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jeffrey.keyser 08-11-2009 09:12 PM

Refmix mortar
1. I cannot easily obtain fireclay. Any recommendations instead of the sand-fireclay mixture for the underfloor paste? I was going to use either plan sand or a thin layer of Refmix mortar.

2. Any objections with using Refmix mortar in construction of the vent, chimney, and openning arch?


james 08-12-2009 02:33 AM

Re: Refmix mortar
Hey Jeff,

Refmix will be perfect for the vent, chimney and opening arch. That area gets hot, so using a high temperature mortar is the right thing to do. Plus, it has a nice, fine grey finish, so it will look nice.

I don't think you need to go to the trouble or expense of mortaring down your floor bricks. If you can't find fireclay, you can use a bed of fine sand and tap your floor bricks into place with a rubber mallet.

Would other builders agree with that?

pwcoppard 08-12-2009 07:03 AM

Re: Refmix mortar
I also found that by time i cut all my bricks in half, i had more than enough dust/sand for underneath the hearth. i still have a bag left over. But it would be a long drive from Calgary to deliver it to you :))

OMJB 08-24-2010 03:30 PM

Re: Refmix mortar
Any idea where you can get refmix or a good refractory cement in calgary?

pwcoppard 08-30-2010 06:42 AM

Re: Refmix mortar
i bought most of my masonry supplies, including Heatstop 50, from

Alomar Building Products
7107 Fairmount Drive Southeast, Calgary, AB T2H 0X6 (403) 291-4740

they are not very good at answering the phone or taking messages, but extremely helpful when i dropped by.


OMJB 09-13-2010 11:49 AM

Re: Refmix mortar
Thanks Philip. They were helpful.

pwcoppard 09-13-2010 09:54 PM

Re: Refmix mortar
Good luck with the build. i bought some fabulous stone for the oven opening from Alomar too.

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