IS 2338:2000 (Part 1) is the Indian Standard (BIS) for finishing of wood and wood-based materials, part 1: operations and workmanship. This code provides comprehensive guidelines for the finishing of wood and wood-based materials in buildings, detailing operations and workmanship for surface preparation, staining, filling, polishing, varnishing, and painting.
Code of practice for finishing of wood and wood-based materials, Part 1: Operations and workmanship
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Adhesion Testing | Qualitative visual inspection for peeling or flaking. | Passes cross-hatch adhesion test per ASTM D3359 with a minimum rating of 4B. | AWI 300 |
| Sheen Level Specification | Descriptive terms like 'matt', 'egg-shell', or 'full gloss'. | Quantitative ranges measured with a gloss meter (e.g., Matte: 0-10 GU; Satin: 20-35 GU at 60 degrees). | AWI 300 |
| Dry Film Thickness (DFT) | Not specified; defined by number of coats (e.g., 'three or more coats of varnish'). | Specific minimum DFT is required (e.g., 1.0 mil / 25 microns for transparent systems). | AWI 300 |
| Sanding Procedure | Final sanding with 'No. 0 or 00' sandpaper (approx. P220-P280). | Typically specifies a maximum grit to ensure stain/finish penetration (e.g., not to exceed P180 for many systems). | AWI 300 |
| Knot Treatment | Application of 'two coats of knotting varnish'. | Application of a dedicated shellac-based or stain-blocking primer over knots and resinous areas. | BS 6150:2019 |
| Moisture Content of Wood | Implied to be in a 'dry condition'. | Specifies a maximum moisture content range before finishing (e.g., 6-12% depending on region and use). | AS/NZS 2311:2017 |