Polyurethane or "Urethane" is a unique material that offers elastic memory of rubber with toughness and durability. It is available in a variety of hardness levels and sizes as it is commonly cast.
The properties of a polyurethane are greatly influenced by the types of isocyanates and polyols used to make it. Long, flexible segments, contributed by the polyol, give soft, elastic polymer. High amounts of crosslinking give tough or rigid polymers. Long chains and low crosslinking give a polymer that is very stretchy, short chains with lots of crosslinks produce a hard polymer while long chains and intermediate crosslinking give a polymer useful for making foam. The crosslinking present in polyurethanes means that the polymer consists of a three-dimensional network and molecular weight is very high. In some respects a piece of polyurethane can be regarded as one giant molecule. One consequence of this is that typical polyurethanes do not soften or melt when they are heated...they are thermosetting polymers. The choices available for the isocyanates and polyols, in addition to other additives and processing conditions allow polyurethanes to have the very wide range of properties that make them such widely used polymers.
Polyurethanes are used in the manufacture of non-flexible, high-resilience foam seating; rigid foam insulation panels; microcellular foam seals and gaskets; durable elastomeric wheels and tires (such as roller coaster, escalator, skateboard wheels, automotive suspension bushings; electrical potting compounds; high performance adhesives; surface coatings and surface sealants; synthetic fibers (e.g., Spandex); carpet underlay; hard-plastic parts (e.g., for electronic instruments); condoms and hoses.
UltraPoplin™ PES C240
UltraPoplin PES C240 is 7.1 oz. and is knitted 100% polyester with a digital coating on one side allowing for a vibrant print quality. The poplin texture has a slight stretch, making it ideal for expanding over frame systems and structure applications.