2388 Меламин мочевины формальдегидных смол порошок

melamine urea foramaldehyde resin power 2388 Melamine urea formaldehyde resin powder Applicant Bentwood, Laminate board, Continuous layers board Physical properties A. Powder index Appearance White or yellowish free flowing powder Fineness Over 95% passing 100 mesh standard sieve Free Formaldehyde 0.27-3% Moisture Content ≤2% Storage Life Stored in cool place with sealed package at 25°C at least 9 months B. 50% solution, powder: water=2:1(25°C) PH 8.0-9.5 Viscosity 1500-5000 mPa.s Pot life 4-5 hours Strength After boiled 4 hours at 100°C , the wood still kept shear shrengthen(could not open) Use methods The powder ratio of powder: water is 2:1 by weight to fully dissolve in water, until no solid matter in the presence of liquid. Then add the hardeners. The use of curing agent decides by the ambient temperature and the pot life. The modulation of the glue can immediately gelatinize. Hot press operation According to the above usage, pressure is 3 -7 minutes at 100 °C . Execution standard Japan JAS China impregnated peel test standards I. The international standard E0 and E1 level free formaldehyde content. Packing 2-ply bags with inner plastic bag and outer fabric bag 20kg/bag or 25kg/bag Safety precautions According to the basic operation of the chemical products, the powder can be safe use. Should work under conditions of good ventilation and avoid inhalation of dust or direct contact with the skin. Before meals and after operation, clean with soap and water. If the powder accidentally splashed into eyes, flush with water use, if necessary, seek medical advice. The suggestions given in these notes are based on data gained from experiments and experience. However, since operating conditions in the user’s plant is beyond our control, we cannot assure responsibility for any risks or liabilities, which may result from the use of our products.