high tempature pipe sealant

[rayi]

How high of a temperature does the fire box get. I want to seal my drop flu pan but locally I can only get rated to 550 degrees. Will that be enough if not does some one know of a place in lower MI where I can get it

[Daves Maple Farm]

I don't think 550 degree will do it but not sure. Suggest you look at a fireplace company and you may have better results. We used Hi Temp caulk on any of our joints. Think it was rated at or near 1000 degrees. Sorry cant be of more help. Check yellow pages or amazon on the net.

[jmayerl]

You are looking for something to seal holes in a flue pan? Sorry you won't find any product for that.

[maple flats]

I've had stack temperature as high as 1600 degrees before I added aof (air over fire), thus the temp under the flues pan is considerably hotter especially before some heat is extracted near the front of the flues pan. I think you need a sealer that can withstand well over 2000 degrees, maybe even 2600-2800.

[lpakiz]

Yep, when temp in my stack is 800 +~, temp under drop flue pan is 1800 degrees, and that 2 feet back into the flue pan. Bet the firebox is over 2000. Seems amazing that there would be over 1000 degrees of heat transferred into the sap in just 6 feet of flue pan.

[BAP]

Are you trying to seal the drain pipe in your flu pan or fix holes in it?

[RileySugarbush]

Solder. The pan material, and therefore the sealant, doesn't get significantly higher than the liquid contained in it.

[rayi]

I am trying to seal the drain for the flu pan. I heard some one say hi temp caulk. Whats that

[jmayerl]

Just screw in a piece of pipe. As long as it's npt , those threads are meant to basically self seal. I use brass to go into the SS pan since you don't want to have the similar metals screwed together . Never had a problem with mine

[rayi]

I thought that you didn't want different metals togeather due to chemical reaction like corrosion.

[whalems]

I know on my new pan from Smoky Lake Maple Jim recommended using brass pipe into the stainless flue drain.

[wiam]

I use stainless into stainless no problem. But it always comes apart at the end of season.

[Bucket Head]

Dissimilar metals will corrode over time with moisture present. So its best to go stainless to stainless. Some folks will reccomend a different and softer metal (brass) to avoid galling. Stainless steel bolts/nuts and pipe/fittings threads sometimes damage each other, making assembly or disassembly impossible. There is a pink-colored teflon tape available to wrap stainless threads with which both seals and eases the joining of the pieces. CDL offers it- I don't know if the others do. You could ask about it at your local plumbing supply also.

Steve

[maple flats]

Lowe's even carry it, (the pink tape) they call it "heavy duty" thread tape. While the fire gets extremely hot, the fitting won't get much above 219 because the liquid is on the inside. In fact, being the back of the flue pan where the drain in likely won't get over maybe 215. High quality Teflon tape is good on steam at something like 300+ degrees.

[PerryFamily]

Webb sells the blue thread tape and blue pipe dope for stainless. Wrap first then some dope and you should be good.