Osmo PolyX issues

[E92M3STEVE]

Morning All,

Were in the process of getting all the solid oak floor downstairs refinished in Osmo PolyX. The decorator applied 1st coat yesterday 11am giving us 26 hours drying time.

Seemed to go on ok but has dried Milky and really patchy.

Any thoughts? He seemed to have used half a 2.5l Tin on 20sqm. Seems a lot to me? Could be over applied?

Thanks in advance for any feedback.

Steve







Left is just after application, the right is as it is now.

[Harry Flashman]

That is really odd - I used the same stuff throughout our house without any issues whatsoever.

Obvious questions:

- have you accidentally used the white tinted stuff?
- did he stir it properly?
- was there any sort of previous surface (e.g some unremoved wax) on those boards?

These are Osmo PolyX gloss used on our Victorian boards, which were sanded first, before and after (this is the nursery but we have used it everywhere, on almost every floor). Tell your guy that this is what it should look like. It will mark and dull down with time, but should not be milky.

78 front bed by baconrashers, on Flickr

Untitled by baconrashers, on Flickr

[AlexJ12]

E92M3STEVE said:

Morning All,

Were in the process of getting all the solid oak floor downstairs refinished in Osmo PolyX. The decorator applied 1st coat yesterday 11am giving us 26 hours drying time.

Seemed to go on ok but has dried Milky and really patchy.

Any thoughts? He seemed to have used half a 2.5l Tin on 20sqm. Seems a lot to me? Could be over applied?

Thanks in advance for any feedback.

Steve







Left is just after application, the right is as it is now.

Is the polyx Satin or Matt?

The silvering if it’s a Matt finish is the matting agent, which if not stirred and shaken enough can appear, It usually disappears once the second coat is applied.

A 2.5 litre tin should do 40 sq mts if your applying properly, he may of applied it with a thick pile roller than a short pile like Osmo recommend or there brush.

[Slagathore]

It does look a bit like the white pigment in the Polyx Raw stuff.

It does look like he's used a bit too much and not wiped/buffed the excess off after initial application.

[E92M3STEVE]

Thanks guys, it's the Matt polyx not the gloss. It's got a little better as the days gone on but still really patchy and all the knots are white.

Looks like not stirred it properly and or applied too much. The tin states 60sqm and hes used well over half on 20sqm.

I'll have a chat in the morning and see what he thinks. Risk a 2nd coat or re sand it

[dhutch]

Let us know how it goes! Does sound like far to much put on, and the Matting agent (new term to me) causing the white patches.

With varnish I have always tended to use gloss for the sealing and undercoats if using matt, and the just matt for the top coat. But obviously that is easier because you almost always have some gloss varnish on the go, different if a specialist product.


Daniel

[E92M3STEVE]

Looks like were sorted now. Sand back and different technique for application. Ditched the roller and brushed.

2 coats on now and looking good.

Thanks for the feedback guys.

[lazorlash]

Hi Steve, I know this post is a few years old now but I've run in to the exact same issue with our floors and there are limited posts online that outline a fix. Was wondering if you can remember how much sanding was required before you re coated your floors? I've already sanded back lightly using some p180 which was massively improved the floor but there are still signs of "milkyness" and the knots are still white, considering sanding back even harder but thought I'd have a stab at asking if you had any advice from your experience Cheers, Josh

[Hickeyv]

Hi there, just jumping on this thread. I know it’s a bit old but haven’t been able to find an answer to my issue.

I’ve spent 2 days sanding my floor then oiled it with Osmo clear last night. I followed the guide video online which says little roller round the edge then do the rest of the floor with a big roller. I’ve now got a darker line round the edge where the little roller went. It’s almost like it started drying too quick before I got to the rest of it….or the little roller was too thick.

How did you resolve your issue please? What grit paper did you use to sand it back please?

Did you just sand back one then do one more coat…or 2 more coats please?

Hope you see this. Thank you!

[NorthDave]

Bizarrely I have just had exactly the same issue with a kitchen worktop. I know I didnt mix it properly as I used an old can and there was a big sludge at the bottom which I applied after the initial top half. I probably put it on too thick too.

Osmo reference a cleaning solution or sanding. I've just sanded it down and am now waiting for a fresh batch of Top Oil this time.

I did use the Poly X on a table a few years ago and it has been brilliant. Really hard wearing and still looks as good as new.

[Hickeyv]

I’m going to try again today. Sand 120grit on the darker patches, give it a good mix and try applying with a brush instead.

Will see the results tomorrow!!