Many furniture manufacturers and woodworking adhesive traders are concerned about how to choose veneer glue. As a Chinese wood veneer glue manufacturer with more than 10 years of experience in the research, development, production, and application of veneer glue, Blue Rhino Adhesive will share with you the relevant knowledge of veneer glue from the following aspects, hoping to help you choose veneer glue.
What is Veneer Glue?
Veneer glue is polyvinyl acetate water-based adhesive used to bond natural and technical veneer to the surface of plywood, particleboard, medium-density fiberboard, solid wood board, and other boards. Compared with ordinary white latex, veneer glue has the advantages of strong adhesion, environmental protection, water resistance, heat resistance, solvent resistance, repairability, and simple operation.
In actual applications at customer sites, there are two types of veneer glue: cold pressed veneer glue and hot pressed veneer glue. The main difference is whether heating is required during the curing process. The following explains these two types of veneer glue.
What is Cold Pressed Veneer Glue?
Cold pressed veneer glue is Polyvinyl acetate (PVA) glue, which is suitable for carpenters to use a hand roller or brush to apply the glue to the surface of the board and veneer and then press them together. The glue curing process does not require additional heating, and the curing time is relatively long, requiring 2-4 hours. It is suitable for DIY woodworking enthusiasts who do not pursue efficiency.
What is Hot Press Veneer Glue?
Hot pressed veneer glue is Polyvinyl acetate (PVA) glue, which is suitable for furniture manufacturers to apply glue to the surface of the veneer or board by hand or machine, and heat and cure it with an electric iron or heating machine. By curing it by hot pressing, the curing time can be reduced to less than 3 minutes, which is particularly suitable for furniture manufacturers pursuing high-efficiency production.
It should be noted that if you use an electric iron to heat, the temperature should be set to (140-170°C) and the heating time should be 3-10 seconds. If you use a pressurized machine, the temperature should be set to around 100°C and the heating time should be around 2 minutes. The heating time for the veneer needs to be reasonably set according to the thickness of the veneer. If the heating time is too long, it is easy to burn the veneer.
Why do furniture manufacturers choose to use veneer glue?
There are three main reasons why furniture manufacturers choose to use veneer glue. The first is aesthetics. After the veneer is attached to the surface of the board, the furniture looks more like solid wood furniture, and the grade is also improved, which is deeply loved by consumers. The second is cost. Furniture with veneer is not as expensive as solid wood furniture. It looks like solid wood furniture. From the price point of view, it is easier for consumers with limited budgets to accept it. The third is practicality. The veneer glued on the surface of furniture is more wear-resistant than solid wood furniture.
What is the order of applying veneer glue?
The principle to be followed in the order of applying veneer glue is: whichever is more difficult for water to penetrate, the veneer or the board, should be applied to that material first. The following examples of different ways of applying glue will help you better understand the order of applying glue.
If it is single-sided application, veneer is bonded to particle board, and veneer glue needs to be applied to the veneer.
If it is double-sided application, veneer is bonded to plywood, and veneer glue needs to be applied to the plywood first, and then to veneer.
In summary, when you need to bond veneer to board, you must understand the order of applying veneer glue before bonding.
How to glue veneer to plywood?
Bonding veneer to plywood is a common process in furniture manufacturing factories. Based on our more than ten years of experience in veneer glue application, we would like to share with you the specific process of bonding veneer to plywood:
1. Understand the type and thickness of veneer to be bonded.
2. Find out the glue application method and curing type at the carpentry site.
3. Use a brush or roller to apply veneer glue to the veneer and plywood, and use an electric iron (or heating device) to repeatedly press the veneer surface for 3-10 seconds.
4. Place the veneer and plywood in a dry place for more than one day before proceeding to the next process.
What factors should furniture factories consider when choosing veneer glue?
1. Type of board
The types of boards that furniture factories often use for veneer are medium-density fiberboard, particleboard, plywood, solid wood board, etc. The density of different boards will lead to different permeability of glue. Therefore, when choosing veneer glue, it is necessary to consider the water absorption performance of the board to avoid the glue being completely absorbed by the board, resulting in a lack of glue between the veneer and the board.
2. Types of veneer
Common types of veneer include natural veneer and technological veneer. Technological veneer is more difficult to bond than natural veneer, and the choice of veneer glue is also different. It should be noted that the thickness of the veneer is also a key factor in choosing glue. Thick veneer (thickness greater than 0.5mm) requires veneer glue with strong adhesion, while thin veneer requires veneer glue with poor permeability, which can effectively prevent the glue from penetrating the veneer.
3. Curing method
The curing methods of veneer glue are divided into natural curing and heat curing. The natural curing method is relatively simple. You only need to apply the veneer glue on the board or veneer, bond them together, and wait for the glue to dry naturally, which usually takes 2-4 hours.
The heating curing method is more complicated. For small-area boards, an electric iron can be used; if the board area is relatively large and high efficiency is required, a flat heating device is required for heating. The heating time varies depending on the equipment, ranging from 3 seconds to 5 minutes.
In summary, when furniture factories choose veneer glue, there are three factors that need to be considered: the type of board, the type of veneer, and the curing method.
The above is the relevant knowledge about how to choose veneer glue. If you have any questions about veneer glue in daily production and use, you can contact us. Blue Rhino Veneer Adhesive China Manufacturer will respond to your questions as soon as possible.
