Exterior Gloss Acrylic Paint - Why is it "Exterior Surfaces Only"?

Question

The paint is Dulux Weathershield Exterior Gloss. Just wondered why it would present a problem if I wished to use it indoors, say to paint an internal door.

Answer 1

You're simply paying for external durability. Use it, no problem.

Answer 2

Weathershield Exterior Gloss

Answer 3

Exterior paint - gloss or emulsion - is specially formulated for outside walls which will tend to be rougher than indoors and have to stand up to sometimes harsh weather conditions. Paints will contain chemicals not found, or needed on interior walls. There are also health and safety reasons why you wouldn't use them indoors.

The website below says for emulsions that "These paints are microporous, allowing the painted surface to breathe, so minimising blistering and flaking otherwise caused by moisture coming from within the building ..."

On gloss it quotes it "Gives a tough and durable protective finish. Also available as 1 coat paints. Available in satin or gloss. Are dirt and mould resistant, non-yellowing..."

Exterior gloss paint is also water based not oil based like interior gloss.

Hope that helps.

Answer 4

Gloss paints are more expensive initially but are really long lasting and hard wearing. They are good if you have young children and need to wash the walls down often.



We have used them on the walls of the house I live and they are still good after 30 years. They could do with a brighten up with new fashion colours but they have worn well.



I would easily give them 10 years inside. They could last 20 years with good care.



You would have no trouble using Gloss Paint on the doors,ceiling and architraves.



Good Luck!!!

Answer 5

This doesn't sound right to me .. Presume the sills are wood . Paint is the usual water deterrent,,, . Ok is the wood sound or rotten cause water wont pass through sound wood , Have you established where the water comes through ? Might be a joint between cill and frame which can be sealed with mastic// I would sand the existing paintwork down... apply undercoat , then two coats gloss, Gloss is more effective at repelling water than masonry paint .. You could use afiller if any larger cracks are noticed .

Answer 6

It would not matter if you used it indoors except that you may need to ventilate the room thoroughly because many exterior paints smell even worse than interior ones!

Answer 7

Exterior paint can cost more, especially the speciality paints such as this one. Also the toxic fumes might be much higher making them unsafe for internal use.

Answer 8

It would not it would just be that you were paying extra for a more durable (exterior) paint than you needed.