Generally set by solvent evaporation. They are generally of low strength and are
susceptible to moisture and mould. Their use is restricted to the joining of low strength
materials. Natural adhesives include animal glues, fish glues, vegetable glues and casein.
A vast quantity of natural adhesives are used throughout the world mainly based on starch and casein and mainly
in the packaging industry for labels and low cost packaging tape
Notes Materails bonded
Made from collagen, (Skin/bone) with sugar and glycerol added for
flexiblily. Materials Bonded...: Wood, Leather, Porous materials
Improved temperature resistance, resistance to water compared to above.
Materials Bonded...:Wood joints, Interier wood, Leather, Porous materials, Paper /Cardboard
Based on starch, dextrine. Supplied as a powder for mixing with water. Low strength.
Low resistance to water/high temps.
Materials Bonded...:Interier Wood, Paper /cardboard
Made from milk precipitated with acid. Supplied a powder for mixing with water.
Improved properties compared to all above glues.
Materials Bonded...:Wood, Paper asbestos products