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-   -   Sealant question (http://www.airforums.com/forums/f164/sealant-question-95534.html)

steve powers 08-22-2012 04:03 PM

Sealant question
 
can anyone tell me what type of grey sealant is used around the doors and windows and where i can get it. thanks

eubank 08-22-2012 04:23 PM

That's Vulkem, available as the standard stuff and the slow-dry stuff. Available at Vintage Trailer Supply, Inland RV, and other places, I'm sure.

TremPro 635
Inland RV Center Inc.

:)
Lynn

lewster 08-22-2012 04:26 PM

Quote:

Originally Posted by steve powers (Post 1192438)
can anyone tell me what type of grey sealant is used around the doors and windows and where i can get it. thanks

Actually, newer Airstreams use SikaFlex 221 grey. Many well stocked RV shops use it, or Fastenall, or of course, on-line. I use it by the case.....it's great stuff!
Moisture cure single stage polyurethane......:brows:

Aage 08-22-2012 04:31 PM

Can't remember for sure, but I think that it's not recommended to mix them. In other words, if you have Vulkem on there, stick to Vulkem.

It has a new name tho, "something" 635. Anybody have a better memory than me?

CaddyGrn 08-22-2012 05:06 PM

Just a warning here.... never, never, ever use a gray silicone seal.... it is murder to clean off when you need to reapply.... lots of threads here on the "s" word stuff! ;P

Gary H 08-22-2012 05:11 PM

I just ordered 5 tubes of Vulkem 116 on Ebay for $29.95 with free shipping. I just got them. Search and you shall find.

Gary.

Aage 08-23-2012 06:14 PM

TremPro 635 was what I was told was the replacement for the old Vulkem, and that's what I use. It's great! Lke all that type pf sealant, it is super messy to apply.

And I have no idea of what the differences are between 116 and 635. 635 also carries the colour designator for grey, by the way. What colour is 116?

eubank 08-23-2012 08:38 PM

#116 is a slow-cure formulation that you'd use when, for example, needing to put parts together and potentially realign them as you go.
:)
Lynn

Quote:

Originally Posted by Aage (Post 1193079)
TremPro 635 was what I was told was the replacement for the old Vulkem, and that's what I use. It's great! Lke all that type pf sealant, it is super messy to apply.

And I have no idea of what the differences are between 116 and 635. 635 also carries the colour designator for grey, by the way. What colour is 116?


Ganglin 08-23-2012 10:18 PM

We used 635 on the tops and part way down the sides of the windows (same pattern as it had on it) and I'll never use the stuff again. Four years and it's already cracking and crazing. The local dealer that supplies the construction industry here doesn't even carry the old Vulkem products that have now been relabeled. Vulkem, 116 etc. might be good good for lap seams due to the slow cure but their are better products - the relabeled 116, 635, etc. are retail grade product and you can expect retail grade results was his opinion.

He recommended Spectrem silicone sealant that would last upwards of 20 years. I couldn't bring myself to buy it (due to having that ingrained in me by the information here). We hate silicone because it's so hard to remove I said. He chuckled and said "well, isn't that the point". So he sold me the next best thing. Dymonic FC is a more rapid cure product with a longer life than 635, etc.. It doesn't react to UV and won't craze like 635 - according to him and to Tremco's site. It also has a great expansion capability in moving joints.

There was a recent thread here where an individual talked with the Tremco Factory Rep. and he was told almost exactly the same thing.

On the way out the door he said to me: "can I ask you something.... is your hobby camping or is it replacing sealant on a trailer every four of five years".
I've not used the Dymonic I purchased yet. Thinking about his comment has me seriously considering taking it back and getting the Spectrem.

Ganglin 08-24-2012 03:58 AM

Here's the thread that I referenced above:

http://www.airforums.com/forums/f456...m-83291-2.html

steve powers 08-25-2012 10:23 AM

I seem to have a leak somewhere up in the front of the camper but i cannot see where it is coming in from. what are the most common places for water to infiltrate? we flooded the outside with a hose yesterday but nothing was showing but i notice dampness on the subfloor today

dkottum 08-25-2012 10:37 AM

Steve, just to clarify, the subfloor is the plywood under the vinyl. How do you know there is dampness under there?

A very common source of leakage is the bottom sealant of the panoramic window. Look carefully at that thin bead of sealant, you may see that it is pulling away from the glass or frame. A magnifying glass may help, because it takes only a thin crack to allow large amounts of water to get through. A repair is to clean it good, tape both sides of the sealant joint, and apply a new bead. Can be messy so proceed carefully.

doug k

Panama Red 08-25-2012 08:32 PM

Gentlemen, and ladies, I am preparing, as we type, to settle the "Great Sealant Debate of 2012" once and for all. I have just ordered two tubes of Anodized Aluminum Gray Spectrem 2 Silicone caulk, and have on hand two tubes of Vulkem 116 (also gray). Next week I will be resealing all five of my Vista Views on my 1974 Sovereign, two with Vulkem, and the other three with Spectrem. First one to leak and need resealing loses. Expect my next post with results in 5 to 20 years... no need for thanks, just doing my part.
-Red

Ganglin 08-25-2012 08:44 PM

Quote:

Originally Posted by Panama Red (Post 1194100)
Gentlemen, and ladies, I am preparing, as we type, to settle the "Great Sealant Debate of 2012" once and for all. I have just ordered two tubes of Anodized Aluminum Gray Spectrem 2 Silicone caulk, and have on hand two tubes of Vulkem 116 (also gray). Next week I will be resealing all five of my Vista Views on my 1974 Sovereign, two with Vulkem, and the other three with Spectrem. First one to leak and need resealing loses. Expect my next post with results in 5 to 20 years... no need for thanks, just doing my part.
-Red

Excellent. Who starting the pool and holding the money....


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