Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-22-2003, 09:49 AM   #1
nds
3 Rivet Member
 
Join Date: Jun 2003
Posts: 240
Installing roof AC. Need a sealant

A friend is getting ready to install a new 13,500 BTU Penguin in his 23' Safari this week.

I know that Vulkem is the recommended sealant to use, but we can't locate any in Central Kentucky and he hasn't the time to order it. Is there another brand, easily obtainable, that is recommended?

I've seen people post that silicone sealant shouldn't be used on an Airstream. Does this go for any silicone based product?

I've tried searching for Alcoa Gutter Seal and Parbond and can't locate that locally either. They sure don't want to make this easy on you, do they?

Any help would be greatly appreciated.
__________________

__________________
nds is offline   Reply With Quote
Old 07-22-2003, 09:58 AM   #2
Just a member
 
thenewkid64's Avatar
 
1978 28' Argosy 28
Tampa Bay , Florida
Join Date: Mar 2002
Posts: 4,539
Images: 21
Send a message via AIM to thenewkid64 Send a message via Yahoo to thenewkid64 Send a message via Skype™ to thenewkid64
If it is the new penguin model there is no vulcem or silicone necessary. The AC unit comes with a compressable closed cell foam gasket attached to the bottom of the AC unit. This foam gasket is all that is needed to seal it to the roof.
The compression of the 3 bolts thru to the interior not only hold it on, but create the seal. If there was a prior unit there I would try to get the skin as free of old sealant or debris as possible and go from there. No if you are using an Airstream drain pan and then placing the AC in it I can't help. I do not know what is there on the pan, or if you need a sealant at all.
__________________

__________________
Brett G
WBCCI #5501 AIR # 49
-------------------------
1978 Argosy 28 foot Motorhome

Wise men talk because they have something to say; fools, because they have to say something. -- Plato


thenewkid64 is offline   Reply With Quote
Old 07-22-2003, 10:21 AM   #3
nds
3 Rivet Member
 
Join Date: Jun 2003
Posts: 240
Yes, this is a new Penguin AC unit and he has the Airstream drain pan to go with it.

This is a first time AC installation (he will be cutting the hole in the ceiling for it) and not a replacement.

He does have Sonneborn NP-1, a one part urethane sealant, same as Vulkem. Has anyone ever heard of this product and will it do the job?
__________________
nds is offline   Reply With Quote
Old 07-22-2003, 10:27 AM   #4
2 Rivet Member
 
boltos's Avatar
 
Join Date: Jun 2003
Posts: 41
Installing roof AC. Need a sealant

The installation here is with the Airstream drain pan, and so the sealant application is between the drain pan and the roof skin. I agree the compressable foam on the unit itself (Penguin 13,500 BTU) does not need a sealant application. The product I am looking to use, since I can not find Vulkem anywhere in central Kentucky, is Sonneborn NP-1, also a one part urethane sealant. If anyone has a reason this would be inadvisable, please let me know, Thanks.

Brian Sawyer
Lexington, KY
'70 Safari
__________________
Brian Sawyer,
Lexington, KY
boltos is offline   Reply With Quote
Old 07-22-2003, 10:57 AM   #5
Rivet Master
 
Chas's Avatar
 
Austin , Texas
Join Date: Oct 2002
Posts: 949
Images: 22
NP1 is different than Vulkem. Not exactly sure how but there is a difference. Vulkem has a texture to it and seems to behave differently than Vulkem. It is made by Tremco and am surprised that you can't find it locally. Go Google and get Tremco's website, it will have the dealers in your area.

Chas
__________________
Chas is offline   Reply With Quote
Old 07-22-2003, 12:14 PM   #6
nds
3 Rivet Member
 
Join Date: Jun 2003
Posts: 240
Quote:
Originally posted by Chas
Vulkem has a texture to it and seems to behave differently than Vulkem.
You mean the NP1 has a different texture to it? You don't think NP1 would be good for this application?

I did see there were 2 places in Louisville that are suppose to carry Vulkem. We'll see what they say. Thanks

If anyone else has any thoughts on this, we would like to hear. Thanks.
__________________
nds is offline   Reply With Quote
Old 07-22-2003, 04:47 PM   #7
3 Rivet Member
 
71tradewind's Avatar
 
Join Date: Mar 2002
Posts: 172
Images: 4
NDS i did a first time A/C installation on my 71 Tradewind and did not need to use any sealant other than the seal that comes with the A/C unit itself. 4 years and no leaks !
__________________
71tradewind is offline   Reply With Quote
Old 07-22-2003, 07:30 PM   #8
2 Rivet Member
 
boltos's Avatar
 
Join Date: Jun 2003
Posts: 41
Hello Tradewind,
The sealant is for the drain pan installation. The AC unit itself does have the foam gasket and does not sealant.

bds
__________________
Brian Sawyer,
Lexington, KY
boltos is offline   Reply With Quote
Old 07-22-2003, 07:33 PM   #9
3 Rivet Member
 
71tradewind's Avatar
 
Join Date: Mar 2002
Posts: 172
Images: 4
Wink

Ahhhhh Ok now i understand !
__________________

__________________
71tradewind is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Non Traditional AC - Not on the roof Bryanhu Furnaces, Heaters, Fireplaces & Air Conditioning 63 03-12-2006 03:38 PM
2004 30' Classic roof rack gklott Our Community 0 07-15-2003 04:00 PM
Roof question Don in E Texas Roof 2 02-21-2003 07:11 PM
Yukon AC cuts out towing.... dscluchfc On The Road... 10 07-27-2002 12:01 PM
Roof AC units Questions FrankR Furnaces, Heaters, Fireplaces & Air Conditioning 15 07-22-2002 02:35 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:20 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.