RTV Silicone?

Nanidin · 09-24-2003, 09:42 PM

Hey, I'm about halfway done making a #rotor, all I need to do is barb it and seal it. I've read that RTV silicone is a good sealant to use. I went to home depot and they didn't have it, so I was wondering if RTV silicone is a certain brand... If you guys could help me out that would be wonderful!

JFettig · 09-24-2003, 10:19 PM

RTV silicone is made by some brands, I guess its a type of silicone. You will be able to find it at probably any auto store. (IE autozone, checker, pep boys etc.)

If you can find 'neutral cure' RTV silicone, that woudl be the best, It lacks the acids and whatnots. Sometimes the acids will discolor your channels and stuff. I have found it only does that when you blow through it before its dry. It spreads the vapors or something.

Do not use silicone on hosebarbs unless you screw them in really tight(like in metal) but still, go with teflon tape(PTFE thread seal tape)

Jon

Nanidin · 09-24-2003, 10:24 PM

Yes, I was planning on using the silicone to seal the actual block itself. I'm still trying to figure out how to barb it... I have 1/2" ID tubing so I'm assuming I need some kind of 1/2" barb and a tap/drill bit to thread it. If you can provide any information more specific than this, thanks a million.
Ben

Since87 · 09-24-2003, 11:38 PM

The "RTV" stands for "room temperature vulcanizing". In other words it cures at room temperature. As far as I know anything sold in a hardware store as silicone sealant is going to be "RTV".

I'd be inclined to go with the "neutral cure" (electronics grade) silicone as well. I don't remember why, but the standard off the shelf stuff contains more acetic acid than necessary. You might be able to call around to electronics stores, and find someplace that has the neutral cure stuff.

09-24-2003, 09:42 PM	#1
Nanidin Cooling Neophyte Join Date: Aug 2003 Location: Missouri Posts: 9	RTV Silicone? Hey, I'm about halfway done making a #rotor, all I need to do is barb it and seal it. I've read that RTV silicone is a good sealant to use. I went to home depot and they didn't have it, so I was wondering if RTV silicone is a certain brand... If you guys could help me out that would be wonderful!

09-24-2003, 10:19 PM	#2
JFettig Cooling Savant Join Date: Feb 2003 Location: Willmar MN/Fargo ND Posts: 504	RTV silicone is made by some brands, I guess its a type of silicone. You will be able to find it at probably any auto store. (IE autozone, checker, pep boys etc.) If you can find 'neutral cure' RTV silicone, that woudl be the best, It lacks the acids and whatnots. Sometimes the acids will discolor your channels and stuff. I have found it only does that when you blow through it before its dry. It spreads the vapors or something. Do not use silicone on hosebarbs unless you screw them in really tight(like in metal) but still, go with teflon tape(PTFE thread seal tape) Jon

09-24-2003, 10:24 PM	#3
Nanidin Cooling Neophyte Join Date: Aug 2003 Location: Missouri Posts: 9	Yes, I was planning on using the silicone to seal the actual block itself. I'm still trying to figure out how to barb it... I have 1/2" ID tubing so I'm assuming I need some kind of 1/2" barb and a tap/drill bit to thread it. If you can provide any information more specific than this, thanks a million. Ben

09-24-2003, 11:38 PM	#4
Since87 Pro/Guru - Uber Mod Join Date: Sep 2002 Location: Indiana Posts: 834	The "RTV" stands for "room temperature vulcanizing". In other words it cures at room temperature. As far as I know anything sold in a hardware store as silicone sealant is going to be "RTV". I'd be inclined to go with the "neutral cure" (electronics grade) silicone as well. I don't remember why, but the standard off the shelf stuff contains more acetic acid than necessary. You might be able to call around to electronics stores, and find someplace that has the neutral cure stuff.

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