This is because of its design to prevent serious injury to humans.
Visco memory foam health hazards.
Greener versions of memory foam use plant based ingredients like soybean oil in place of some of the petroleum derivatives memory foam s distinguishing feature is that it softens in response to heat and pressure.
The temperature sensitive memory foam was initially referred to as slow spring back foam.
Memory foam was developed in 1966 under a contract by nasa s ames research center to improve the safety of aircraft cushions.
Most called it temper foam.
It is a blend of polyurethane foam that was developed for airplane cushions by a nasa contract in the 1970s.
A memory foam mattress is one made from viscoelastic foam a type of high density polyurethane foam.
It is simply difficult to measure.
The polyurethane foam association an industry group as well as the environmental protection agency both say that finished memory foam is inert and does not represent a health hazard.
Its primary function was to keep astronauts safe during missions in space.
Visco elastic foam is another term for memory foam.
According to the epa s review of mdi and tdi completely cured products are fully reacted and therefore are considered to be inert and non toxic.
As it is memory foam is an excellent shock absorbing material.
It offers safety in helmets pads and plenty of other equipment.
The difference between visco elastic foam and other types of polyurethane foam is its slow response and low resistance.