GB/T 14732-2017 in English

GB/T 14732—2017 Standard Overview

This standard specifies the terminology, classification, technical requirements and test methods of urea-formaldehyde, phenol-formaldehyde and melamine-formaldehyde resins in the wood industry, and is applicable to synthetic resins for adhesives and impregnation of wood materials.

Technical Index Comparison Table

Explanation of professional terms

Standard formulation background and technology evolution analysis

The GB/T 14732 series of standards has been revised many times since its first release in 1993. The new version of the standard mainly improves the following aspects:

• Updated the definition of terms, especially the nomenclature of melamine-modified urea-formaldehyde resin.
• Added the immersion peel strength index to improve product quality requirements.
• Optimized the test method and introduced a 7-day sample test cycle.

Implementation recommendations

To ensure effective implementation of the standard:

1. Choose the right resin type: Choose urea-formaldehyde, phenol-formaldehyde or melamine-formaldehyde resin according to the wood species and the environment in which it is used.
2. Strictly control quality indicators: Focus on key parameters such as free formaldehyde, solid content and pH value.
3. Optimize storage conditions: Control the temperature as required by the standard and avoid high temperatures or humid environments.
4. Strengthen environmental compliance: Ensure compliance with the formaldehyde emission limit requirements in GB 18580.