Replies

1. 
   bowquack | Mar 16, 2008 04:46am | #1

   Not wet/dry roof cement?  from the description that sounds right.  Is it a tar like product?

1. 
   woodway | Mar 16, 2008 07:42am | #5

   You know, that might have been it. I used it about two years ago and as I remember from the label, I believe it said it could be used in wet conditions. It was black and very thick in consistency, roof patch sort of thing.. Now you've done it, I'm back thinking about it and looking for this on on the net again. It's getting late and I'm looking up black stuff on the net. I could be in be bed now, damn.

1. 
   woodway | Mar 16, 2008 08:17am | #6

   Got it!!!!!Henry's 208 wet patch roof cement! Good for metal roofs and as I found out, it works like a charm in metal gutters too. Surface needs to be clear of dirt etc. but once it's clean the stuff sets up nicely on a warm day. After about a week, it becomes almost hard yet still pliableThanks, now I'm going to get some sleep.

1. 
   Sphere | Mar 16, 2008 03:21pm | #7

   Geocel Fibered Brushable 2315 I think is the good stuff.Spheramid Enterprises Architectural Woodworks

   "Success is not spontaneous combustion, you have to set yourself on Fire"

1. 
   woodway | Mar 16, 2008 08:05pm | #12

   Thanks Sphere!

2. 
   Riversong | Mar 16, 2008 04:49am | #2

   Are these aluminum gutters?

   I would use a high-quality silicone caulk.  Thats what gutter installers use.

    

   Riversong HouseWright

   Design *  * Build *  * Renovate *  * Consult
   Solar & Super-Insulated Healthy Homes
1. 
   Sphere | Mar 16, 2008 03:25pm | #8

   Tri-polymer Geocel is much better IMO. And lacking that , I like Lexel.  Silicone has slowly been leaving my arsenal of caulks and sealants for exterior work.  I've fallen out of love with it.

   YMMVSpheramid Enterprises Architectural Woodworks

   "Success is not spontaneous combustion, you have to set yourself on Fire"

1. 
   gotcha | Mar 16, 2008 05:24pm | #9

   I used Lexel on a leaking skylight while it was raining. No problems for 3 or 4 yrs now. No way silicone would have worked.Pete

1. 
   Sphere | Mar 16, 2008 05:54pm | #10

   I had used it exclusivly when I was in NC, moved to KY 4 yrs ago, and couldn't get it locally..I had it sent up.

   Then I hooked up with Seeyou as one of his gutter installers/roofers and the Geocel is what he supplied, ABC has it in stock..and that stuff is right up there too in performance, if not better in many uses. The Brushable formula, is all I'd consider for many jobs.

   Both are paintable, and one of the benefits of that is , one could smear lex or geo OVER old sillycone , to make it accept paint..and Lex is also an excellent adhesive for different materials..sillycone is not.

   For OLD copper gutters that may have failed solder joints, and re-soldering is out, a very good repair can be had by the use of geocel or lexel, I'd not trust much else for the long haul.Spheramid Enterprises Architectural Woodworks

   "Success is not spontaneous combustion, you have to set yourself on Fire"

2. 
   Jim_Allen | Mar 16, 2008 06:20pm | #11

   I agree. Silicone seems like the miracle caulk but it has significant limitations and numerous conditions will cause it to fail. For gutters, there isn't anything better than the gutter sealant that the local gutter suppliers sell. Bob's next test date: 12/10/07

3. 
   Riversong | Mar 16, 2008 08:18pm | #13

   Tri-polymer Geocel is much better IMO. And lacking that , I like Lexel.

   I agree.  I mentioned silicone only because that's what my last seamless gutter intaller used, specifically made for aluminum gutters.

   But I don't use silicone for anything either.  Lexel is the only caulk AFAIK that adheres to rotomolded polyethylene - and I repaired a plastic kayak with it.

   I've used Geocel ProFlex and been happy with it.  I also use urethane caulks for exterior work.  Phenoseal for kitchens and baths. 

   Riversong HouseWright

   Design *  * Build *  * Renovate *  * ConsultSolar & Super-Insulated Healthy Homes

1. 
   Sphere | Mar 16, 2008 08:25pm | #14

   Yeah, Phenoseal here too for K&B.

   My latest binge has been Big Stretch for Hardie type ext. and Azek trim, cheap and really easy to tool..I hate Poly Urethane caulks unless it's a big void and I don't have to dink with it..nasty to tool.  Current HO supplied SW SP-1 (?) urethane for hardie siding and I told him to return it after the first tube..horrid to work with.Spheramid Enterprises Architectural Woodworks

   "Success is not spontaneous combustion, you have to set yourself on Fire"

3. 
   theslateman | Mar 16, 2008 04:49am | #3

   Are you thinking of a Geocel product?

4. 
   DavidxDoud | Mar 16, 2008 06:05am | #4

   butyl caulk? otherwise known as 'lap and gutter seal'?

   "there's enough for everyone"