Can you use External masonry paint inside ?

WLM21

My daughter phoned my today saying she had seen external masonry paint cheap at her local Aldi, £3.49 for 5 litres.

She asked whether this would also do inside, on plaster

I wouldn't have thought there would be any problem ... but best to ask the experts here

thank you

victor2

I'd be wary of using it for a purpose it's not intended for.
Just from a safety point of view, this is from a label on a well known brand of exterior paint...

I'm no expert and it means nothing to me - it could just be a case of the manufacturer meeting health & safety requirements, but you can get cheap paint for interior use anyway.

Mr.Generous

use it on render or brick inside, I wouldn't use it on plaster the finish wont be very good. cheap though.

oldandhappy

We have always used exterior masonry paint for ceilings in the kitchen and bathrooms and found the results really long lasting and never noticed any odd smells from it...I would for sure if there was....

Jonesya

Might be worth checking the label to see if it advises against indoor use, or contains chemicals for killing algae, lichen etc.

I used masonry paint on the bricks and brickwork inside a garage and remember some brands warning against indoor use. The paint I used didn't make any claims about killing algae, moss etc and didn't have any warnings against indoor use.

Furts

The paint is not spectacularly cheap - contrary to what folks may think. I have used B&Q cheap vinyl silk for many walls - there are offers on it at around £7-10 for 10 litres, and there are folks with discount cards to get this price down I guess.

The paint is thin, so you will need extra coats, but the finish is superb - you pay your money and take your choice.

Which comes back to the Aldi paint - this could be a can of poor quality nonsense, so why take the risk and use it in the wrong place when the proper product can be purchased for not much more?

cyclonebri1

Furts wrote: »

The paint is not spectacularly cheap - contrary to what folks may think. I have used B&Q cheap vinyl silk for many walls - there are offers on it at around £7-10 for 10 litres, and there are folks with discount cards to get this price down I guess.

The paint is thin, so you will need extra coats, but the finish is superb - you pay your money and take your choice.

Which comes back to the Aldi paint - this could be a can of poor quality nonsense, so why take the risk and use it in the wrong place when the proper product can be purchased for not much more?

I'll take this a step further;

Any paint speced for external use should have the contents detailed and additives in the specification,

LOOK, masonry paint is simply emulsion, no magic, it just has to have a few anti fungal/mould resistant additives included.

If you want to talk about resin based masonry paints, which are both very messy and very expensive, then it's a different ballgame

WLM21

Thank you for all the replies.

I have told my daughter to buy normal internal emulsion paint.

I'm worried now though ... I'll now be asked to do the painting .. I just know it !!!

victor2

WLM21 wrote: »

Thank you for all the replies.

I have told my daughter to buy normal internal emulsion paint.

I'm worried now though ... I'll now be asked to do the painting .. I just know it !!!

That's what Dads are for. Just make sure you don't spill any paint on her carpet!

System

I have just used masonry paint in my wet room. No particular smells actually a lot less that "normal " paint.

BarbaraJMcAnally

I've tried using it indoors, too. It looks pretty great to me