Thick roof caulk

[tlc1976]

About 7 years ago I used this roof caulk that was unlike others I've used. It came out in a nice thick smooth solid bead and looked like butyl tape. Very nice. Only thing is it was something my mom brought over when she helped me with my roof, and we don't know what kind it was.

I've been to 2 stores and asked. Even one guy who was there for 16 years. Both were sure they knew what I was talking about, but upon opening the tube it was the same old runny gloppy tar that looks like diarrhea for lack of a better term. Not what I want. Even ones that said plastic or neoprene roof sealant were the gloppy stuff.

So does anyone know what the thick smooth roof caulk is that I'm describing, and can point me to a source?

Thanks.

 

[tthornto]

Could it have been the same stuff but you used it at a lower temp last time?

 

[Jeepermike]

This possibly.
http://www.eternabond.com/EternaCaulk-p/eternacaulk.htm

 

[sierradmax]

Chemlink Duralink

 

[flan]

Dicor is what they use on camper roofs it sounds like what you are describing.

 

[tlc1976]

Thanks, I'll have to check these out. She said she got it from Home Depot (that was where I asked the guy with 16 year tenure) but I hadn't thought of RV supplies. That sounds more common to its use anyway.

It wouldn't be a temperature issue. Completely different texture. And the thick stuff I used when it was 80F+ and the sun beating down on us. Much cooler than that any other time.

 

[Ole Slewfoot]

What are you trying to do with it? We mostly used Henrys wet patch in a caulk tube.

 

[T_R]

What are you trying to do with it? We mostly used Henrys wet patch in a caulk tube.

Is that good stuff? I bought a tube of it today but haven't tried it yet.

I need to seal up where an eye bolt for a guy wire penetrates the ridge cap shingles. It leaked a bit the first time we had a real heavy rain. Think the water is running down the wire. I was going to goober all around it put a flashing over it and goober it again on top.

 

[tlc1976]

Sealing patches of metal roofing, and some neoprene. It worked so nice on the other house, I had to go around a vent pipe. I cut a neoprene square with a hole a bit smaller than the pipe, slid it down, and caulked all the way around. And around the pipe. It was thick and smooth, and I could get a great seal without it all running down or squeezing out. I went up there 6 years later and it still looked great.

Henry's was the first one I tried to no avail. But they might make more than one.

 

[Ole Slewfoot]

Pretty good in that application, you are probably near the borderline of using it out of the bucket instead of the tube.
It is thick, black, nasty, and gets on everything. wear gloves and clean with gasoline.

You want to build a "pitch pocket" around the bolt, google image search will give you some ideas faster than i can type.

key points;
It'snot caulk, it's asphalt roof mastic. lol
mastic is not as UV stable as a 35 year shingle, withthe wet patch drying out a bit faster than the dry...so you want something (metal or a bit of cut shingle) over it.
Water travels downhill, so you want it to slope down away from the bolt.
Wind a good 3-4 layers of electrical tape down from the bolt onto the cover.
If you use shingle materiel, it is much more workable in the heat of the day.

If you can put something on the wire to eject most drips before they reach the roof penetration, that may help.
If you can wiggle the eye bolt, its too late and needs redone.

 

[wssix99]

About 7 years ago I used this roof caulk that was unlike others I've used. It came out in a nice thick smooth solid bead and looked like butyl tape.

You are after butyl caulk. Go get some of this and I think you'll have what you are after:
http://www.buildsite.com/pdf/ibroof/Solar-Seal-900-Product-Data-343613.pdf
http://pdbuilding.com/msds/Front_Line_Solar_Seal_-_All_colors.pdf

You'll have to go to a commercial building or roofing supply to get this stuff - they will also have every color under the sun. (I haven't see in it regular hardware stores.) It's not a do-it-yourself product and will probably make your testicles fall off if you eat it. (Hence, it's not in the big box stores.)

When we work with it, we make sure our hands/tools are wet and that keeps this stuff from sticking. Clean-up needs to happen right away with mineral spirits. (Xylene also works well, but that's probably using a "sledge hammer to drive a nail" in this application.)

 

[wssix99]

^ BTW - If you work with this stuff in the winter, you'll need to use a caulk warmer. In freezing weather, we had the stuff in a 5 gallon bucket with a 60w light bulb on and towel over the top. That kept it pliable.

 

[tlc1976]

^ BTW - If you work with this stuff in the winter, you'll need to use a caulk warmer. In freezing weather, we had the stuff in a 5 gallon bucket with a 60w light bulb on and towel over the top. That kept it pliable.

That sounds about right. Considering how thick it was at 80F, it'd probably be difficult to spread or even get out the tube in winter temps. And like you said it stuck to everything (which is what I wanted) and was tricky to spread when it started building up on tools. Hadn't thought of using water.

 

[T_R]

Pretty good in that application, you are probably near the borderline of using it out of the bucket instead of the tube.
It is thick, black, nasty, and gets on everything. wear gloves and clean with gasoline.

You want to build a "pitch pocket" around the bolt, google image search will give you some ideas faster than i can type.

key points;
It'snot caulk, it's asphalt roof mastic. lol
mastic is not as UV stable as a 35 year shingle, withthe wet patch drying out a bit faster than the dry...so you want something (metal or a bit of cut shingle) over it.
Water travels downhill, so you want it to slope down away from the bolt.
Wind a good 3-4 layers of electrical tape down from the bolt onto the cover.
If you use shingle materiel, it is much more workable in the heat of the day.

If you can put something on the wire to eject most drips before they reach the roof penetration, that may help.
If you can wiggle the eye bolt, its too late and needs redone.

I did it today. I cut all the shingle around the bolt in a circle about an inch wide. It made sort of a well around the bolt all the way down to the ridge beam. I filled all that in with the wet patch extending under the shingles. Then I made a mound on top sloping it away from the bolt. When I put the guy wire back on I pointed all the clamps down hoping the water drips off before it hits the bolt. We are getting a big storm tomorrow night, hopefully I got it.

 

[Ole Slewfoot]

Just in time!

If you don't cover the goo with something, check and recoat every 5 years or so.

 

[Hilltopmasonry]

Polyurethane?


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