Painting over gloss with satinwood

neilmcl

I'm going to be repainting a lot of the skirting and doors upstairs and rather than re-gloss them I want use satinwood instead. I did the downstairs last year and it came out quite well although it was a bit of a PITA having to sand everything down and apply multiple coats of satinwood. This time around I was thing of using Zinnser Bulls Eye 1-2-3 as a primer but do I still need to sand and key the gloss first or can this be applied directly followed by a coat of the satinwood to finish?

Alanp

I would still sand down but just lightly to give the new paint a key, check the instructions on the paint see what that recommends ( primer) 

daveyjp

As you intend using a water based paint over old oil based you will need to sand well to get a good key.

If you want less work use oil based eggshell as only a light sanding is needed.  It takes longer to dry, but you will only need one coat and the finish will be better.

twopenny

I've done this with limited sanding. Used a palm sander for speed.

It all worked a lot better than I expected.

neilmcl

daveyjp said:

As you intend using a water based paint over old oil based you will need to sand well to get a good key.

If you want less work use oil based eggshell as only a light sanding is needed.  It takes longer to dry, but you will only need one coat and the finish will be better.

But I thought that was the whole purpose of something like Zinnser bulls-eye, in that it can be used on just about any surface to prime and create a key for your chosen water based finish paint.

missile

My son used that primer. Light sanding helped to remove surface imperfections and helped the primer key. Poor preparation = poor performance

neilmcl

I'll give it a go with light sand beforehand and see how I go.

Has anyone used any of these so-called liquid sanding/de-glosser treatments before?

Goath

Zinnser IS Oil Based, I know this because I have used a lot of it. In a very heavily Nicotine stained house that I bought... also the oil on the top of the paint when you open it, and the fact you have to stir it for about 15 min before using it gives it away..
Yes you can just paint it over previously glossed surfaces and it will kive you a surface to paint on. But I still prefer to remove the old gloss 1st 

neilmcl

Goath said:

Zinnser IS Oil Based, I know this because I have used a lot of it. In a very heavily Nicotine stained house that I bought... also the oil on the top of the paint when you open it, and the fact you have to stir it for about 15 min before using it gives it away..
Yes you can just paint it over previously glossed surfaces and it will kive you a surface to paint on. But I still prefer to remove the old gloss 1st 

Zinnser BIN is, I specifically mentioned Bullseye 1-2-3, which is water based.

Chickereeeee

I have painted over a lot of oil based gloss paintwork with both both water-based Satinwood and Farrow and Ball Eggshell. Initially I was giving everything a good rub down, prior to using water-based Zinsser BIN 123, then a couple of top coats. After  experimenting, i have found a quick, light rub-down, folllowed by a coat of Zinsser and a couple of the top-coat is fine. (Actuaĺly, it seems to work OK with NO rub down: I have tried it in several out of the way places, but it just seems wrong!). 
I have done this on window frames, skirting boards and doors.