What do you know about the glue that carpenters can use?

Woodworking adhesive, in a narrow sense, refers to the adhesive used in woodworking industry. Broadly speaking, woodworking glue can be used in a wide range of industries, not just woodworking industry. Adhesives are essential in the woodworking industry. It is no exaggeration to say that as long as they are properly used, they can turn decay into magic, turn waste into treasure, make great use of small talents, optimize the use of inferior materials and make full use of outstanding talents. So, what kinds of woodworking adhesives are there?

I. Types of Woodworking Glue

1, woodworking glue

Woodworking glue is specially used to bond all kinds of indoor wood products and furniture. It is milky white, which can be washed with clean water when it is not dry, and transparent after it is dry. Non-toxic and pollution-free wood.

Can bond all kinds of rough wood, cloth, paper, leather and other materials (MDF can not be bonded). Wooden handmade products? Bonding or repairing furniture, wooden frames, various wooden stools, wooden wine racks, wooden cabinets and broken wood.

2, outdoor woodworking glue

Outdoor woodworking glue is industrial-grade white latex. You can wash it with water when it is not dry. When it is dry, it is translucent, grindable, non-toxic, colorable and waterproof. Glued MDF. Heat resistance as high as 1 10℃, specially used for woodworking or? Manufacturers bond various wood products.

Suitable for bonding all kinds of soft and hard wood, MDF medium density fiberboard, fire board, sawdust and other materials and indoor? Mother furniture, wood ... bonding work.

3, polyurethane woodworking glue

Polyurethane woodworking adhesive is a high-grade woodworking adhesive. Brown, light yellow after drying, will it? Expansion, so it is also suitable for bonding/filling tiny cracks. Non-toxic, pressure resistant, acid and alkali resistant (wood glue meets acid and alkali? Reduce adhesion). After drying, it can be polished, dyed and painted, and its heat resistance is as high as 140℃.

Suitable for bonding indoor and outdoor wood, glass, density board, metal, cement, porcelain and most plastic products. Wood can bond almost all materials.

Second, the use of woodworking glue

1. temperature

In different seasons, it is necessary to measure the working environment temperature and wood surface temperature in time. To some extent, the temperature determines the speed of glue crosslinking.

The surface temperature of wood is closely related to the holding time of jigsaw puzzles.

At different temperatures, the service life of glue is different: in summer, the mixed glue can be used for 30 minutes (that is, the earlier it is used, the better); In winter, the prepared glue can be used for 60 minutes.

2. Rubber mixing

The main agent and curing agent should be mixed in strict accordance with the weight ratio of 100: 15, and fully stirred evenly.

The mixed splicing glue should be used up in a controlled time.

It is forbidden to mix impurities such as sawdust and dust or add water when mixing glue.

It is forbidden to mix the main agent and curing agent before use.

Pay attention to sealing and retention after taking glue.

3. Water content of wood

After natural moisture regain, the moisture content of dry wood should be controlled within 7- 12%.

When the moisture content of wood is lower than 7%, it may cause the phenomenon of excessive water permeability and exudation of wood, resulting in the lack of glue on the bonding surface and cracking.

The high moisture content of wood will directly lead to poor infiltration and exudation, and it is difficult to form glue nails, and the cross-linking reaction is not complete, which is easy to lead to glue opening.

The critical moisture content difference of wood should be controlled within 3%.

4. Wood processing accuracy

The accuracy of wood processing should be within 0.65438 0.05 mm.

The bonding surface of wood should be free from processing defects such as "gnawing head and finishing".

This wood has a good right angle.

There should be no "planing, sawing and carbonization" on the bonding surface of wood.

It is forbidden to use wood whose bonding surface has been polluted by grease, dust and so on for bonding.

The above are the types of woodworking adhesives introduced by Bian Xiao, hoping to help you. For more information about the types of woodworking glue, please continue to pay attention to the decoration of Tuba rabbit.

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