subject: Combining Durability With Elasticity In Polyurethane Castings [print this page] There are several factors which make polyurethane casting a preferred option. Polyurethane molding and polyurethane casting both depend on the versatility of polyurethane. You can add metal powders to transparent resins to give polyurethane castings a look like a metallic cold cast. The makers of many of those beautiful household decoration pieces like candle holders and wall hangings do so. The end result is that it looks like a metal table or wall decoration piece without being heavy or as expensive as a completely metal forged or cast piece would be.
Polyurethane rollers used in gym machines and in curlers in beauty parlors demonstrate how diverse applications are possible. In both instances the ability of polyurethane to withstand stress and strain are used. Another advantage of polyurethane rollers is that the material being lightweight they can be used in applications where they need to turn fast. Not only do polyurethane rollers have the advantages over metal and rubber, they feature high tensile strength, the maximum force a material can withstand without tearing, as well as excellent elongation and dimensional stability. One the one hand, they are flexible at extremely low temperatures, yet on the other hand have high heat resistance.
The flexibility of polyurethane moldings make them ideal for curved surfaces and arched doorways. Flexible polyurethane molding can be stained, painted, or sealed just as ordinary molding, but without having to prime the surface first. It also resists warping, wearing, splitting, or mildewing. You can bend it or twist it round into shapes that were hitherto considered a challenge. If you need to use it for outdoor use as well it is a great material to do so since it will not mildew.
Polyurethane molding be processed into very thin items and have much thicker sections without a curing gradient. Polyurethane is often considered the best substitute for plaster and one is seeing more and more polyurethane moldings on ceilings which need to be ornamental too. Of course, if you need to carve intricate designs on the moldings it is advisable to use polyurethane foam.
