1. Add 30g of polyvinyl alcohol into a heating pot with 400g of water, stir and heat to 90- 100℃. ..

2. Keep the temperature and stir for about half an hour to completely dissolve the polyvinyl alcohol.

3, cooling to below 80 DEG C, adding 300g of polyvinyl acetate (50%) and 20g of thickener, and adding water to the rest until the total amount is 900g, and the above is component A. ..

4. When in use, add component B:100g of white cement containing a mixture of tricalcium silicate and dicalcium silicate or100g of hemihydrate gypsum and its retarder.

And 5, sizing after fully and uniformly stirring to realize pollution-free cold pressing production of the wood-based panel.