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。
Make sure you have a waterproof pouch for your camera.
要确保你的相机有防水罩。
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
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