Gel Wheelchair Cushions
Gels or elastomeric polymers are excellent media for pressure redistribution. Gels flow away from high-pressure areas, thereby evening the pressures over a given area of load. Elastomeric polymers stretch in all directions. This property allows them to accommodate higher-pressure areas. One disadvantage of gels and polymers is their high weight. As well, gels can flow totally away from high-pressure zones and allow bottoming out. Both gels and polymers are encased; gels so that they won’t leak and polymers because they are inherently sticky. The “flow” properties of both media mean that they need to be used as overlays on contoured (usually foam) bases in order to provide positioning.
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