How long should polyurethane cure? - Printable Version +- Woodnet Forums (https://www.forums.woodnet.net) +-- Thread: How long should polyurethane cure? (/showthread.php?tid=7329502)

How long should polyurethane cure? - Ohio Mike - 04-15-2017 I built a couple of benches for my daughter's house.  They are going to be placed next to the back door where the Grandkids will sit and tie their shoes, toss their coats and backpacks on them, and generally be rough with them.   It's been 4 days since the final coat of polyurethane and they're fully dry to the touch. I have them sitting in my garage waiting to be delivered but am wondering if waiting a few more days would be to my advantage?  Mike RE: How long should polyurethane cure? - fredhargis - 04-15-2017 It wouldn't hurt a thing to wait another couple of days,varnish takes a very long time to fully cure. But to be honest it's usually cured enough after 4 days for all but the very roughest treatment, at least in my experience. Some of it has to do with just how thick the finish is, I'd say anything more than 3 regular coats will do well with some more time. RE: How long should polyurethane cure? - MikeBob - 04-15-2017 I would think your okay, if you cant smell it it is pretty much cured. RE: How long should polyurethane cure? - Herb G - 04-15-2017 I'd set them in the sun for a day so any u/v reaction will occur & harden the finish completely. But that's just me. RE: How long should polyurethane cure? - Ohio Mike - 04-15-2017 Thanks for the responses guys.  I appreciate it.  Mike