Heatstop Applications for Ovens

[cws]

re: Heatstop Applications for Ovens

I'm also having difficulties finding the correct mortar. Anyone have any ideas about a source in the San Diego area. Local yards tell me they can get the Heat Stop 50, but at a price of over $175 a bag. A bit steep wouldn't you think?

[texman]

re: Heatstop Applications for Ovens

trying to find this treasure also. Local brick dealer says he can order for me.
Heat Stop is for online sales of heatstop 50# bags
HS50 HeatStop 50 (50# bag) ................... $68.75 plus $49.00 shipping

I think this is the right stuff. not cheap though. The correct mortar seem to be a problem. I would buy the FB mix but shipping for three bags is $519.00 this is crazy!

[Aegis]

re: Heatstop Applications for Ovens

I used Heatstop 50 for my dome bricks, I paid $50.00 per bag and used 3 bags of it. The stuff worked GREAT! I wanted to add some mass and needed a little more for the vent/chimney area and I tried the home brew mix formula. My wallet is sorry I didn't try it sooner. I thought it was a bit stickier than heatstop 50 and it set up nice and solid! 3 parts sand, one part portland, one part lime, and one part fireclay. The next oven I build (if ever) I would use home brew which should be available all over the USA. I have fired my oven many times and the heatstop50 and home brew are both solid and are performing perfectly. I would not use the two different mortars on the dome for fear of different coefficients of expansion.

Good Luck
John

[Dagored154]

re: Heatstop Applications for Ovens

I just decided to go with Heat Stop 50. found it in Harrisburg Pa but had to pay $85 a bag. just Nuts!

[Les]

re: Heatstop Applications for Ovens

Heat stop is a great product but I am unaware if any one has had issues with the home brew. It worked great for me. The cost and shipping charges made my decision to roll my own a no brainer.

[texman]

re: Heatstop Applications for Ovens

I am using the Alsey flue set, see attached spec sheet. The stuff really gains strength as heat is applied as indicated by the specs. It is around $100/bag with shipping for me from Larkin. Time will tell if it is any better than homebrew, but i doubt it will be. I liked dealing with a ready to go mortar and just adding water. But, if i did it again, i would use homebrew and by some beer with the left over money.
Tracy

[GianniFocaccia]

re: Heatstop Applications for Ovens

But, if i did it again, i would use homebrew and buy some beer with the left over money.

Make that ALOT of beer

[Neil2]

re: Heatstop Applications for Ovens

It may be just a communication problem.

The salesman was probably trying to say that mortars in general are not in the structure to provide strength. Mortars serve to transfer compressive strength and (to some extent sheer strength) from one surface to another.

Mortars are not and should not be considered "glue". Any masonry structure should be held together primarily (ideally entirely) by gravity.

[Tscarborough]

re: Heatstop Applications for Ovens

Well it wasn't me he talked to, although I am sure there was some miscommunication involved. The wet refractory that we carry is great for fireplaces but unusable for most ovens (although I used it on mine) and it has no bond strength at all, and will melt if wetted. We carry Heatstop too though, and when someone I do not recognize asks for firebrick or refractory mortar, I always ask if it is for inside work or outside work.