Where can I get this or something similar?
http://www.bond-it.co.uk/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=234&category_id=88&option=com_virtuemart&Itemid=3&vmcchk=1&Itemid=3
Looking for some of this myself. The B&Q's don't have it.
http://www.fernox.com/files/Fernox/Content/PDF/English/LS-X.pdf (http://www.fernox.com/files/Fernox/Content/PDF/English/LS-X.pdf)
You can pick this up in a good plumbers merchant.
Dunno if its what ya need.
I doubt that'll do the job. The line that reads avoid contact with skin doesn't inspire much confidence. It has to be food grade as it'll be in direct contact with sweet wort in the mash tun. I'm planning on incorperating a few temperature sensors into my tun and I'll need to seal the holes I make.
Thats no different from regular Silicone.
Once its cured, its fine...
"may be used as a jointing compound on hot and cold water services, including potable water"
Contact the manufacturer if in doubt.
As john said, it says good for potable water connections hot and cold up to boiling.
I bought a tube to use on the threads of my thermometer in my mash tun but didnt
use it in the end as the silicone o ring did the job along with some ptfe tape.
Worked with silicone for years and never considered it as food grade. I want to fit a stc 1000 probe into a brass T piece to measure the temp of wort passing through. Do you reckon bog standard clear silicone will do this. :)
Would aquarium silicone do the job, has to be non toxic anyway so as not to kill the fish?
Something like this:
http://www.ebay.ie/itm/HA6-SILICONE-SEALANT-RTV-MARINE-AQUARIUM-FISH-TANK-SAFE-HIGH-MODULUS-SALT-WATER-/230829590641?pt=UK_Crafts_Cardmaking_Scrapbooking_Glue_Tape_EH&var=&hash=item35be840871#ht_5243wt_977
Three options for food grade high temperature food grade silicone. See links below
http://www.mcmaster.com/#7545a471/
http://www.amazon.com/s/?_encoding=UTF8&camp=1789&creative=390957&field-keywords=Food%20grade%20silicone%20sealant&linkCode=ur2&rh=i%3Aaps%2Ck%3AFood%20grade%20silicone%20sealant&tag=theelectricbrewery-20&url=search-alias%3Daps
http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5574906687&toolid=10001&campid=5336652980&customid=&icep_uq=Food+grade+silicone+sealant&icep_sellerId=&icep_ex_kw=&icep_sortBy=12&icep_catId=&icep_minPrice=&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg
Mcmaster.com and Amazon won't deliver outside us but if you have friends family living there or travelling you can order from them. I got stuff from Mcmaster (huge selection of stuff).
Shanna
The Amazon site led me to RS Radionic's. Went to their site and using online chat was able to confirm that food grade is available.
http://radionics.rs-online.com/web/p/silicone-sealants/4590226/?searchTerm=459-0226&relevancy-data=636F3D3126696E3D4931384E525353746F636B4E756D6265724D504E266C753D656E266D6D3D6D61746368616C6C26706D3D5E5C647B337D5B5C732D2F255C2E2C5D5C647B332C347D2426706F3D313426736E3D592673743D52535F53544F434B5F4E554D424552267573743D3435392D303232362677633D4E4F4E4526
The key word to look for in the silicones for sale is acetoxy silicone.
Dammit. I just ordered some stuff off of radionics. No big deal, haven't made the circuit yet or found a second cooler box. Anyone have a good method of putting temp sensors into a cooler box? I got this: http://radionics.rs-online.com/web/p/temperature-humidity-sensors/5402805/
The quick and messy solution would be to drill a hole and insert the head of the sensor in with the mash and seal it. Not much good for replacing dodgy sensors though. And I don't know how the packaging would react to being directly submerged in a hot liquid.
Suggestions appreciated!
Not to sure about this,is the 3 prong image the sensor and if so are these 3 prongs wire connections. If so then you need to install it in a steel probe.
What about a thermistor?
Resistance changes with temp.
Pop one of these in a S/Sthermowell with non-electrically conductive heat sink paste.
I'm liking the steel probe idea. I suppose I'd have to make the probes. Surely copper would be just as good? (I have a little excess copper) Anyone done something similar? I'm using this sensor as it operates well with the arduino uno I recently bought. Hoping to insert 4 sensors into the mash tun. 3 LED's per sensor, above temp, below temp and at temp indicators. I'm tricking myself into educating myself about electronics via my love of brewing.
