im painting the radiators in my rooms the same calour as the walls with crown acrylic eggshell, does this need an undercoat or can it go strait on to the rads. the rads are factory finnish.
No adverting allowed BristolDec, read the rules!!
The reason painters were taught to give rads two coats of gloss and not to undercoat them is that undercoat reacts with the heat and causes the rads to yellow a lot quicker than two coats of gloss would.
i hate rads painted the same colour as the walls. almost seem to give off less heat too..
I find a satinwood finish looks best and is easy to clean. Emulsion holds the dirt.
The reason painters were taught to give rads two coats of gloss and not to undercoat them is that undercoat reacts with the heat and causes the rads to yellow a lot quicker than two coats of gloss would.
Not sure about that one??
Any oil based paint will yellow over time whether it be undercoat or gloss. Undercoat sets harder and is a lot less flexible than gloss that is why painters tend to give them 2 coats of gloss, so that the paint flexes as the rads heat up and cool down. You will notice just how flexible gloss is when you come to clean a plastic paint kettle out. Gloss covered ones will peel out, undercoat ones will break away.
The reason painters were taught to give rads two coats of gloss and not to undercoat them is that undercoat reacts with the heat and causes the rads to yellow a lot quicker than two coats of gloss would.
Not sure about that one??
Any oil based paint will yellow over time whether it be undercoat or gloss. Undercoat sets harder and is a lot less flexible than gloss that is why painters tend to give them 2 coats of gloss, so that the paint flexes as the rads heat up and cool down. You will notice just how flexible gloss is when you come to clean a plastic paint kettle out. Gloss covered ones will peel out, undercoat ones will break away.
But gloss is not flexible at all. Why do you think exterior woodwork that is finished in gloss cracks and flakes particularly when exposed to prolonged sunlight ?, it's because it cannot move with the timber during temperature extremes because of it's total inflexibility, it is after all really just pigmented varnish.
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local