As mentioned in my previous post about "clear" varnish that is
actually yellowish, we have had a problem with mildew stains gradually
forming on a wooden panel in the bathroom where the hand-towel hangs.

I've repainted the panel & am going to repaint the yellowish test area
white again & then slap a few coats of clear [1] acrylic varnish over
it & put the towel hook back up. What else can I do to prevent stains
from gradually forming there?



[1] Really clear --- I've done another test area, smaller this time!

On 23/11/2014 21:46, Adam Funk wrote:
As mentioned in my previous post about "clear" varnish that is
actually yellowish, we have had a problem with mildew stains gradually
forming on a wooden panel in the bathroom where the hand-towel hangs.

I've repainted the panel & am going to repaint the yellowish test area
white again & then slap a few coats of clear [1] acrylic varnish over
it & put the towel hook back up. What else can I do to prevent stains
from gradually forming there?



[1] Really clear --- I've done another test area, smaller this time!

Use a rail that keeps the towel away from the panel. That is, an air gap
behind the towel.

--
Rod

On Sunday, November 23, 2014 10:00:06 PM UTC, Adam Funk wrote:
What else can I do to prevent stains
from gradually forming there?

Install a hot air hand dryer.

Or a roller towel on the back of the door.

Owain

On Sunday, November 23, 2014 10:00:06 PM UTC, Adam Funk wrote:
As mentioned in my previous post about "clear" varnish that is
actually yellowish, we have had a problem with mildew stains gradually
forming on a wooden panel in the bathroom where the hand-towel hangs.

I've repainted the panel & am going to repaint the yellowish test area
white again & then slap a few coats of clear [1] acrylic varnish over
it & put the towel hook back up. What else can I do to prevent stains
from gradually forming there?



[1] Really clear --- I've done another test area, smaller this time!

Add to the paint borax, copper sulphate (green), zinc sulphate or aspirin. Borax & ZnSO4 can also be used in clear water based varnishes.


NT

"Adam Funk" wrote in message
...
As mentioned in my previous post about "clear" varnish that is
actually yellowish, we have had a problem with mildew stains gradually
forming on a wooden panel in the bathroom where the hand-towel hangs.

I've repainted the panel & am going to repaint the yellowish test area
white again & then slap a few coats of clear [1] acrylic varnish over
it & put the towel hook back up. What else can I do to prevent stains
from gradually forming there?



[1] Really clear --- I've done another test area, smaller this time!

Tiles are best in the bathroom.
Wood will always be a problem.

In article ,
writes:
On Sunday, November 23, 2014 10:00:06 PM UTC, Adam Funk wrote:
As mentioned in my previous post about "clear" varnish that is
actually yellowish, we have had a problem with mildew stains gradually
forming on a wooden panel in the bathroom where the hand-towel hangs.

I've repainted the panel & am going to repaint the yellowish test area
white again & then slap a few coats of clear [1] acrylic varnish over
it & put the towel hook back up. What else can I do to prevent stains
from gradually forming there?



[1] Really clear --- I've done another test area, smaller this time!

Add to the paint borax, copper sulphate (green), zinc sulphate or aspirin. Borax & ZnSO4 can also be used in clear water based varnishes.

and then hope the damp towel doesn't touch it.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

On Mon, 24 Nov 2014 09:51:49 +0000 (UTC), Andrew Gabriel wrote:

In article ,
writes:
On Sunday, November 23, 2014 10:00:06 PM UTC, Adam Funk wrote:
As mentioned in my previous post about "clear" varnish that is
actually yellowish, we have had a problem with mildew stains gradually
forming on a wooden panel in the bathroom where the hand-towel hangs.

I've repainted the panel & am going to repaint the yellowish test area
white again & then slap a few coats of clear [1] acrylic varnish over
it & put the towel hook back up. What else can I do to prevent stains
from gradually forming there?

[1] Really clear --- I've done another test area, smaller this time!

Add to the paint borax, copper sulphate (green), zinc sulphate or aspirin. Borax & ZnSO4 can also be used in clear water based varnishes.

and then hope the damp towel doesn't touch it.

The double rail stainless, er, rails from Aldi are good as they keep the
towel clear of the wall etc. Pig to fit, as there's close to zero
'forgivngness' on the holes. I've 2 and a shelf.
As mentiones, a roller towel for a hand towel also works. The one in the
kitchen is spaced out about 20mm extra from the wall, so the towel hangs
loose.
--
Peter.
The gods will stay away
whilst religions hold sway

On Monday, November 24, 2014 9:52:05 AM UTC, Andrew Gabriel wrote:
In article ,
writes:
On Sunday, November 23, 2014 10:00:06 PM UTC, Adam Funk wrote:

As mentioned in my previous post about "clear" varnish that is
actually yellowish, we have had a problem with mildew stains gradually
forming on a wooden panel in the bathroom where the hand-towel hangs.

I've repainted the panel & am going to repaint the yellowish test area
white again & then slap a few coats of clear [1] acrylic varnish over
it & put the towel hook back up. What else can I do to prevent stains
from gradually forming there?

[1] Really clear --- I've done another test area, smaller this time!

Add to the paint borax, copper sulphate (green), zinc sulphate or aspirin. Borax & ZnSO4 can also be used in clear water based varnishes.

and then hope the damp towel doesn't touch it.

cant think why


NT

On 2014-11-24, harryagain wrote:


"Adam Funk" wrote in message
...
As mentioned in my previous post about "clear" varnish that is
actually yellowish, we have had a problem with mildew stains gradually
forming on a wooden panel in the bathroom where the hand-towel hangs.

