Oil
The oil on the skin.
Yes, linseed oil can effectively waterproof wood by penetrating the surface and creating a protective barrier against moisture.
Ceramic
Acrylic paint is waterproof and suitable for outdoor use.
Samsonite Luggage Winfield 20in. Carry-On Spinner is waterproof as is some of the Travelpro line.
Sebum is the oil secretion produced by sebaceous glands in the skin. It helps to waterproof and lubricate the skin and hair, keeping them from becoming dry and brittle.
Depends on what kind of duck tape.
You should use scotchguard waterproof coating on your sofas to protect it from spills.
For grooming and to spread oil from their oil gland to help keep their fur waterproof.
NO,your skin is waterproof,oil-proof and paint-proof etc.(unless,you ignite the oil,which would be STUPID)
Vinyl and PVC are both cheap waterproof materials, but they don't breathe and can get kind of hot. I don't think of them as a very good material, but they are waterproof, and good if you think so.