Memory Foam Vs. Poly Foam
There are a seemingly unlimited number of options when it comes to mattresses and other sleeping surfaces. Memory foam is one preferred option for those who like to rest in optimal comfort. Polyfoam shares a common ancestor but is used for different purposes.
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Polyurethane
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Polyurethane can easily act as rubber.
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Polyurethane provides the base for both memory foam and polyfoam. It is a very versatile material that varies widely in hardness; it is an ideal replacement for rubber and countless other materials, with the added benefit of being very tough and resistant to abrasions and weather.
Polyfoam
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Polyfoam is useful for insulation in building projects.
no window image by timur1970 from Fotolia.com
Polyfoam is typically designed to be a relatively rigid but pliable material that can be used as an adhesive in packaging and in molding tasks. It can provide insulation and be manipulated during construction projects.
Memory Foam
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Memory foam is designed to optimize sleep comfort.
sleep image by DXfoto.com from Fotolia.com
Memory foam is most commonly employed as a very comfortable sleeping surface. It is highly flexible, with added elasticity to help it conform to the user's body. It does not need to be as dense or firm as other polyurethane materials, since it is designed for comfort and not utility.
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References
- Photo Credit pink foam image by laurent dambies from Fotolia.com rubber image by vashistha pathak from Fotolia.com no window image by timur1970 from Fotolia.com sleep image by DXfoto.com from Fotolia.com
