This is a Low Resilience P. U. Foam. Its visco-elastic properties cradle the body and reduce the stress on spine and provides extra comfort. It was first developed by NASA to counter the loss of gravitational force. Applications as in mattress toppers, spine care mattresses, in high comfort cushioning.
The burning behavior of foam is modified, altered by adding special chemicals which retards the propagation of fire. Various Standards are complied like BS - 5852, CA - 117, IS - 7888, UL - 94, MVSS - 302 etc. These are applied to cushioning material in automobile seats and furniture cushions for the safety purpose so as to give enough time for evacuation.
P. U. Foam Cushions are used as seats for providing comfort in Furniture. Available in 50, 40, 32, 28 and 23 densities and several sizes. They are easy to fabricate and can be cut to any size or shape. Support and Comfort Factor are very important for Cushioning. Density above 32 is recommended for seating application. 28 & 23 Densities are ideal for backrest and armrest respectively. For high durability seat and berth cushions foam in between 45 to 55 density is used. High Resilience 50 density foam is used in recliners and high end sofas.
These foams are used as bad conductors of heat and it absorbs the vibrations caused by diesel motor engines etc. Used in Automobile segment & aircrafts. Foam is used as thermal insulating material.
These foams are ideal for filtration and pre-filtration of air in automotive industry. Polyester based Reticulated Foams are stable with petroleum products. Polyether based Reticulated Foams are not affected by water and are thus ideal for water filtration.
For support & comfort, Bolsters & Back Cushions in different sizes are available. It facilitates not only extra comfort in seating arrangement but also add to the aesthetic value. Apart from Foam, Coir is also used abundantly as cushioning material especially in the countries having tropical climate.
The open cellular structure of foam absorbs the sound waves and has noise reduction coefficient of 0. 7 to 0. 8. These foams can also be supplied in profiled sheet form. The typical usage is in DG Set Canopy, Consoles, building walls etc.
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