Recent content by grawil

Interesting thoughts guys. For me, dry chem is more appealing than water in the garage and, as I mentioned, my insurance guy talked me out of a water-based sprinkler system for a residential home in Ontario. As for mounting, modern garages are 'sealed' from the home so CO cannot enter the living...

Hey all, Was browsing another forum where someone posted about fire suppression. Has anyone heard of a HAVEN fire bottle? Looks aimed at the residential market as it installs in your ceiling, and discharges an ABC retardant if the fused sensor hits 135F. Each bottle provides effective fire...

No worries Frank. E-C didn't suggest a Canadian dealer in Ontario when exchanged emails with them last year and I've not seen them suggest this in these forums previously. We discussed different shipping options on the phone but the only sensible one was me picking it up in Buffalo. I just found...

Gene, Here's are some doom and gloom papers for your reading pleasure: ACIDIC CORROSION OF HYDRATED CEMENT BASED MATERIALS (part 1) and (part 2) Keep in mind that the authors are strictly considering corrosion and its effects on the concrete. Things are going to be a little different when you...

Transporting hazardous materials across the boarder often means that the cost of shipping equals the cost of the materials. That's an issue for me. A valid concern and especially with kids using the garage. Anti-slip powders will help but your best bet is to go and feel a couple of wet floors...

I looked into shipping epoxy-coat to Canada. Too expensive unless you can pick it up south of the border IMHO. You can contact enviro-epoxy and see if they have a dealer near you.

You need to think carefully about both your arguments here. I'm a chemical engineer, not a concrete expert so I'm probably coming at this from a different perspective. Regarding the acid wash: Understand that muriatic acid (HCl) itself does not crystalize. Never Ever. If you are testing the...

I'm not sure I understand the problem with failing to netralize. Freshly poured concrete will have a pH of 12-13 mostly due to Ca(OH)2. (calcium hydroxide or lime). As it ages, the concrete surface reacts with carbon dioxide in air (carbonation) and the pH of the surface slowly lowers to ~8.5...

While I was washing my floor (after grinding it last week) I noticed there are two low-spots where water pools. Both are 1/8" to 1/4" in depth. One of these is in the middle of the floor and not a big deal, but the other is directing water right down to the foundation wall. Is there an easy way...

So I've done about 1/3 of the floor, grinding wet with my diamond wheel. I cleaned one patch of it with the vacuum, water, more vacuum, etc and it seems to be quite smooth. I've obviously removed material as I have a bucket of sluge and I can see a few spots where the grinding wheel left some...

Thanks guys. You recommend broadcasting as opposed to rolling it in from a tray?

That's what I get for posting after a beer. Try to sound smart, end up sounding stupid. :willy_nil It's grit. Sold to me by the manufacturer. The question is whether I should apply it uniformly or heavier on the expected traffic route?

I'm doing a small residential basement floor that is intended to be a combination utility/laundry area. I am wondering if I should apply the anti-slip colloidal silica uniformly over the floor or if I should apply it heavier on a path leading from the door to the laundry machines? Thanks

I'm prepping a basekment floor for a 100% solids epoxy and I have a quick question. It is a small area (100 sq. ft laundry/utility room)and the concrete is smooth (power trowelled). There is a softer, hand troweled patch in the middle of it from some plumbing repairs (fine sand top-coat). I...

Personally, if I were building a box, it would look like a Hazet box (http://www.hazet.de/uploads/tx_d3mlinkedsources/kap02_e_01.pdf). Not sure it would qualify as sculpture though.