Paint advice needed

Albermarle

stuart45 said:

 

I'm going to sand down the area too I just meant do I scrap the whole wall or just the area that is peeling and then sand it down ect. 

Also could I use an undercoat paint instead of watering down to do the mist coat? 

Do I use emulsion paint on the radiators or do they need a specific paint? 

It really depends on the amount of time you want to spend on the prep, condition of the walls and how good you want the finish. 
If most of the walls are OK, you can also use a filler to level out the patches. One like Knauf fill and finish is really easy to use and sand down. 
Stripping all the old emulsion off is obviously a lot more work. 
You can paint the rads with emulsion, but radiator paint lasts longer. 

I paint mine with satinwood ( water based ) . Sometimes the first coat does not go on so great ( depends on what they have been painted with before) but the second one is OK.

OP - Make sure the radiators are cold when you paint them.

bjorn_toby_wilde

As you won’t know what the woodwork has been painted with before, water based or solvent based, a good fix is to use a high adhesion primer like Bullseye 123. This will make sure that whatever paint you use as a top coat won’t just chip or peel off.

HugoandHudsonsmum

Would this be ok to put on my walls before I use my top coat paint as it says it can be used as a mist coat? 

HugoandHudsonsmum

As I can't post links it was the crown trade cover mat drywall primer

Albermarle

HugoandHudsonsmum said:

As I can't post links it was the crown trade cover mat drywall primer

I think you can post links now you have made 10 posts ?

HugoandHudsonsmum

Albermarle said:

HugoandHudsonsmum said:

As I can't post links it was the crown trade cover mat drywall primer

I think you can post links now you have made 10 posts ?

I tried to post the link but a red message came up saying I had to be around awhile longer before I can post links 

HugoandHudsonsmum

bjorn_toby_wilde said:

As you won’t know what the woodwork has been painted with before, water based or solvent based, a good fix is to use a high adhesion primer like Bullseye 123. This will make sure that whatever paint you use as a top coat won’t just chip or peel off.

I've just been reading about zinsser bullseye 123 and it says it's a multi-purpose primer and can be used as an undercoat so could I use this on my walls before putting my top coats on? 

bjorn_toby_wilde

HugoandHudsonsmum said:

bjorn_toby_wilde said:

As you won’t know what the woodwork has been painted with before, water based or solvent based, a good fix is to use a high adhesion primer like Bullseye 123. This will make sure that whatever paint you use as a top coat won’t just chip or peel off.

I've just been reading about zinsser bullseye 123 and it says it's a multi-purpose primer and can be used as an undercoat so could I use this on my walls before putting my top coats on? 

Bullseye 123 is a very good primer but personally I wouldn’t use it on plaster.  It’s ideal for woodwork though. Products like Peelstop and Gardz are designed to prime plaster and drywall.  Having said that, a mist coat on the plaster, since it’s already been painted once should suffice.

HugoandHudsonsmum

bjorn_toby_wilde said:

HugoandHudsonsmum said:

bjorn_toby_wilde said:

As you won’t know what the woodwork has been painted with before, water based or solvent based, a good fix is to use a high adhesion primer like Bullseye 123. This will make sure that whatever paint you use as a top coat won’t just chip or peel off.

I've just been reading about zinsser bullseye 123 and it says it's a multi-purpose primer and can be used as an undercoat so could I use this on my walls before putting my top coats on? 

Bullseye 123 is a very good primer but personally I wouldn’t use it on plaster.  It’s ideal for woodwork though. Products like Peelstop and Gardz are designed to prime plaster and drywall.  Having said that, a mist coat on the plaster, since it’s already been painted once should suffice.

Thanks the first room I'm starting with only has peeling in one area and it's only small there's no peeling anywhere else just very faint hairline cracks which I believe I use fine filler on and small holes where she used pins to hold pictures up which I can use filler for. 

What mist coat/ undercoat would you recommend as I don't feel confident mixing paint and water together to make a mist coat as I'll properly measure wrong. 

I'm using crown trade clean Extreme as top coat. 

bjorn_toby_wilde

This would be my approach.

For the peeling area, scrape off anything that’s loose then put on a coat of Peelstop which effectively glues down the remaining paint. Use a wide blade filler knife and apply Toupret fine surface filler to the edges of the peeled areas. This will help them blend in so you don’t see a distinct ridge between the peeled and unpeeled areas.  Sand down smooth (180 grit paper).

Fill the nail holes with a filler (I like Toupret because it doesn’t flash and sands easily but most fillers will be ok).  Hairline cracks - If they’re really fine then paint over them. A mm or more then cut into them with a knife to widen them out. It sounds counterintuitive but they are easier to fill like that and less likely to reopen. Fill then sand flat (180 grit again).

Clean everything down with sugar soap and water. Grease, finger marks and dust from sanding will all stop paint adhering properly.

Mist coat - around 10% dilution is enough. Add the paint to the water, not the other way around. Use a large yoghurt pot or similar. Add a measured 10% of water then gradually add the 90% paint, stirring as you go. You’re looking for a slightly thinner consistency than the paint, not too thin like milk. The idea is that the mist coat will soak into the plaster and not dry too quickly. If it dries quickly it won’t have chance to bond properly with the plaster. Apply this to the filled areas and any bare plaster.

Finally, two coats of the Clean Extreme.

Cut in first around the ceiling edges with a nice wide brush (2 1/2” at least).Tape along the edge of the woodwork with yellow Frog Tape before you cut in. Not essential but I really like the clean edges you get with it.

Paint the walls with a roller and a pole.  I’d recommend watching a YouTube video on applying paint with a roller. It’s easy to do but if you want a really nice finish then it’s important to use the right technique and keep a wet edge as you paint. Never stop half way across a wall. The pole isn’t essential for walls but it makes the job so much easier and less back breaking.
https://m.youtube.com/watch?v=snJ8kwcNTqE&pp=0gcJCTIBo7VqN5tD

Sorry if that’s a lot of info in one go. If any of that’s unclear just ask.