Common Problems and Analysis of Woodworking Adhesive for Veneer Assembly

1. Common Problems and Analysis of Woodworking Adhesive - Veneer Adhesive

Adhesive penetration too fast or opening time too long: Insufficient amount of adhesive, strong absorption capacity of substrate, or affected by environmental factors: increase the amount of adhesive and shorten the opening time. Low initial strength: too short pressing time, too low hot pressing temperature, or too long opening time: prolong pressing time, increase hot pressing temperature, shorten opening time. Poor bonding strength: long opening time, insufficient pressure, difficult to bond substrate: shorten opening time, increase pressure, use new adhesive. Adhesive penetration: excessive amount of fabric adhesive, unsuitable adhesive: reduce the amount of fabric adhesive, choose a new adhesive. Discoloration: The low pH of the adhesive causes a reaction between the adhesive and the chemical components inside the wood. Use D2 system adhesive.

2. Common Problems and Analysis of Woodworking Adhesive - Assembly Adhesive

Penetration speed too fast, opening time too long: insufficient amount of fabric adhesive, strong absorption capacity of substrate or affected by environmental factors: increase the amount of fabric adhesive and shorten the opening time. No adhesive strength: too short compression time, too long opening time, poor wood processing accuracy, insufficient pressure, inconsistent wood moisture content: extend compression time, improve wood processing accuracy, increase pressure, control wood storage and adjustment, and ensure that the moisture content between adjacent substrates does not exceed 2%. Poor bonding strength, smooth adhesive film: long opening time, poor wood processing accuracy: prolonged pressing time, improved wood processing accuracy. Discoloration: The low pH of the adhesive causes a reaction between the adhesive and the chemical components inside the wood.

3. Common problems and analysis of woodworking adhesive: waterproof adhesive

Adhesive penetration too fast or opening time too long: Insufficient amount of adhesive, strong absorption capacity of substrate, or affected by environmental factors: increase the amount of adhesive and shorten the opening time. Low initial strength: too short pressing time, too low hot pressing temperature, or too long opening time: prolong pressing time, increase hot pressing temperature, shorten opening time. Poor bonding strength: long opening time, insufficient pressure, difficult to bond substrate: shorten opening time, increase pressure, use new adhesive. Thickening of glue: When combined with a curing agent, if the glue exceeds its active period, use the newly prepared adhesive and try to use it up within its active period, and pay attention to stirring. Not water-resistant: incorrect proportion of curing agent, incorrect direction of tree rings, inconsistent moisture content of wood: strictly follow the proportion of glue, ensure correct classification of wood, control the storage conditions of wood, and the moisture content between adjacent substrates cannot exceed 1%.

Common Problems and Analysis of Woodworking Adhesive

4. Common problems and analysis of woodworking adhesive: cold pressed adhesive

Glue is absorbed by the board, and the opening time is too long: the amount of glue applied is too small, the absorption capacity of the substrate is too strong, or it is affected by environmental factors: increasing the amount of glue applied, shortening the opening time, and improving the processing environment. Low adhesive strength: Insufficient adhesive amount, short pressing time, and long opening time: Increase adhesive amount, extend pressing time, and shorten opening time. Surface quality is not ideal: - Surface expansion of the substrate: reducing the amount of adhesive applied. Poor wood breakage rate: glue is not suitable, substrate surface is too smooth (for hardwood): choose appropriate glue, substrate surface should be smoothed, not sanded.

5. Common problems and analysis of woodworking adhesive: hot pressing adhesive

Glue is absorbed by the board: high hot pressing temperature, small amount of glue, strong absorption capacity of the substrate, or affected by environmental factors: reduce the temperature of the infrared lamp, increase the amount of glue, shorten the opening time, and improve the processing environment. Low adhesive strength: Too small amount of adhesive, too short pressing time, too low hot pressing temperature, too long opening time: increase the amount of adhesive, extend the pressing time, increase the hot pressing temperature, and shorten the opening time. Surface quality is not ideal: - Surface expansion of the substrate: reducing the amount of adhesive applied.

6. Common problems and analysis of woodworking adhesive: post molding adhesive

Low bonding strength: exceeding its opening time: shortening the opening time, increasing the temperature of the heating lamp or air heater. Low initial strength, cracking: The elasticity of the thin plate is too high, and the temperature of the heating lamp is not high: increase the temperature of the heating lamp and reduce the feeding speed. Cracking after fabric glue pressing: Insufficient fabric glue amount: Adjust equipment, increase pump pressure, and raise temperature. Thin board and cardboard are not tightly adhered: the amount of glue applied is too large: it reduces the pressure of the pump. Low initial strength (products bonded with water glue): too much residual moisture at the glue line, unreasonable use: increase the temperature of the heating lamp, reduce the amount of glue, check the spraying equipment. Low initial strength (products bonded with water-based adhesive): Reduce the temperature of the heating lamp and increase the amount of adhesive applied.

The five core processes of precision research in the woodworking industry application technology are edge sealing, finishing, composite, splicing, and assembly. For the quality of details in your product production, IWG Woodworking Adhesive is more stringent than you! If you are interested in or have any questions about our woodworking adhesive water, please click on our online customer service or call the national unified discount hotline: 400-788-2233. IWG people are sincerely looking forward to your consultation!