Now that that basic structure is more or less completed, it’s time to tackle the interior of the garage.
One of the first things I looked into when designing the garage was what to put on the floor. There seems to be an ever increasing number of options for garage floors (which is a good thing)… Most of them look fantastic when installed, but some handle particular work situations better than others. I had used VCT in my previous workshop and know a person using interlocking plastic tiles in their garage. Both were adequate for my intended purpose (auto restoration), but they both had some drawbacks that I really didn’t want to deal with. After seeing an epoxy floor locally as well as those that have been posted on this site, I decided that this was the floor system that would meet all of my requirements.
I made some calls and did quite a bit of research. The conclusion that I came to was that I needed a 100% solids epoxy and that the local companies that I talked to were very expensive. From the feedback on the Garage Journal, it seemed that a DIY installation with acceptable results was possible for considerably less money than the quotes from professional installers that I received... So it looked like I would be putting this floor in myself. One of the epoxy companies that stood out for me was Wolverine Coatings. First off, they produced their own product and did their own R&D. They also have a significant list of references in various applications (some of which are very demanding environments). Wolverine Coatings also was very responsive to questions that were posed (both mine and others) and were presented in a way that you didn’t have to be a chemical engineer to understand. I spoke and corresponded with Eric at Wolverine Coatings as well as Fred at Alpha Garage and worked out a plan for my garage. The product list that Eric and Fred proposed consisted of:
• 4.5 gallons of BondTite 1101 (1 – 3 gallon kit and 2 – 3 quart kits) for use as a primer
• 10.5 gallons of LiquaTile 1184 (3 – 3 gallon kits and 2 – 3 quart kits) for use as the color coat as well as a medium for broadcast color chips
• 3.75 gallons of EnduraShield 2254 (3 – 1.25 gallon kits) for use as a UV resistant clear top coat to seal the color chips
• 1 gallon of IntegraFlex 1921 (1 – 1 gallon kit) to fill the expansion cuts in the slab
• 2 pair of spike shoes (since my wife would be helping me)
This product list was thought to be adequate for my garage and compressor room which total approximately 1,350 square feet. One thing that you might notice is that I did not purchase my color chips from Wolverine Coatings/Alpha Garage. The cost per pound (even with a volume discount as I would have received) for 225 pounds of chips was not inexpensive. Fred has told me the he and Eric are working on a source for quality chips at a better price than what was available when I ordered. Hopefully, by the time you read this, they will have that color chip source in place.
The transaction was very easy (done through Pay Pal) and the product arrived within a two days of my order. The garage wasn’t quite ready as there was still work being done so I had to wait for several weeks before I could start my floor. As it worked out, I got my opportunity to start this weekend.
I worked on getting things together that I would need for the installation… Some of these items I had, others I would have to purchase. It’s a rather long list, but I’m going to post it here for others to look at and decide which of these items they will need on their own floor project.
Drill (for mixing)
Extension cords
Garden hose and nozzle
Mixers (4)
Buckets (2 gallon buckets for mixing product)
Measuring cups (5 – 1 quart cups and 5 – 2 quart cups for measuring product)
Plastic drop cloth (I used what was left of my vapor barrier – worked well)
Tape (painters tape for masking)
Painters plastic (for covering walls)
Broom
Dust pan & hand broom
Hand grinder
Rollers (Sherwin Williams, 18” with ¼” nap, shed resistant, epoxy rated)
Roller extension pole
Brushes (3 – nylon bristle brushes)
Scrapers (to remove any residue on floor)
Disposable gloves
Floor squeegee
Spiked shoes
Shop-Vac
Knee pads
Power-washer
Safety equipment – eyes, ears, nose/mouth
Tape measure
Calculator
Scale (for measuring color chips)
Spatulas – cheap ones from dollar store
Paper shop towels
Wash bucket
Wash brush
MEK (for cleanup)
Garbage can (with bag for cleanup)
That pretty much covered it for me, but for others, the list may change a bit.
Cleanup, even with a new, never occupied garage is probably going to be the worst part of the project from what I’ve experienced so far. If you can make it through that, the rest of the job should go smoothly. I started off giving the garage a thorough cleaning (sweep and vacuum) to prepare for the next step.
Wolverine Coatings recommends either mechanical texturing (shot blasting or grinding) as a preferred method or acid etching (with muriatic acid). I did not have access to the required mechanical equipment and I had heard horror stories about corrosion issues with muriatic acid so I was looking for another alternative. Wolverine Coatings offers an organic etcher, but it was outside of my budget. I initially tried Behr’s concrete etcher (phosphoric acid base), but it really didn’t do too much of anything. I finally bit the bullet and used the muriatic acid as recommended (you were right Fred) and the process seemed to well after that. The muriatic acid that I used was the standard swimming pool acid (31% hydrochloric acid) and I diluted it three parts water to one part acid. Remember to add the acid to the water, not the other way around. I used a plastic garden watering can to wet the surface, but a mop and bucket would work just as well.
The fumes are not too bad if you have adequate ventilation (I kept the garage doors open), but they are still present. I wasn’t about to bet on the strength of the fumes and went with a respirator, goggles, rubber gloves… The whole nine yards. It just isn’t worth taking chances on something like this.
The chemical etching process causes the muriatic acid to bubble when it hits the concrete surface. When the bubbling is done, the process is complete and what is left should be washed off of the surface before it dries. I ended up washing the surface of the slab after etching three times (including once with a scrub brush to make sure that I got everything). The surface of the slab is definite “rougher” than it was before although some areas appear rougher than others… Not sure if it was an acid issue or a concrete issue, but retreating the spots with acid seemed to make very little difference so I left it at that.
In the end, this was typical of what the concrete looked like.
I started this process Friday evening after work and spent the better part of four hours out there the first night cleaning, etching and then washing it off twice. I washed the floor an additional two times on Saturday and let the floor dry out with the doors open (temperature has been in the mid 60s during the day and low 40s at night).
Sunday morning my wife joined me in helping to tape off the garage door hardware and walls. Everything was painted so I didn’t want to take a chance of errant epoxy finding its way on to the walls, doors, etc. Took us a while to do, but it will help protect the walls from potential mishaps (you can bet that if we hadn’t done this, something would have happened that would require a full repaint). I left the garage doors open a bit so that we could epoxy underneath them and covered the opening with some plywood. We took a break and came back a few hours later to start on the primer coat of BondTite 1101.
I used a piece of vapor barrier that I had left over as a staging/mixing area and I would recommend that anyone attempting this process do the same. It keeps everything in one area and also keeps the entire work area clean (and the area underneath epoxy free). We broke the garage down into six parcels and this seemed to work very well in our case. I was concerned that the epoxy would harden quickly so we decided that after the two parts of the 1101 were mixed, we would move as quickly as possible with my wife cutting in with a brush and me getting the open area with the roller. As it turned out, my fears of this product being like a “five minute” epoxy adhesive were unfounded… There was plenty of time to apply the product. We were able to move at a very good pace and used the same roller and measuring cups for the entire project. The 1101 goes on very easily and you can see the concrete get darker as it covers the surface. I had contemplated getting the notched squeegee, but it really wasn’t necessary. At the end of the job, we have enough left to do the lift cover plates and the compressor room so it appears that we used enough of the product.
Here is a photo of the floor with the BondTite 1101 applied.
All things considered, the project has started off very well.
Today, we will use the IntegraFlex 1921 to fill the expansion cuts and also apply the LiquaTile 1184 and color chips. More information and photos to follow.
Regards,
Stan