Wood adhesive(Urea formaldehyde resin)

Woodadhesive (Urea formaldehyde resin)isone kind of Urea-formaldehyde resin powder Use Furniture assembly, wood veneer, wood sheet of laminated, curved wood adhesives, wood adhesive Feature 1. Wood adhesive is made by the urea-formaldehyde resin powder, the reinforcing agent and the curing agent. 2. Under the conditions of the cold bonding, thermal bonding, and high-frequency heating, after the curing agent mixed with the appropriate modifier (such as flour), can be used in the glue industry. 3. Wood powder isn’t being flammable. Specifications AppearanceWhite, free flowing powder Viscosity (glue: water = 2:1) (5000±500)mPa.s PH (glue: water = 2:1) 7.25±0.25 Proportion (glue: water = 2:1) about 1.290g/cm ³ Package Standard bag, net weight 20kg Storage 1. The woodadhesive is sealed in original containers.2. Suitable temperature3. Stored in dry placePreparation of rubber mixture 1. Water heated to a suitable temperature 2. The wood glue dissolved in warm water 3. Adding the curing agent after the mixture cool Glue mixture ratios (by weight) Wood powder 100Water 50±10Activity of When the temperature below 30 °C, the activity of glue is between 1 to 2 hours Wood preparation 1. Board thickness is uniform 2. Wood surfacekeeps clean 3. Wood moisture content was (9±3) %Adhesive volume It depends on the amount ofglue bonding material surface quality, the general amount is (175±25) g / m². Pressure Pressure depends on the surface of the material's density, surface smoothness, thickness tolerances, as well as paving the time. Normal pressure is 0.5-1.6MPa (5-16kg/cm ³)Pressure time Typically, when the temperature between 25 to 35 °C, the pressure test time is between 6 to 7 hours. Clean Rubber mixing equipment and coating equipment should be cleaned with warm waterSafety precautions 1. Please wear gloves, avoid direct contact with the glue. 2. Under good ventilation conditions, to prevent splashing into eyes. 3. Before and after operation, keeping clean.