Nowadays, the decoration materials used for decoration are very tricky. One kind of jigsaw glue is used, which is used for bonding wood. The glued parts have extremely high glue strength. The glue has good heat resistance and solvent resistance. The following editors will introduce the use method and precautions of puzzle glue to you, I hope to help you.
How to use puzzle glue
1. The wood moisture content is preferably 8-12%;
2. Mixing ratio: puzzle glue: curing agent = 10: 0.8 ~ 1 (weight ratio).
3. Add the curing agent to the glue during use and stir evenly. It is best to use within 1 ~ 2 hours. It is found that the phenomenon of bubbles is normal during use. If there are too many bubbles, it is necessary to stir a few times until the bubbles naturally sink before using.
4. Depressurization: It needs to be pressurized for a long time. Small areas can be depressurized after 1.5 hours of pressurization, but it must be 3 hours after depressurization before transferring to the next process.
Eight precautions for using puzzle glue
1. Wood control
1. Control of water content: less than 14%;
2. Keep the splicing surface smooth, and there should be no wavy surface or curved or twisted surface. For the wood that is easily deformed (such as oak, ash, etc.), the planed day must be finished on the same day, and the overnight plan must be replaned;
3. Before splicing, all wood dust and dirt on the surface of the wood must be removed.
2. Method of adjusting glue
1. When mixing the curing agent, the amount of glue is determined according to the size of the glue container. Only one third of the volume can be used in the glue container to adjust the glue. Otherwise, the glue will foam and overflow.
2. It is best to use round bottom plastic barrels to adjust the glue. This kind of container can easily mix the curing agent evenly.
3. Do not add water or other substances to the glue, otherwise it will cause solidification or a sharp drop in strength.
4. The puzzle glue with the curing agent is generally required to be used up within 12 hours (the effect is more significant after the foam is expanded).
5. The unused curing agent must be strictly sealed and stored, and no water can be mixed in, so as to avoid hardening and scrapping.
6. Once the amount of curing agent is confirmed, it cannot be changed arbitrarily, otherwise it will seriously affect the key functions such as adhesive strength and water resistance.
3. Control of the amount of glue
The user should determine the amount of glue applied according to the temperature and humidity of the space at the time. When the space temperature is low, the humidity is high (below 80%), and the wood is hard, the amount of glue is less; when the space temperature is high, the humidity is low (below 60%), and the wood is soft, the amount of glue is more.
4. Glue method
Due to the high viscosity (consistency) of the glue, it is best to use a manual glue machine, pig brush or rubber spatula to apply glue evenly. The amount of sizing is generally controlled between 150g-250g / m (hard wood sizing 120g-150 g / m, pine softwood sizing 120g-250 g / m). Workpieces should be spliced ​​together as soon as possible after application of glue to prevent film formation on the surface of the colloid, so as to avoid false splicing and easily open the glue.
5. Pressure method and time
No matter what kind of pressure method is used, it is necessary to maintain a multi-point uniform pressure of 30-50cm one pressure point. The control of the pressure time depends on the temperature and air humidity of the work site. Except for the pressure time of the disc puzzle machine of 30-40 minutes, other pressure methods are normally defined as (at 25 ° C, the humidity is 60% Below) 2-4 hours. When panels are assembled under high temperature and low humidity conditions, the pressurizing time can be shortened to about one hour; otherwise, it takes 4 hours or longer.
6. Check during compression
Pay attention to prevent the wooden strips from being drawn out (uneven and small heads are most likely to appear). If you pull out, you need to loosen the pressure to reset it, and you cannot reset it with pressure; see if there is colloid overflow in the joint seam. Or the time to be pressed after applying glue is too long, and this phenomenon will be corrected immediately. The pressure inspection process cannot be ignored.
7. Maintenance period after pressure relief
In the process of solid wood paneling or tooth jointing, in order to prevent the opening of glue, the stacking maintenance process should be carried out after the spliced ​​workpieces are relieved of pressure. According to different wood under different climatic conditions, it is necessary to set a curing time period to ensure the normal use of the next process. We recommend that: when the temperature is low, the humidity is high, and the wood is hard, the best time is Set at 3-5 days: When stacking and curing under the conditions of high temperature, low humidity and soft wood, the best time is set at 1-2 days.
8. Unused residual glue treatment
If the puzzle glue with the curing agent cannot be used up for a while, it must be sealed and temporarily stored, waiting for the next time to continue to use it (can not be exposed to the air for a long time to prevent dry skin), will not affect the quality of splicing.
The above is the introduction brought to you by the editor. If you want to know more related knowledge, please continue to pay attention to Qijia consultation, please stay tuned for more exciting consultations.
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