I've repainted the panel & am going to repaint the yellowish test area
white again & then slap a few coats of clear [1] acrylic varnish over
it & put the towel hook back up. What else can I do to prevent stains
from gradually forming there?



[1] Really clear --- I've done another test area, smaller this time!

Tiles are best in the bathroom.
Wood will always be a problem.

Thanks for all the replies. I agree with this --- but I am stuck in
this case with my design mistakes from years ago. I'm going to try
several coats of acrylic varnish & remembering to wipe the board clean
frequently as a preventive measure.

On 2014-11-24, wrote:

On Sunday, November 23, 2014 10:00:06 PM UTC, Adam Funk wrote:
As mentioned in my previous post about "clear" varnish that is
actually yellowish, we have had a problem with mildew stains gradually
forming on a wooden panel in the bathroom where the hand-towel hangs.

I've repainted the panel & am going to repaint the yellowish test area
white again & then slap a few coats of clear [1] acrylic varnish over
it & put the towel hook back up. What else can I do to prevent stains
from gradually forming there?



[1] Really clear --- I've done another test area, smaller this time!

Add to the paint borax, copper sulphate (green), zinc sulphate or aspirin. Borax & ZnSO4 can also be used in clear water based varnishes.

How much borax?

On Monday, December 1, 2014 2:45:05 PM UTC, Adam Funk wrote:
On 2014-11-24, wrote:
On Sunday, November 23, 2014 10:00:06 PM UTC, Adam Funk wrote:

As mentioned in my previous post about "clear" varnish that is
actually yellowish, we have had a problem with mildew stains gradually
forming on a wooden panel in the bathroom where the hand-towel hangs.

I've repainted the panel & am going to repaint the yellowish test area
white again & then slap a few coats of clear [1] acrylic varnish over
it & put the towel hook back up. What else can I do to prevent stains
from gradually forming there?



[1] Really clear --- I've done another test area, smaller this time!

Add to the paint borax, copper sulphate (green), zinc sulphate or aspirin. Borax & ZnSO4 can also be used in clear water based varnishes.

How much borax?

Your guess is as good as mine.


NT

On 01/12/2014 17:12, wrote:
On Monday, December 1, 2014 2:45:05 PM UTC, Adam Funk wrote:
On 2014-11-24, wrote:
On Sunday, November 23, 2014 10:00:06 PM UTC, Adam Funk wrote:

As mentioned in my previous post about "clear" varnish that is
actually yellowish, we have had a problem with mildew stains gradually
forming on a wooden panel in the bathroom where the hand-towel hangs.

I've repainted the panel & am going to repaint the yellowish test area
white again & then slap a few coats of clear [1] acrylic varnish over
it & put the towel hook back up. What else can I do to prevent stains
from gradually forming there?



[1] Really clear --- I've done another test area, smaller this time!

Add to the paint borax, copper sulphate (green), zinc sulphate or aspirin. Borax & ZnSO4 can also be used in clear water based varnishes.

How much borax?

Your guess is as good as mine.


NT


Borax is not very soluble. 4% max I think

On Monday, December 1, 2014 6:44:06 PM UTC, stuart noble wrote:
On 01/12/2014 17:12, wrote:
On Monday, December 1, 2014 2:45:05 PM UTC, Adam Funk wrote:
On 2014-11-24, wrote:
On Sunday, November 23, 2014 10:00:06 PM UTC, Adam Funk wrote:

As mentioned in my previous post about "clear" varnish that is
actually yellowish, we have had a problem with mildew stains gradually
forming on a wooden panel in the bathroom where the hand-towel hangs.

I've repainted the panel & am going to repaint the yellowish test area
white again & then slap a few coats of clear [1] acrylic varnish over
it & put the towel hook back up. What else can I do to prevent stains
from gradually forming there?



[1] Really clear --- I've done another test area, smaller this time!

Add to the paint borax, copper sulphate (green), zinc sulphate or aspirin. Borax & ZnSO4 can also be used in clear water based varnishes.

How much borax?

Your guess is as good as mine.

Borax is not very soluble. 4% max I think

4% in paint solution will end up many times higher once the film is dried. I wouldn't go anywhere near that high. But I don't have any basis for an optimium amount to suggest.

I did calculate for salicylic acid, but can't remember what I based it on. It worked out to something like 8 aspirin tablets per 2.5l. It was still doing the job 10 years later.


NT

On 2014-12-01, wrote:

On Monday, December 1, 2014 6:44:06 PM UTC, stuart noble wrote:
On 01/12/2014 17:12, wrote:
On Monday, December 1, 2014 2:45:05 PM UTC, Adam Funk wrote:

How much borax?

Your guess is as good as mine.

Borax is not very soluble. 4% max I think

4% in paint solution will end up many times higher once the film is dried. I wouldn't go anywhere near that high. But I don't have any basis for an optimium amount to suggest.

I did calculate for salicylic acid, but can't remember what I based it on. It worked out to something like 8 aspirin tablets per 2.5l. It was still doing the job 10 years later.

Thanks. I'll try adding some to another coat or 2 of clear varnish.
Since I need to buy 1 kg of borax & I'm using a couple of tablespoons
of varnish per coat, I think I'll have a lifetime supply.