4specs.com    4specs.com Home Page

Heat-Resistant Joint Sealant? Log Out | Topics | Search
Moderators | Register | Edit Profile

4specs Discussion Forum » Archive - Product Discussions #3 » Heat-Resistant Joint Sealant? « Previous Next »

Author Message
David R. Combs, CSI, CCS, CCCA
Senior Member
Username: davidcombs

Post Number: 254
Registered: 08-2004
Posted on Wednesday, November 07, 2007 - 11:37 am:   Edit PostDelete PostPrint Post

Condition: A pair of diesel generator exhaust pipes penetrating the exterior wall of a building.

Anyone know of a heat-resistant (and weather-resistant) joint sealant product that would be suitable to seal the annular space?

Thanks in advance.
Nathan Woods, CCCA, LEED AP
Senior Member
Username: nwoods

Post Number: 222
Registered: 08-2005
Posted on Wednesday, November 07, 2007 - 11:55 am:   Edit PostDelete PostPrint Post

I'm not sure what the actual temp that you need to resist is, but Link-Seal is available in special compounds that resist temperatures from as low as -60-degrees F.(-51 C) to as high as 400-degrees F. (204 C)

http://www.linkseal.com/features.htm
J. Peter Jordan
Senior Member
Username: jpjordan

Post Number: 256
Registered: 05-2004
Posted on Wednesday, November 07, 2007 - 03:02 pm:   Edit PostDelete PostPrint Post

You might try looking at products used for through penetration firestop systems; may not be exactly what you are looking for, but I would be willing to bet that these guys would be making products that would be what you are looking for if you knew what you were looking for what ....
David R. Combs, CSI, CCS, CCCA
Senior Member
Username: davidcombs

Post Number: 255
Registered: 08-2004
Posted on Thursday, November 08, 2007 - 01:52 pm:   Edit PostDelete PostPrint Post

Did not receive anticipated service temperatures for the surfaces to which the sealant was expected to bond, but here's a list of the products that were suggested (just for future reference for anyone else seeking the same info):

The first four are silicones.

1. TremPro 644 high temperature silicone sealant by Tremco.

2. DOW CORNING® 736 HEAT RESISTANT/SEALANT -- Red RTV adhesive/sealant for temperatures up to 600F/315C.

3. White Lightning® High Heat Silicone Sealant by KPG Industrial.

4. MasterSil #410, one component, silicone sealant by Masterbond (but good for only up to 400 F).

5. Pyrosealant™ by ADL Insulflex, Inc. (per manufacturer: composed of amorphous silica, polydemthyl-siloxane, iron oxide, and a specially developed curing catalyst).

Topics | Last Day | Last Week | Tree View | Search | Help/Instructions | Program Credits Administration