. Metallic: Metallic Lacquer for Cars and Furniture

Front of a yellow car

Short answer: National Auto Lacquer N.C. Metallic is a glossy, nitrocellulose-based metallic finish for automotive and furniture work, with special shades on request. Spray it, thinned 20 to 30% with National Lacquer Thinner. Apply two coats over N.C. Primer Surfacer, then one coat of N.C. Auto Lacquer Clear. It covers 10 to 15 m² per litre. Shelf life is only 6 months, so buy close to the job.

Metallic, Gold or solid Topcoat?

N.C. MetallicN.C. GoldN.C. Topcoat
LookMetallic gloss, special shadesGold metallic glossSolid colour, gloss or matt
ApplicationSpray onlySpray onlySpray, brush or roller
Clear coatRequired (1 coat)Required (1 coat)Optional
Shelf life6 months6 months18 months
From National’s N.C. data sheets.

Key facts

TypeNitrocellulose metallic lacquer, single pack
UsesAutomotive and furniture finishing
Finish and coloursGlossy; metallic, special shades on request
Volume solids30 ± 2%
Spreading rate10 to 15 m² per litre (theoretical)
Film per coat20 to 30 microns dry (65 to 100 wet)
Drying at 30°CTouch 15 to 30 min; recoat 3 to 4 h; polishable 8 to 15 h
ApplicationSpray (airless 2000 to 2200 psi, tip 0.013 to 0.020 inch; air 60 psi)
Thinning20 to 30% with National Lacquer Thinner
Flash point7°C
Shelf life6 months, sealed
Source: National Paints technical data sheet.

Step 1: prepare

  • Steel and car panels: degrease, then remove rust to Sa 2.5 or St 2, per National’s surface preparation guide.
  • Wood furniture: dry, rubbed down with glass paper and dusted.

Step 2: the system

  1. N.C. Primer Surfacer, one coat.
  2. N.C. Putty or Polyester Putty, one coat, sanded.
  3. N.C. Primer Surfacer, one coat.
  4. N.C. Metallic, two coats.
  5. N.C. Auto Lacquer Clear, one coat.

What the numbers mean

Coverage = 30 × 10 ÷ 30 = 10 and 30 × 10 ÷ 20 = 15 m² per litre. Metallic needs heavier thinning (20 to 30%) than the solid topcoat, so you will use more thinner per litre of paint.

How much to buy

AreaMetallic, 2 coatsClear, 1 coat
10 m²about 1.3 to 2 Labout 0.6 to 0.95 L
25 m²about 3.3 to 5 Labout 1.6 to 2.4 L
Our own calculations from the theoretical rates, before spray losses and thinner.

Mistakes to avoid

  • Skipping the clear coat. The listed system ends with one.
  • Mixing batches from different tins on one panel. Box the tins together first.
  • Overstocking. Shelf life is 6 months, sealed.

Frequently asked questions

Can I get a special shade?

The data sheet says special shades are available on request. Send us the shade and we will check.

Can I brush it?

No, the sheet lists spray only. For a brushable N.C. finish, see N.C. Topcoat.

Buy in Sharjah and Dubai

Al Tashteb Al Saree is an authorised National Paints retailer in Bu-Tina, Sharjah. Message us on WhatsApp with your shade.

Sources

All via AEC Online, retrieved 4 November 2026. Quantities are our own calculations. The main image is illustrative.

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