Submitted by digitalbus123 t3_11c4h08 in DIY
[removed]
Comments
digitalbus123 OP t1_ja1kjtx wrote
The ground concrete looks horrible. You can see the patterns from all the different tiles from the home owners before us
knoegel t1_ja1krty wrote
You can smooth out the concrete. Like sanding wood.
bcossa2001 t1_ja1lorg wrote
There are penetrating stains made for concrete…..typically you powderblast or shot blast the floor then acid etch and then apply the stain….
There are also concrete sealers…..as always the prep is the most important step. I highly recommend NOT using a clear one.
I would not use paint….
[deleted] t1_ja1om3o wrote
[deleted]
digitalbus123 OP t1_ja1onl2 wrote
Even paint specifically for concrete?
drunky_crowette t1_ja1p3g2 wrote
I've heard of using resin to seal it but at that point I'd probably just use resin with pigment instead of painting first
RunTheBull13 t1_ja1q32u wrote
Was this a paint specifically for concrete floors and they were dry? Does it get moisture coming up through them from the ground?
digitalbus123 OP t1_ja1q6s7 wrote
The paint is specifically for concrete! I wouldn’t think so about the moisture it’s indoors
digitalbus123 OP t1_ja1qces wrote
The paint dried for about 24 hours and no seal on it
bcossa2001 t1_ja2mski wrote
Commercial contractor here….I’ve never seen paint applied to concrete….usually it’s some type of special coating like an epoxy which requires a high level of skill to look proper. The biggest issue is moisture vapor emission from the concrete itself that loosens the paint/coating. Companies who apply finishes to concrete will test for the slab for water vapor emission and if it exceeds a certain amount they apply a special sealer that typically costs as much as the finish product. Ground and polished concrete is a popular finish these days but it is an inexact science particularly when there are previous finishes as you are experiencing. You can buy less expensive curing/sealing compounds but these must be reapplied periodically to look nice. Even new slabs that are ground and polished may look bad because of different distribution of the aggregates within the concrete mix. This is not an indication of poor concrete - more a characteristic of concrete itself. It’s also difficult to grind concrete next to a wall…..you must use a different machine so you end up with variations between the ground finish on the concrete. We try to talk owners out of it, or at least convince them to use a tinted product….gray is a popular choice.
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knoegel t1_ja1ke5w wrote
Why are you painting concrete that gets walked on?
Strip everything and seal. Paint is for walls not floors.