A synthetic glue for plywood, particle board and wood products. Soak resin in water 100 parts : 160 parts water. Mix well into a smooth paste. Apply to clean wood surface and clamp till set overnight. An inexpensive adhesive that sets hard and rigid suitable for papier mache and sand molding.
Urea formaldehyde is a water base binder and it powder dissolves easily in water. Can be used as a binder for particleboard, plaster of paris, calcium carbonate powder, cellulose fibres and etc. To strengthen plaster, dry mix plaster powder with urea powder in 1:1 ratio by volume. Mix well before adding to gauging water in ratio of 3 parts by volume plaster/urea and 1 part clean water. Mix to a smooth slurry before casting. Though slower to set, the resultant mix set as hard powder free plaster impervious to water absorption.