How to use Wood Processing Glue in your House?
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 crosslinking reaction. The surface temperature of wood is closely related to the holding time of plywood. Plywood glue in different temperatures, the use time is different: in summer, the mixed board can be used for 30 minutes; In winter, the mixed plywood can be used for 60 minutes.
2. Mixing
The main agent and the curing agent should be mixed strictly in accordance with the weight ratio of 100:15, and should be fully stirred to average. After mixing the plywood, it should be used up within the maneuverable time. Do not mix wood chips, dust and other impurities or add water when mixing. Do not mix the main agent and curing agent with each other before use. Keep it sealed after taking the glue.
3. Wood moisture content
After drying the wood through natural moisture return, the moisture content should be controlled within 7~12%. When the moisture content of wood is less than 7%, it may cause the wood to permeate too strong and cause the adhesive surface to lack of glue leading to cracking phenomenon. The moisture content of the wood is too high, which will directly lead to poor permeability, difficult to form glue nails, and the cross-linking reflection is not complete, which may cause the phenomenon of opening glue. The critical moisture content difference of wood should be controlled within 3%.
4. Wood processing accuracy
Wood processing accuracy should be within 0.15mm. The adhesive surface of wood should have no processing defects of "nibbling and finishing". The straight Angle of the wood is good. The adhesive surface of the wood should have no "planing marks, saw marks, carbonization" and other phenomena. Do not use wood whose adhesive surface has been contaminated by grease or dust for bonding.
