



Asian Paints Clear NC Sanding Sealer
- Brand: Asian Paints
- Product: WoodTech NC Sanding Sealer
- Type: Single-pack, fast-drying nitrocellulose (NC) basecoat / grain filler
- Available Sizes: 500 ml, 1 Litre, and 4 Litre cans
- Coverage: Approx. 180 – 200 sq. ft. per litre
- Thinner: Dilute only with Asian Paints WoodTech A1 or A1 Gold Thinner
- Recommended For: Interior wooden furniture and timber surfaces before top-coating
Asian Paints WoodTech NC Sanding Sealer is a single-pack, economical undercoat for interior wood finishes. Its fast-drying nitrocellulose formulation fills timber pores cleanly, giving a smooth, professional base before a clear topcoat is applied. It provides excellent adhesion for the finish that follows and can be applied quickly by brush, rag, or spray.
Once sanded smooth and dust-free, the sealed surface is ready for its topcoat. Per Asian Paints' own product guidance, WoodTech NC Sanding Sealer can be used under NC lacquer, varnish, polish, acid-cure systems, and one-component (1K) PU topcoats such as WoodTech Touchwood 1K PU. It is available across three can sizes — 500 ml, 1 Litre, and 4 Litre — to suit anything from a single furniture touch-up to a full workshop project.
Key Features
- Fast-Drying Basecoat: Surface dry in around 45 – 60 minutes under standard conditions, speeding up the sanding and recoat cycle
- Superior Grain Filling: Fills timber pores cleanly for a smooth, even base before top-coating
- Strong Topcoat Adhesion: Compatible with NC lacquer, varnish, polish, acid-cure systems, and 1K PU topcoats such as WoodTech Touchwood 1K PU
- Economical, Single-Pack Formula: No hardener or mixing required — apply straight from the can, thinned as needed
- Available Across 3 Pack Sizes: 500 ml, 1 Litre, and 4 Litre cans for jobs of any scale
Application Instructions
- Surface Prep: Sand the wood surface with emery/sandpaper (grade 180), then a finer grade (320), and wipe clean. Fill any dents with a compatible wood filler
- Thinning: If required, dilute with Asian Paints WoodTech A1 or A1 Gold Thinner — up to around 150% by volume — to reach the right application consistency. Do not over-thin
- Application: Apply the first coat by brush, rag, or spray along the wood grain. Once surface-dry, sand lightly with 320- or 400-grit waterproof emery paper, wipe away dust, and apply a second coat. A third coat can be added on highly porous, open-grain woods such as oak or rosewood
- Drying: Allow the sealer to become tack-free before sanding — typically 45 to 60 minutes under standard conditions — and let it fully harden before applying the final topcoat. Drying and recoat times vary with temperature and humidity
Technical Specifications
| Attribute | Specification |
|---|---|
| Brand | Asian Paints — WoodTech |
| Product Type | Nitrocellulose (NC) Sanding Sealer / Basecoat |
| Available Sizes | 500 ml, 1 Litre, 4 Litre |
| Coverage | Approx. 180 – 200 sq. ft. per litre, per coat (on smooth, well-sanded wood) |
| Compatible Thinner | Asian Paints WoodTech A1 / A1 Gold Thinner only |
| Surface Dry Time | Approx. 45 – 60 minutes (varies with temperature and humidity) |
| Recommended Sandpaper | 320- or 400-grit waterproof emery paper, between coats |
| Compatible Topcoats | NC lacquer, varnish, polish, acid-cure systems, and 1K PU (e.g. WoodTech Touchwood 1K PU) |
| Recommended For | Interior wooden furniture and general timber surfaces |
Package Specifications
| Variant | Dimensions (L × B × H) | Gross Packaged Weight |
|---|---|---|
| 500 ml Tin Can | 10.5 cm × 10.5 cm × 11.0 cm | 560 g |
| 1 Litre Tin Can | 12.5 cm × 12.5 cm × 14.5 cm | 1,080 g (1.08 kg) |
| 4 Litre Tin Can | 18.5 cm × 18.5 cm × 23.5 cm | 4,250 g (4.25 kg) |
Why Buy from HomeRun?
- Genuine Asian Paints Product: Verified WoodTech stock sourced from authorized distributors
- 60-Minute Bangalore Delivery: Express delivery to active service zones for urgent workshop or restoration needs
- Choice of Pack Sizes: 500 ml, 1 Litre, and 4 Litre cans to suit projects of any scale
1) What is the recommended thinning ratio for WoodTech NC Sanding Sealer across the 500ml, 1L, and 4L variants?
Dilute the sealer with Asian Paints WoodTech A1 or A1 Gold Thinner only — up to around 150% by volume for a workable consistency, depending on your application method. For example, a 1 Litre can may take up to roughly 1.5 Litres of thinner. Do not over-thin, and always mix according to the ratio printed on the can, as this can vary by batch and application method.
2) How many coats of this sealer should be applied before putting on the final clear topcoat?
For optimal pore-filling and a uniform finish, 2 coats are typically recommended. On highly porous hardwoods with deep, open grain (like coarse oak or rosewood), a 3rd coat may be needed. Allow the sealer to become tack-free and sand between each coat.
3) What type of emery/sandpaper should be used to sand down this NC Sanding Sealer?
Once the sealer layer is tack-free — typically after 45 to 60 minutes under standard conditions — sand the surface using 320-grit or 400-grit waterproof emery/sandpaper. Lightly abrade along the direction of the wood grain until the surface feels flat and uniform, then wipe away all powder residue with a clean lint-free cloth.
4) Can I use this NC Sealer as a basecoat under a PU (Polyurethane) topcoat?
Yes, for one-component (1K) PU topcoats — Asian Paints' own product guidance confirms WoodTech NC Sanding Sealer can be used as an undercoat to WoodTech Touchwood 1K PU, along with NC lacquer, varnish, polish, and acid-cure systems. For two-component (2K), catalyzed, or cross-linked PU and Melamine systems, check the specific topcoat's own recommendation, as these sometimes call for a dedicated matching sealer instead.
5) Which pack size should I choose?
The 500 ml can suits small touch-ups or a single piece of furniture, the 1 Litre can covers a medium job like a few chairs or a cabinet, and the 4 Litre can is suited to larger furniture sets or workshop-scale projects, based on the approximate 180–200 sq. ft. per litre, per coat coverage.
- Return within 24 hours of delivery for:
- Damaged or defective product
- Wrong or missing item
- Product cannot be returned once opened or used
- Refer to Refund Policy for complete details
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