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Google search for "wash-in waterproofing". Several are available; Nikwax TX being a popular brand which is at least water-based and PFC free. You use 50ml per garment (hand wash process) so you get more proofing for one bottle than the sprays. Nikwaxare also better than many companies for environmental reporting - see https://www.nikwax.com/en-us/...


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Historically in the colonial era, cloth was waterproofed using a 1:1 mixture of boiled linseed oil and beeswax, heated so it would leech into the fibers. For more temporary use, beeswax can sometimes be rubbed directly on the cloth. Linseed oil will provide a much better and more permanent effect, but it is also very flammable. Jean-Paul Calderone brings ...


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Lanolin, produced by sheep, has water repellent properties. It is relatively inexpensive and compact. Application is by rubbing or brushing so it doesn't have the waste associated with aerosols. Lanolin has other uses (eg as a skin moisturizer) so having some extra on hand is useful in other ways. It is environmentally innocuous (it will fully biodegrade ...


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