Glue may seem like an ordinary household item, but its history stretches back thousands of years. Long before modern bottles of white glue, super glue, or tape, people discovered that sticky natural substances could help them build tools, repair objects, make art, and construct furniture. The story of glue is really the story of human ingenuity: finding ways to make things hold together.
Some of the earliest adhesives were made from materials
found in nature, such as tree resin, plant gums, tar, and animal products. It is
believed that prehistoric people used sticky substances like birch tar to
attach stone points to wooden handles, helping them make stronger spears, axes,
and other tools. It is known that Egyptians used animal-based glues in
woodworking, furniture making, papyrus production, and decorative objects,
while Greeks and Romans used adhesives in mosaics, construction, and everyday
repairs.
For many centuries, the most common glues were made by
boiling animal hides, bones, or connective tissue to extract collagen. These
“hide glues” were widely used by cabinetmakers, instrument makers, bookbinders,
and artists. Although they were not waterproof and had to be heated before use,
they were strong, reliable, and could be softened again with heat and moisture,
making repairs possible.
It was during the nineteenth and twentieth centuries, glue
changed dramatically. It was in the 1800s that natural rubber adhesives
appeared, and with the growth of chemistry came new products such as casein
glue, nitrocellulose glue, epoxy, polyurethane, and synthetic rubber adhesives.
Of course, wars and industrial manufacturing speed things up as stronger, faster, and more
specialised adhesives were needed for vehicles, aircraft, packaging, and
construction.
Today, adhesives are everywhere: in schools, homes,
hospitals, electronics, cars, packaging, and even spacecraft. Modern glues can
be waterproof, heat-resistant, flexible, instant-drying, or specially designed
for medical use.
So from way back when to now and beyond there will many
different types of ways to stick on thing to another.