Polyurethane advantages
The excellent smoothness and uniformity of polyurethane also make it eminently suitable for making large-sized objects and those of varying thickness at a very reasonable cost. By using aluminium alloy moulds it is possible to achieve considerable savings on initial investments thus making rigid polyurethane technology more competitive for medium-sized runs than other injection moulding methods.
Characteristics:
- it offers excellent resistance to mechanical stresses
- it has a good surface hardness
- when coated with halogen-free fire-retardant products, it is highly flame-proof
- it is also resistant to adverse weather conditions
- even where ribbed and reinforced pieces are concerned, there are never any shrinkage cavities and warping
- it guarantees chemical inertia upon contact with very many organic and inorganic substances (including the most common acids)
- it has excellent electrical and heat insulating characteristics
- it offers a surface that can be fully coated with all kinds of coverings, including conductive paints
- it permits inserts in metal or other materials to be sunk into articles during moulding
- it can be disposed of as non-hazardous inert waste
![solid polyurethane advantages resistance](http://rgseuropa.it/wp-content/uploads/2016/07/vantaggi-poliuretano-rigido-strutturale-resistenza-durezza.jpg)
![solid polyurethane advantages elastic](http://rgseuropa.it/wp-content/uploads/2016/07/vantaggi-poliuretano-rigido-compatto-elastico.jpg)