I am having a garage and workshop built and am wondering what to do
with the concrete floor. My original plan was to paint it with
workshop floor paint but a google search turned up the possibility of
sealing it with clear acrylic. Another thought was is there something
that can be added to the concrete before the floors are poured that
will save me having to do anything afterwards?
Any advice gratefully received.
Some years ago, having used floor paint which is fine for a period then
needs re-doing, I decided to fix 12mm OSB / Sterling Board down before re-
painting. This has made a huge difference to the comfort of working in the
workshop. All I did was to drill straight through it and plug&screw
dirrectly into the concrete (making sure the screws weren't long enough to
penetrate the damp membrane). The dust level is much reduced and as I say
far nicer to stand on, and more friendly to dropped tools.
I'm currently building an extension to my garage / workshop in front of the
existing one (this time REALLY for a car!) and will use the same approach..
Don't use the sealer, well you could try it but I did that then
painted over it with International paint (grey). It lasts ok but the
car tyres pull patches off due to being hot. 187miles in 2 hours they
are anyway. ;-) so it has flaked off around those areas. The rest
isn't too bad but I'd try a small patch before doing it all and see
what you think or as someone suggested cover the concrete with
something else. :-)
We used ordinary chipboard floorboards for our workshop and then painted the
surface. No problems with water, it just sat on the paint surface and any
scuffs and nicks were soon filled with a dollop of floorpaint or if deeper
then a bit of filler. It got a lot of traffic and in the end we just settled
for a yearly clean and repaint. When we moved we used the same principle but
added a layer of polystyrene which made a hell of a difference to both
comfort levels and warmth.
I've walked a lot on it, but more to the point have moved two lathes out
each weighing 3/4 ton, and one lathe back in (1 ton) and an EDM machine -
mostly on rollers but a bit of pushing and levering and so far its fine. The
OSB is semi waterproof as its intended for shuttering applications so water
so far hasn't been a problem to it (and my personal door into the workshop
does get rain blown in under it, and the suds tank on my power saw leaks etc
etc !) No doubt it will need painting at irregular intervals but the surface
You can buy prop. floow sealer for this purpose which is designed to
penetrate a little and then stop all the dust problems. Usually, AFAIK,
dust problems are caused by the concrete being over worked when installed,
causing water to rise to the surface. I am no expert but some amy be able
to give more advice about this.
Why not just throw down some old carpet over it. Depends what you are going
to do in there I guess but I have found some old wool or polypropelene ones
are best and give a nice comfort and warmth factor too
If you want something that will be effective and really last, then a 2
part epoxy floor paint is very effective.
I used a two stage system of a sealer followed by two coats of finish.
Each of these is a two component material.
http://tinyurl.com/2fdf7 for the sealer
for the paint.
This does have to be applied according to the directions and the
sealer coverage in practice is closer to 5m^2 rather than the
theoretical 8. The paint pretty much matches theoretical coverage.
The result is a very robust finish which is not a bit like regular
single part floor paints. It will stand up to *very* hard commercial
During the construction of the floor it is worth insulating it with
50mm or even 100mm Jablite (that's cheap) and of course a DPC.
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