When to use 2 coats of paint ?

RATM

I'm just wondering about this, is there a hard and fast rule ? I have a room that has 4 walls, 3 pink, one a red. I want to change it and paint 3 a lime green and the fourth white. So I'm wondering do the previous colours have much of an impact on weather or not 2 coats is necessary ?

Also is there a formula for calculating how much paint a job might take ? Litres per square metres or something ?

DublinDIYguy

You should always give 2 coats when changing colour. That red wall thats going white will need 3.
You'll need 5 litres of each. Prob best to buy 10l of the white and paint the ceiling too and keep whats left for the next room, 5l of white costs about €20 and 10l about €30 maybe a bit less.

cardwizzard

RATM wrote: »

I'm just wondering about this, is there a hard and fast rule ? I have a room that has 4 walls, 3 pink, one a red. I want to change it and paint 3 a lime green and the fourth white. So I'm wondering do the previous colours have much of an impact on weather or not 2 coats is necessary ?

Also is there a formula for calculating how much paint a job might take ? Litres per square metres or something ?

Yes, when changing colour at least two coats is the norm. When dealing with colours that have a lot of pigments in them, in your case reds and lime greens, often additional coats are required.

As for the spread rate, its usually around 14/15sqm per litre. However it can change for numerous reasons.

Impossible to tell how much paint you need with out dimensions. Good luck, hope the project goes well.

RATM

Thanks lads, I've a fair idea of what I need now, just gotta find myself some old sheets to cover the carpet and I'm off=) me