What is latex?
Natural latex is a milky white liquid that is extracted from the Hevea-Brasilienis tree, better known as the rubber tree. Rubber trees are native to South America and were spread around the world in the 19th century because of their great value. Rubber trees are tapped through a method that is very similar to maple trees being tapped for their maple syrup.
What is synthetic latex?
Synthetic latex is a synthetically produced compound that mimics the properties of natural latex. Rather than being harvested from rubber tress it is produced from petrochemicals. Several types of synthetic latex exist but SBR (styrene-butadiene rubber) is the most common type of synthetic latex used in the production of synthetic latex foam.
What is Polyurethane?
Polyurethane was developed during world war ll. It was initially developed in order to replace rubber and was extremely difficult and expensive to obtain. Today it is used as a coating for various objects such as footwear, fridge freezers, steel railway carriages, wooden furniture and as well as gaskets for cars. Polyurethanes are polymers and best thought of, as chain of three-dimensional structures made up of long, repeating smaller units called monomers. Other well-known polymers include nylon, silicon, polyethylene, polypropylene and polystyrene.