Clicking on "Data Sheet" gives:
"Build up to the desired thickness using successive 1/8” layers."
One of the major problems patching concrete is bonding to the original
concrete. That is probably what the "polymer modifiers" are for. I did
not read the instructions carefully, but I assume you want clean
concrete, and a rough surface may help.
This stuff sounds better than bondo and other ideas to me.
"Higgs Boson" wrote in message
I am (STILL!!) working on repainting my concrete porch (approx 10x10 + 2
Scraping off decades of paint is a bitch. Earlier layers oil-based; later
ones water-based (California banned oil-based). Uneven wearing. Spots that
look like beaches on a lake...various depths.
In past years I used SOMETHING ???? to fill in that did not wear well.
Paint store heard my sad story & said Bondo could be used to fill in low
Cover it with Trex. Future problems solved. WW
On Tuesday, October 15, 2013 6:37:01 PM UTC-7, WW wrote:
I LOVE Trex, but never thought of applying it over concrete. Do you know of situations where this has been done? Does it require a "bed" to "nestle" in?
If so, what is advised? What about the steps, risers and treads?
Also: Around the E. and S. sides of the porch, the concrete was evidently poured at a slight angle -- perhaps to facilitate rain runoff?
These areas are about 14" wide, and run the length of the E & S walls - 10' ea.
One would have to cut the Trex separately and butt it into the flat layers, yes?
Bondo is the last thing I'd use. Warm climate? Cold? Cracks or just
scraggly surface (missing aggregate)? I would not bother scraping off
old paint....pressure wash. If paint is adhering well, sand that.
There is mortar for resurfacing concrete. I've been dabbling with
concrete and mortar lately, making planters and stepping stones for
yard, but no experience patching other that using liquid crack filler.
If I were in a lazy mood, and the suface didn't require structural help
or filling deep defects, I'd use premixed latex stucco patching
stuff...used it on the Florida condo to fill broken c.b. and (as mortar
and stucco) on a hole in wall prior to painting. Worked beautifully,
and lots easier than mixing/cleaning up 'crete.
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