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2. Conservation and restoration of leather objects - Wikipedia

   en.wikipedia.org/wiki/Conservation_and...

   The effect of heat is most often associated with long-term exposure and rapid fluctuations in temperature on the leather. When exposed to heat in either condition, the leather may lose the ability to absorb water from the air and the result is a hard or brittle state, this is referred to as hysteresis.

3. Durable water repellent - Wikipedia

   en.wikipedia.org/wiki/Durable_water_repellent

   Durable water repellents are commonly used in conjunction with waterproof breathable fabrics such as Gore-Tex to prevent the outer layer of fabric from becoming saturated with water. This saturation, called 'wetting out,' can reduce the garment's breathability (moisture transport through the breathable membrane) and let water through.

4. Waterproof fabric - Wikipedia

   en.wikipedia.org/wiki/Waterproof_fabric

   Waterproof fabrics are fabrics that are, inherently, or have been treated to become, resistant to penetration by water and wetting. The term "waterproof" refers to conformance to a governing specification [ 1 ] and specific conditions of a laboratory test method .

5. Leather conditioner - Wikipedia

   en.wikipedia.org/wiki/Leather_conditioner

   New leather contains natural oils that help make the leather soft and supple. The oils are volatile and evaporate over time. This causes the leather to shrink and stiffen, and sometimes to crack. Conditioning restores moisture, brings out natural colors, and extends the life of the leather. [1] [2] [3] A very old and widely used conditioner is ...

6. Oilskin - Wikipedia

   en.wikipedia.org/wiki/Oilskin

   The modern oilskin garment was developed by a New Zealander, Edward Le Roy, in 1898. Le Roy used worn-out sailcloth painted with a mixture of linseed oil and wax to produce a waterproof garment suitable to be worn on deck in foul-weather conditions. Oilskins are part of the range of protective clothing also known as foul-weather gear.

7. Scotchgard - Wikipedia

   en.wikipedia.org/wiki/Scotchgard

   In 1938 Roy J. Plunket, a recent hire at DuPont, discovered polytetrafluoroethylene (or Teflon)—a fluoropolymer that led to the invention of synthetic rubber. [2] His early discovery led 3M scientists to develop the formula for Scotchgard, discovered by accident in 1953 when Joan Mullan—a 3M lab technician—spilled a few drops of a fluorochemical liquid destined for rubber jet fuel hoses ...