Code of practice for finishing wood and wood-based materials, Part 2: Schedules

IS 2338 Part 2 - Scope & Key Specifications

This standard coordinates internationally and aligns with Indian practices for wood finishing. Key points:

Scope Highlights

• Applies to painting materials, finishes, tools as per IS:1303-1963 & IS:707-1958.
• Rounding of test/analysis results per IS:2-1960.
• Covers finishing schedules for new woodwork (interior & exterior).

Key Tables for Finishing New Woodwork

IS 2338 Part 2 - Terminology and Definitions: Key Points

• Terminology Reference:
  Terms related to painting materials, finishes, tools, and accessories are as per:

  • IS 1303-1963 (Glossary of terms relating to paints)
  • IS 707-1958 (Glossary applicable to timber, plywood, joinery)

• Finish Definition (Clause 4.1.2):
  A finish consists of multiple coats (refer Tables 1 & 2 in the standard), including stopping and filling as needed.

• Maintenance Work (Clause 4.2):
  Painting/finishing for maintenance should follow principles in Table 3 (not provided here), ensuring durability and compatibility.

• International Coordination:
  The standard aligns with global practices while considering Indian field conditions (Clause 0.3).

Typical Finish Coats (from IS 2338 Part 2)

Summary Diagram: Painting Process Flow

flowchart LR
    A[Surface Preparation] --> B[Stopping & Filling]
    B --> C[Primer Coat]
    C --> D[Undercoat]
    D --> E[Finishing Coat]
    E --> F[Maintenance Painting]

Note: For exact coat specifications, refer to Tables 1, 2, and 3 in IS 2338 Part 2.

If you need formulas or tables for paint quantities or thickness, please specify!

IS 2338 Part 2: Necessary Information for Application & Finishing Woodwork

Key Points:

• Terminology & Materials: As per Clause 2.1, painting materials, finishes, tools, and accessories follow IS:1303-1963 and IS:707-1958.

• Necessary Information (Clause 3.1): Refer to Clause 3 of IS 2338 Part 1 (1967) for detailed info on efficient finish application on wood and wood-based materials.

• Maintenance Painting Schedule (Clause 4.2, Table 3):

• Tables 1 & 2 (Appendix A): Specify paint types for interior/exterior use referencing IS standards like IS:103, IS:106, IS:117, IS:129, IS:133, IS:2933, etc.

Summary of Paint Application Steps:

flowchart TD
    A[Surface Condition Assessment] --> B{Blistering or Cracking?}
    B -->|No| C[Clean + Sand + Reviver Coat]
    B -->|Localized Cracking| D[Rub + Primer + 2 Finishing Coats]
    B -->|Localized Blistering| E[Scrape + Primer + 2 Finishing Coats]
    B -->|Deep Damage| F[Remove to Bare Wood + Full Schedule]

Important:

• Always prepare surface properly (cleaning, sanding, scraping).
• Use primers and undercoats as per paint type and surface condition.
• Refer to IS 2338 Part 1 for workmanship and operations details.
• Paint quality and type

IS 2338 Part 2 – Schedules for Finishing Woodwork

Key Tables for Finishing New Woodwork

1. Interior Woodwork Finishing Schedule (Table 4.1)

• Fillers: Use IS:426-1961 or IS:110-1950 after primer if needed.
• French Polish: Follow IS:348-1952 & IS:2338 (Part I).

2. Exterior Woodwork Finishing Schedule (Table 4.2)

IS 2338 Part 2 - Finishing New Woodwork: Key Specifications & Tables

1. Finishing Schedules for New Woodwork (Interior) - Clause 4.1.2

• Fillers (IS:426-1961 or IS:110-1950) may be applied after primer for finishes (i), (ii), (iii).
• Proprietary materials must be sourced from the same manufacturer.

2. Finishing Schedules for

IS 2338 Part 2: Surface Preparation Key Points

Surface Preparation (Clause 4.1.1)

• Clean & smoothen surface with abrasive paper.
• Prime the surface as per IS:2338 Part I-1967.
• Knots: Treat with 2 coats of shellac knotting.
• Deep holes: Fill with plastic wood conforming to IS:423-1961.

Finish Application (Clause 4.1.2)

• Follow coating schedules in Tables 1 & 2 (not fully reproduced here).
• Include stopping and filling as necessary.

Maintenance Painting Practices (Clause 4.2, Table 3)

Referenced IS Paint Standards (Appendix A)

• IS 103, 106, 110, 111, 113, 117, 119, 129, 133, 137, 2338 Part I etc. for primers, fillers, undercoats, and finishing paints.

Summary Table: Surface Preparation Steps

flowchart TD
    A[Wood Surface] --> B[Clean & Smoothen (Abrasive Paper)]
    B --> C{Knots Present?}

IS 2338 Part 2: Finishing Schedules for Interior Woodwork

Key Finishing Schedule for New Interior Woodwork (Clause 4.1.2)

Notes:

• Fillers per IS:426-1961 or IS:110-1950 may be applied after primer for finishes (Enamel, Oil Gloss, Flat).
• Proprietary materials must be used with their own adjuncts from the same manufacturer.
• French polish finishes per IS:348-1952.

Summary

IS 2338 Part 2: Finishing Schedules for Exterior Woodwork

Key Notes:

• Fillers conforming to IS:426-1961 or IS:110-1950 may be applied after primer for enamel, oil gloss, and flat finishes.
• Use finishing materials from the same manufacturer when proprietary products are used.
• Refer to Appendix B for glaze and stain details.
• For French polish finishing, follow IS:348-1952 and IS:2338 Part I.

This schedule ensures durability and aesthetic quality for exterior woodwork finishes under various environmental conditions.

flowchart TD
    A[Primer] --> B[Undercoat]
    B --> C[First Fin

IS 2338 (Part 2) - Maintenance Painting Practices

1. Maintenance Painting (Clause 4.2, Table 3)

Note: Combined treatments apply for mixed conditions.

2. Paint Schedules for New Woodwork (Tables 1 & 2)

Refer to IS 2338 Part I for workmanship and operations.

3. Important IS Paint Specifications (Appendix A)

• IS 103-1962: White lead primer
• IS 106-1962: Wood primer for enamels
• IS 133-1965: Enamel undercoat & finishing

IS 2338 (Part 2) - Key References on Paints and Coatings

1. Referenced Indian Standards on Paints and Coatings

These IS codes specify primers, undercoats, finishing coats, and fillers for wood finishes:

2. Recommended Painting Schedule for New Woodwork (Interior & Exterior)

IS 2338 Part 2: Details on Stains and Glazes

Key Points on Stains (Clause 2.2)

• Stains supplied as liquid ready-to-use or powders to be dissolved in water, spirit, or oil.
• If oil medium is used, driers and thinners may be required.

Finishing Schedules for New Woodwork (Clause 4.1.2)

Maintenance Painting (Clause 4.2)

• Surface conditions like blistering, cracking, chalking guide cleaning and repainting.
• Example: For localized cracking, rub down damaged paint