I use these in plastic and Keg Hlt's
http://www.ebay.co.uk/itm/probe-of-temperature-sensor-for-water-tank-sensor-tube-for-solar-water-heater-/271187178709?ssPageName=ADME:X:AAQ:GB:1123
and pop my stc-sensor down it
Quote from: Ciderhead on May 15, 2013, 05:46:03 PM
I use these in plastic and Keg Hlt's
http://www.ebay.co.uk/itm/probe-of-temperature-sensor-for-water-tank-sensor-tube-for-solar-water-heater-/271187178709?ssPageName=ADME:X:AAQ:GB:1123
and pop my stc-sensor down it
Is there any extra wiring involved in fitting these or does the probe just sit into it?
I agree with above post, loads of these probes ( usually K type) with various types of fitting, I bought a few today on ebay from china today the SS threaded type and a smal rubber O ring same as ones in the corny keg taps and connectors this would do the job.
other idea is to use one of the probes via a small rubber grommett.
I think there is far more pollution in the common foods we consume and the toxic air we breath than in a little bit of something that may leak from a small strip of rubber or silicone in a homebrew vessel...so are we a little overbaord sometimes on food grade this and food grade that? Plastic Ballygowen water botles are made with " one trip" plastic that is toxic when left in the sun. Everything we buy is wrapped in plastic. As far as I understand it silicone is extremely durable and does not break down easily as plastics do, so im not sure if there should be a worry about microscopic traces of silicone sealer to be honest that may leach into our beer, I would be more concerned about the plastic fermenters from homebrew shops which are not stamped as food safe like the mayonaise tubs from the chippy actually are. So maybe the plastic fermenter or mash tun is way more dangerous for our health and more likely to add undesireable flavouurs than a bit of silicone..............comments and criticism welcome!
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=271172028185
hav yis seen these? http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=271140018343&ssPageName=ADME:L:OC:IE:3160 extra probes 1.50euros?
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=151037429120&ssPageName=ADME:L:OC:IE:3160 from uk
and these pumps http://www.ebay.ca/itm/6V-12V-DC-Micro-pump-Circulation-system-pump-hot-water-pump-Brushless-Pump-/121100730383?ssPageName=ADME:L:OC:IE:3160
Quote from: Kevco5 on May 15, 2013, 09:32:51 PM
Quote from: Ciderhead on May 15, 2013, 05:46:03 PM
I use these in plastic and Keg Hlt's
http://www.ebay.co.uk/itm/probe-of-temperature-sensor-for-water-tank-sensor-tube-for-solar-water-heater-/271187178709?ssPageName=ADME:X:AAQ:GB:1123
and pop my stc-sensor down it
Is there any extra wiring involved in fitting these or does the probe just sit into it?
Drill a hole in plastic bucket or keg hlt and a washer a nut screwed tight. The stc probe travels nicely down the pipe into the middle of what you are trying to measure.
I have heat transfer compound but its really not necessary and makes a hell of a mess of the probe tip
Quote from: brenmurph on May 15, 2013, 09:45:23 PM
. As far as I understand it silicone is extremely durable and does not break down easily as plastics do, so im not sure if there should be a worry about microscopic traces of silicone sealer to be honest that may leach into our beer
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=271172028185
Problem with many sealants is that it's not the sealant but the pigments and critically the fungicide in them that will kill you :(
Also just found this which should give you some ideas, Dempsey hope you see this!
http://youtu.be/TNdYrn3PrgM
Quote from: Ciderhead on May 15, 2013, 11:17:28 PM
Also just found this which should give you some ideas, Dempsey hope you see this!
http://youtu.be/TNdYrn3PrgM
thats a good way to use the probe
Never thought of that. That's brilliant. I'm hoping to have multiple read points though. I find that the temperature from one point to another in my tun can vary about 4 deg at times. Maybe I'm just hasty taking the reading with the thermometer though. I was thinking of getting some threaded bar and drilling out the center and inserting the temp sensor. Then inserting the bar into the wall of the mash tun, same method as for attaching the tap. In saying that though, the bar would act as a cold bridge so I could end up monitering the temp very well while ruining the insulation qualities of the cooler box. Or maybe I'm just over thinking this...... ::)