Does waterproof spray work on tents? Yes, but only if used properly. And it does not double as a seam sealer.

Should I waterproof spray my tent?

You should waterproof new tents prior to using them for the first time. Rainfly and floor seams usually need more sealant and inconsistencies in the manufacturing process can cause other seams to leak. The additional UV and rain protection will also extend the tent's life.

Do waterproofing sprays work?

“Waterproof sprays actually block the pores in most shoes, especially leather, creating a sauna like effect inside that leads to smellier shoes,” says David Mesquita, the vice president of Leather Spa. Waterproof sprays, he says, can also make it more difficult to clean, condition and polish your shoes.