Mike_L Posted July 31, 2015 Share Posted July 31, 2015 I've found plenty of info on this website regarding humidity issues but not much about high temps so I'm throwing this out to you guys/gals for your opinions. This time of year in Japan is broiling with temps in the low to mid 90s and medium to high humidity. Things will start to cool down early/mid Sep. Electric rates prohibit running A/C 24/7, particularly while I'm out of country but there's no issue with mold/stale air as there are circulation vents with the outside. I keep a Les Paul and an ES-335 in their hard cases in the walk-in closet. Last week I came into the apartment and it was about 90F and 67% humidity. Will this harm my guitars? When I'm there I kick in the AC and bring it down to about 78F and the humidity comes down around 50%. I'm thinking of evacuating them back to Guam where my Condo environment is consistently cool with humidity below 50%. Any and all advice would be deeply appreciated. Thanks. Link to comment Share on other sites More sharing options...
sg50 Posted July 31, 2015 Share Posted July 31, 2015 I've found plenty of info on this website regarding humidity issues but not much about high temps so I'm throwing this out to you guys/gals for your opinions. This time of year in Japan is broiling with temps in the low to mid 90s and medium to high humidity. Things will start to cool down early/mid Sep. Electric rates prohibit running A/C 24/7, particularly while I'm out of country but there's no issue with mold/stale air as there are circulation vents with the outside. I keep a Les Paul and an ES-335 in their hard cases in the walk-in closet. Last week I came into the apartment and it was about 90F and 67% humidity. Will this harm my guitars? When I'm there I kick in the AC and bring it down to about 78F and the humidity comes down around 50%. I'm thinking of evacuating them back to Guam where my Condo environment is consistently cool with humidity below 50%. Any and all advice would be deeply appreciated. Thanks. The glue in your guitar may liquify at 140°F, you're good there. I'm not sure about at what temperature the finish is prone to checking... with nitro, probably all temperatures. I'd be more concerned about thermal shock than sitting in constant 90° heat, so I wouldn't put the guitar in front of the A/C vent. But that could be more paranoia than science. If you're concerned about 67% humidity, drop a few desiccant packets in your cases. I only humidify my acoustic and only when the humidity drops below 50% in the winter, I don't do anything in the summer, and here on the east coast, it gets very humid. (currently 69°F and 88% humidity in this room) No problems there yet. I should disclose that my kit-built mando hangs on the wall, and last winter, the back cracked because it was too dry. I knew the risk of displaying it, and I attribute the fragility to my novice luthier skills. However, my Epi Casino hangs next to it, and while I can perceive the effects of humidity on it, the poly finish is fine and there are no cracks to be found on it. I keep my nitro-finished SG in its case, and this room hits 90 often in the summer, and it's been fine for the 4 years I've had it here. Link to comment Share on other sites More sharing options...
surfpup Posted July 31, 2015 Share Posted July 31, 2015 I live in Florida and leave a couple of my guitars in the car all the time when loaded for gigs. Don't have a choice - never had a problem. The Fenders even stay in tune. Link to comment Share on other sites More sharing options...
Murph Posted July 31, 2015 Share Posted July 31, 2015 I live in Florida and leave a couple of my guitars in the car all the time when loaded for gigs. Don't have a choice - never had a problem. The Fenders even stay in tune. Yep. I lived in Apache Jct. Arizona when I started gigging bars serious, and temps would reach 110F all the time. Imagine how hot it would get in a locked car. Like Surfpup, we didn't have any options but to lock stuff in cars/vans often. Just try to limit the exposure and make temp changes as gradual as possible. Link to comment Share on other sites More sharing options...
brundaddy Posted July 31, 2015 Share Posted July 31, 2015 Keep em in the cases indoors away from AC vents and you shouldn't have any worries. Humidity is desirable as long as water doesn't condense (that's when you get mold and mildew, which mainly affects the cases). Banzai, etc. Link to comment Share on other sites More sharing options...
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