Urea and Formaldehyde Adhesive for Wood

• Customization: Available
• CAS No.: 9011-05-6
• EINECS: 23-820-9
• Model NO.: 701
• Color: White
• Packing Way: 25kgs/Bag
• Shrinkage: 0.6-1.00%
• Promoter Composition: Curing Agent
• Classification: Hot Melt
• Storage: Kept in Air, Dry and Cool Warehouse
• Bonding Function: Pressure Sensitive Adhesive
• Application: Woodworking
• Composition: Organic Material
• Transport Package: White Plastic Bag/Paper Bag
• Specification: Urea Resin Powder
• Trademark: ATOPOR
• Origin: China
• HS Code: 390910000
• Production Capacity: 10000mt/Year

Product Description

Urea Formaldehyde Resin Powder is a type of thermosetting resin that is made by combining Urea and formaldehyde. It is commonly used as a binding agent in the production process of wood products such as plywood, particleboard, and MDF (medium-density fiberboard) and molded LVL boards. The resin powder is mixed with wood particles and then heated and compressed to form a strong and durable composite material. Urea-formaldehyde resin powder provides good adhesion, water resistance, and dimensional stability to the pressed wood and wood boards.
 

Applications of Urea Formaldehyde Resin Powder 

- Wooden panels and blocks 

- Bamboo, wood and molded products 

- Plant fiber products 

- Civil engineering 

- Veneer surface 
 

How do pack Urea Formalde Resin Powder?Paper plastic composite bags and lined with plastic bags, 25kg / bag. It should be stored indoors in a dry and ventilated place with a temperature below 25 ºC and a storage period of 24 months.
How to produce plywood?

Application Guide to Use

FAQ: Urea-Formaldehyde Resin Powder for Plywood, Particle Board, and MDF Factories1. What is the primary concern regarding formaldehyde emissions in UF resin powder?

Answer: Formaldehyde emissions are critical due to their impact on environmental compliance and health safety. Factories must ensure UF resin powder meets strict standards like E1 (≤0.1 ppm), E0 (≤0.05 ppm), or CARB Phase 2 to comply with regulations and ensure suitability for indoor use.

2. How can factories reduce formaldehyde emissions from UF resin powder?

Answer:

• Use low- or zero-emission UF resins..
• Add formaldehyde scavengers like urea or melamine during production.
• Optimize hot-pressing conditions (e.g., control temperature and curing time) to minimize residual formaldehyde.

3. Why is bonding strength a key concern for UF resin powder?

Answer: Bonding strength determines the structural stability and durability of plywood, particle board, and MDF, especially under high loads or long-term use. Weak adhesion can lead to product failure, affecting quality and customer satisfaction.

4. How can factories ensure strong bonding with UF resin powder?

Answer:

• Select high-molecular-weight or modified UF resins .
• Maintain proper resin-to-hardener ratios (e.g., 2:1 or per supplier guidelines).
• Test resin compatibility with specific wood types to optimize adhesion.

5. Why is moisture resistance a concern for UF resin powder?

Answer: UF resin has poor moisture resistance, limiting its use in humid or exterior applications. This is a concern for factories aiming to produce durable products for varied environments.

6. How can factories address moisture resistance issues with UF resin powder?

Answer:

• Use standard UF resin for indoor products where moisture exposure is minimal.
• Opt for melamine-modified UF (MUF) resins or add waterproofing agents for improved moisture resistance.
• Control wood moisture content (8-12%) during production to reduce moisture-related issues.

7. Why is cost-effectiveness important when selecting UF resin powder?

Answer: UF resin is chosen for its low cost, but factories must balance cost with quality. Low-cost resins may compromise bonding strength or exceed formaldehyde emission limits, reducing market acceptance.

8. How does UF resin powder impact production efficiency?

Answer: The curing time and mixing process of UF resin powder affect production speed. Factories prioritize resins that are easy to mix, cure quickly, and are compatible with automated lines to maximize efficiency.

9. How can factories improve production efficiency with UF resin powder?

Answer:

• Use fast-curing UF resins..
• Ensure efficient mixing equipment to prevent clumping or uneven distribution.
• Adjust hardener ratios to optimize curing time (typically 2-5 minutes at 120-140°C).

10. What are the storage and stability concerns for UF resin powder?

Answer: Improper storage can lead to moisture absorption or degradation, reducing resin performance and affecting product quality. Factories need stable, long-shelf-life resins to maintain production consistency.

11. How should UF resin powder be stored to ensure stability?

Answer:

• Store in a dry, cool environment away from direct sunlight and moisture.
• Use sealed packaging to prevent moisture absorption or clumping.
• Follow supplier shelf-life guidelines (typically 6-12 months).