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What is "SPF" - Definition & Explanation

(Sun Protection Factor) SPF measures the effectiveness of sunscreen on the body. the test for SPF is done by using a living organism or body to measure the length of time it takes for the skin to redden without coverage or protection.

Some other terms

Some more terms:

A manufactured fiber similar to acrylic in characteristics and end-uses. Modacrylics have a higher resistance to chemicals and combustion than acrylic, but also have a lower safe ironing temperature...
The process of applying heat and moisture to fabrics. Steaming is used to fix dyes applied in continuous dyeing processes and printing. It is also used to 'fix' fabrics such as wool and silk and can...
A woven is a cloth formed by weaving. It only stretches in the bias directions (between the warp and weft directions), unless the threads are elastic. Woven cloth usually frays at the edges, unless...
A sarong is large sheet of fabric, often wrapped around the waist and worn as a skirt by men and women in southeast Asia and Pacific islands, particularly in Indonesia and Malaysia. The fabric is...
BIMINI top: A canvas roof, attached to a collapsible frame, that provides shelter/shade from the sun on the flying bridge of a pleasure craft. Usually made from one of the popular outdoor marine...

Companies for SPF:


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