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RTV Gasket Maker vs. RTV Adhesive Sealant ??? #1245032 06/03/12 09:31 PM 06/03/12 09:31 PM
Joined: Mar 2007 Posts: 76 Pennsylvania M moparsenior OP member
moparsenior OP member M Joined: Mar 2007 Posts: 76 Pennsylvania	I'm confused by the many different Permatex RTV sealants and gasket makers. I want to put something around the water passages on an intake that doesn't fit as well as I would like; I'm using a gasket, but want some added assurance that the gasket will seal. Q) Do I want to use RTV GASKET MAKER or.. RTV SILICONE ADHESIVE? Too many Permatex choices.

Re: RTV Gasket Maker vs. RTV Adhesive Sealant ??? [Re: moparsenior] #1245033 06/03/12 09:43 PM 06/03/12 09:43 PM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	RTV is RTV. Yes it comes in various formulas for different apps Use the version that suits your needs.. I am truckless..

Re: RTV Gasket Maker vs. RTV Adhesive Sealant ??? [Re: moparsenior] #1245034 06/03/12 09:51 PM 06/03/12 09:51 PM
Joined: Aug 2003 Posts: 43,176 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,176 Bend,OR USA	I try to buy and use the silicone adhesive, not the standard gasket maker silicone Especially on intake gaskets Last edited by Cab_Burge; 06/03/12 09:52 PM. Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: RTV Gasket Maker vs. RTV Adhesive Sealant ??? [Re: Cab_Burge] #1245035 06/03/12 11:12 PM 06/03/12 11:12 PM
Joined: Aug 2003 Posts: 1,062 Amherst,NY challengermike super stock
challengermike super stock Joined: Aug 2003 Posts: 1,062 Amherst,NY	I like Permatex Ultra Grey.

Re: RTV Gasket Maker vs. RTV Adhesive Sealant ??? [Re: moparsenior] #1245036 06/04/12 12:18 AM 06/04/12 12:18 AM
Joined: Jul 2003 Posts: 3,377 Rancho Cordova, CA Exit1965 master
Exit1965 master Joined: Jul 2003 Posts: 3,377 Rancho Cordova, CA	I like blue RTV for water.. just the standard stuff, don't even know if it's called maker or sealant, just good old blue RTV.

Re: RTV Gasket Maker vs. RTV Adhesive Sealant ??? [Re: Exit1965] #1245037 06/04/12 02:00 PM 06/04/12 02:00 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	And I bought a tube of clear GE silicone to do the gaskets on my ford 400 at Home Depot. Amazing how fast you can run a bead with a caulking gun! R.

Re: RTV Gasket Maker vs. RTV Adhesive Sealant ??? [Re: dogdays] #1245038 06/04/12 05:05 PM 06/04/12 05:05 PM
Joined: Apr 2012 Posts: 27 CA J Joe Dokes member
Joe Dokes member J Joined: Apr 2012 Posts: 27 CA	Quote: And I bought a tube of clear GE silicone to do the gaskets on my ford 400 at Home Depot. Amazing how fast you can run a bead with a caulking gun! R. Don't know if I'd use GE silicone, not sure it is formulated for engine heat, it could harden and crack, thus causing leaks. I've had really good luck with Permatex Ultra Blue. Be sure to follow the directions EXACTLY. I find that allowing the product to "skin" before assembly really helps. Also allow the sealant to cure for a FULL 24 Hrs. before starting the motor. I've found that failing to allow the permatex to cure led to oil and water leaks. Also in the case of solving oil or water leaks, cleanliness is absolutely critical. Wipe down any sealing surface with brake cleaner or acetone prior to using Permatex. Good sealing REQUIRES a surface that is COMPLETELY free of oil, grease, or water. This is particularly true of anti-freeze. Anti-freeze have corrosion inhibitors that act like an oil, if the parts being joined aren't completely free of anti-freeze the part will leak. Finally DON'T over-torque your fasteners. Common leaks at the thermostat housing are almost always caused by over tightening. Hope this helps. Regards, Joe Dokes

Re: RTV Gasket Maker vs. RTV Adhesive Sealant ??? [Re: challengermike] #1245039 06/04/12 08:46 PM 06/04/12 08:46 PM
Joined: Aug 2005 Posts: 4,799 ILL M MLR426 master
MLR426 master M Joined: Aug 2005 Posts: 4,799 ILL	Quote: I like Permatex Ultra Grey. Any Ultra Perematex is good and tough. MLR426

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