AND AN­OTHER THING!

Boating - - BOAT DOCTOR | BOATINGLAB -

We won­dered if sun­screen sprayed on clothes would in­crease their UPF. We got some No-Ad 50 UPF aerosol spray and doused a spot on a white shirt that scored poorly. The area we cov­ered with sun­screen blocked nearly 100 per­cent of UV light in our test, and after one wash still pro­vided good pro­tec­tion. In­ter­est­ingly, the spray was in­vis­i­ble ex­cept when UV light was shone through it. The sun­screened fab­ric was dis­tinctly darker than the un­treated fab­ric. So, if you don’t like sun­screen on your skin, treat­ing your gar­ment def­i­nitely cuts UV light and keeps your skin grease- and chem­i­cal-free.

No-Ad SPF 50 Sun­screen turned this fail­ing-UPF fab­ric into a win­ner. The darker vi­o­let hue is the pro­tected por­tion.

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