Urea-Formaldehyde Plastics

Urea-Formaldehyde Plastics
General Physical Properties: 
Vary greatly depending on fillers, laminating materials, etc.
Hard and rigid. Scratch resistant.
Strong and tough if appropriate filler used.
Slight shrinkage may follow moulding.
Heavier than water. (S.G. 1.4 – 1.6) 
Absorption takes place, with loss of dimensional stability and increase in brittleness. 
Thermosetting, and do not soften.
Good stability to moderate temperatures and perform satisfactorily over range — 70°F – 170°F.
Darken and decompose at higher temperatures.
Burn with difficulty. 
Solvents and Chemicals: 
Good resistance to most solvents and common chemicals. Unaffected by detergents, cleaning fluids (e.g. carbon tetrachloride), gasoline (petrol), nail polish and remover, alcohol, oils, greases. 
No effect. 
Slight deterioration. 
Good insulation with resistance to arcing. Electrical properties do not deteriorate appreciably when moisture is absorbed. 
Resins and syrup. 
A range of materials is produced for many purposes.
Examples of Uses: Foundry core production; surface coatings; finishes for textiles, paper, etc.; adhesives; lamination.
Moulding Materials. 
A wide range of moulding powders is produced, in all shades including white; translucent or opaque. Used for compression and transfer moulding.
Examples of Uses: Electrical equipment, e.g. plugs, switches, etc.; buttons; cups, saucers and plates; toys; clocks; radio cabinets; lighting fittings; kitchen equipment.
Laminated Materials. 
Sheets and panels are made in a great variety of colours and patterns from urea-formaldehyde resins and fabric, paper, wood veneer, etc.
Examples of Uses: Lighting fittings; building panels; signs.