JBM Posted February 7, 2018 Share Posted February 7, 2018 So, im smack dab in the middle of a reefpi build. I have a "waterproof" DS18B20.... reports and forums say that it isnt "rust proof". id much rather not have to replace it every few months. krylon paint? Bueller? Bueller? Bueller? Quote Link to comment
ajmckay Posted February 7, 2018 Share Posted February 7, 2018 Meh saltwater takes its toll on anything. I have an inkbird temp probe that's been great. They're typically plastic or stainless - are people reporting rust issues with these? Paint will likely peel off at some point - I would use silicone or hot melt glue. I've used small amounts of hot melt glue just fine in my tanks (3g & up). Quote Link to comment
HarryPotter Posted February 7, 2018 Share Posted February 7, 2018 Dip it in some epoxy... No water will get in there! Quote Link to comment
ajmckay Posted February 7, 2018 Share Posted February 7, 2018 48 minutes ago, HarryPotter said: Dip it in some epoxy... No water will get in there! You know... I'm still stuck on the rust thing - for some reason I can't see these things rusting in any substantial way... Inadvertently I steered my prior suggestions more toward the seams/connection points so yeah that probably isn't helpful. Silicone and hot glue would possibly insulate the probe. Epoxy could work I suppose if you can get a thin enough coating. If all you want to do is coat the metal part then I think a coat of spray paint would be easiest and it would be super easy to re-apply if needed. Also I think you could use nail polish maybe? Or just get a new probe every few years. Probably a good thing anyways. Good luck! Quote Link to comment
JBM Posted February 7, 2018 Author Share Posted February 7, 2018 11 hours ago, ajmckay said: Or just get a new probe every few years. Probably a good thing anyways. Good luck! not much on the subject out in the forums. But the stainless steel waterproof versions are rusting through in a couple of months. apparently it's cheap stainless Quote Link to comment
HarryPotter Posted February 7, 2018 Share Posted February 7, 2018 7 minutes ago, JBM said: not much on the subject out in the forums. But the stainless steel waterproof versions are rusting through in a couple of months. apparently it's cheap stainless I don’t see why epoxy wouldn’t work! You could also dip it in clear nail polish. 1 Quote Link to comment
JBM Posted February 7, 2018 Author Share Posted February 7, 2018 with 3 little girls. clear nail polish i have an abundance of Quote Link to comment
Lingwendil Posted February 8, 2018 Share Posted February 8, 2018 Slather it in aquarium silicone. Quote Link to comment
JBM Posted February 8, 2018 Author Share Posted February 8, 2018 48 minutes ago, Lingwendil said: Slather it in aquarium silicone. I went with clear nail polish. Silicone would have have been to thick and skewed the readings. Here is a snap of my readings Quote Link to comment
HarryPotter Posted February 8, 2018 Share Posted February 8, 2018 23 minutes ago, JBM said: I went with clear nail polish. Silicone would have have been to thick and skewed the readings. Here is a snap of my readings Unless it is the best insulator in the world, I don't see how silicon would effect a submerged probe. At the very most it might delay the reading a few minutes, but nothing significant for our reef tanks? A small metal probe even in silicon will match external temperature pretty quickly. Try putting it in ice water, and then in the tank. Within a minute or two it'll read correctly; thermodynamics. Quote Link to comment
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