Home Repair forum - basement floor - paint to seal then tile later?

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basement floor - paint to seal then tile later?

still me

2007-07-28, 9:25 am

Couple of questions:

I am going to (eventually) put tile and likely radiant heat in my
basement. In the meantime, I am thinking of painting the floor to seal
it (drylock?). I get lots of water thru my dehumidifiers down there
and I suspect much of it comes through the floors. I'd like to cut
down on that and get a usable surface on it until I can tile some time
in the future. Basement is 20 years old.

Questions:

- is painting the floor a bad idea if I plan to tile? Does the thinset
need to actually adhere to the floor later or can it just sit on top?

- is Drylock still the best thing or are there better paints or
sealers now? Is the latex as good as the old oil version ?

DanG

2007-07-28, 9:25 am

Paint is absolutely the worst thing you could possibly do.

No VCT tile will ever stick to a high moisture floor. The one
exception to that would be use Fritz adhesive - very expensive and
may not be available to consumers

Water problems need to be solved on the outside. Underfloor water
requires subloor drainage and sump pump work.

The radiant heat I know about is buried in or under the concrete
floor, you must be talking about something else.

There is one product you may be interested in finding. It grows
crystals in the voids in concrete in the presence of water. It is
the one product I would spend any time on in an attempt to seal
leaking concrete from the inside.
<http://www.xypex.com/products/produ...s.php?pageID=14>

--
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)
dgriff237@7cox.net

"still me" <wheeledBob@yahoo.com> wrote in message
news:ifcma3pvl8ohbk7q4r5uebt778cnu7oneg@4ax.com...
> Couple of questions:
>
> I am going to (eventually) put tile and likely radiant heat in
> my
> basement. In the meantime, I am thinking of painting the floor
> to seal
> it (drylock?). I get lots of water thru my dehumidifiers down
> there
> and I suspect much of it comes through the floors. I'd like to
> cut
> down on that and get a usable surface on it until I can tile
> some time
> in the future. Basement is 20 years old.
>
> Questions:
>
> - is painting the floor a bad idea if I plan to tile? Does the
> thinset
> need to actually adhere to the floor later or can it just sit on
> top?
>
> - is Drylock still the best thing or are there better paints or
> sealers now? Is the latex as good as the old oil version ?
>

still me

2007-07-29, 3:25 am

On Sat, 28 Jul 2007 09:09:13 -0500, "DanG" <dgriff23@7cox.net> wrote:

>Paint is absolutely the worst thing you could possibly do.
>
>No VCT tile will ever stick to a high moisture floor. The one
>exception to that would be use Fritz adhesive - very expensive and
>may not be available to consumers

OK... but what's VCT ? I'm looking at thinset and ceramic.

>Water problems need to be solved on the outside. Underfloor water
>requires subloor drainage and sump pump work.

Sorry, ain't gonna happen. It's the middle of Summer, dirt under the
floor is slightly damp, no visible water unless you dig a few feet
below that. I still pull 10 gals a day out thru the dehumidifiers. We
use sumps here but they only come into play when the water table rises
in spring.

>The radiant heat I know about is buried in or under the concrete
>floor, you must be talking about something else.

How about installing on top of the floor and putting a layer of
concrete on top of which the tile floor sits? Perhaps not ideal, but I
really don't want to jackhammer up the floor at this point.

>There is one product you may be interested in finding. It grows
>crystals in the voids in concrete in the presence of water. It is
>the one product I would spend any time on in an attempt to seal
>leaking concrete from the inside.
><http://www.xypex.com/products/produ...s.php?pageID=14>

Thanks, I'll check it out.

Just Joshin

2007-07-31, 3:25 am

On Sat, 28 Jul 2007 12:23:15 GMT, still me <wheeledBob@yahoo.com>
wrote:

>Couple of questions:
>
>I am going to (eventually) put tile and likely radiant heat in my
>basement. In the meantime, I am thinking of painting the floor to seal
>it (drylock?). I get lots of water thru my dehumidifiers down there
>and I suspect much of it comes through the floors. I'd like to cut
>down on that and get a usable surface on it until I can tile some time
>in the future. Basement is 20 years old.
>
>Questions:
>
>- is painting the floor a bad idea if I plan to tile? Does the thinset
>need to actually adhere to the floor later or can it just sit on top?
>
>- is Drylock still the best thing or are there better paints or
>sealers now? Is the latex as good as the old oil version ?

Paint sounds like it will prevent a good mortar to cement contact. I
would skip it.

tom @ www.Consolidated-Loans.info

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