What is in certain sunblocks that make them waterproof?

Subject: What is in certain sunblocks that make them waterproof?

Date: Wed Nov 17 08:38:20 1999
Posted by bri
Grade level: 10-12 School: No school entered.
City: No city entered. State/Province: No state entered. Country: No country entered.
Area of science: Chemistry
ID: 942845900.Ch

Message:


I could basically use any info on what makes sunscreen waterproof.  If that's tons of stuff, then just the ingredients would be good to have.

Re: What is in certain sunblocks that make them waterproof?

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