The latex will make the fabric waterproof, but be mindful that latex sticks to latex.

胶乳会让布片防水，但注意它们可能会互相黏住。

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The fabric could be soaked in linseed oil to make it waterproof.

经过亚麻籽油的浸泡，这种帆布能够防水。

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Make sure you have a waterproof pouch for your camera.

要确保你的相机有防水罩。

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The Iron Duke was the first machine in the UK used to roll sheet rubber and cotton together and vulcanise them to make waterproof fabric.

BBC: Iron Duke set for return to Bradford on Avon

Serbin pondered: How do we take a similar concept and make it waterproof?

CNN: Tracking devices keep tabs on hotel linens

His maintenance-free bike uses a "secret" mix of organic materials to make it waterproof and fireproof, and is then lacquered to give it a friendlier appearance.

ENGADGET: Cardboard bicycle 'close to mass production': tough, green and just $20