Expanding foam & painting MDF window cill

[5oysterman2]

Afternoon guys, made a pig's ear of putting in a MDF window sill. Got foam over a lot of it. Have removed it all using foam eater. But as the tin says may remove paint & it has.
So i have half the sill primed & the other half bare, will I still be able to Undercoat & top coat it. Cheers for any replies

 

[endecotp]

I'd start with MDF primer.

 

[5oysterman2]

I'd start with MDF primer.

Cheers for the reply.

 

[opps]

At one stage, 95% of all of my work was painting MDF furniture. I hated MDF primer.

I soon discovered that the cheapo Leyland acrylic primer was the only acrylic primer that didn't clog my sandpapers.

MDF primers tend to be waterbased and all waterbased primers cause the MDF surface to swell slightly.

Pre-primed MDF tends to be primed with waterbased primers but they coat them so thickly that you don't notice how poor the surface quality is until you use 240+ abrasives to sand them back.

By all means use MDF primer if you want, but in my professional opinion, they are a waste of money.

 

[5oysterman2]

At one stage, 95% of all of my work was painting MDF furniture. I hated MDF primer.

I soon discovered that the cheapo Leyland acrylic primer was the only acrylic primer that didn't clog my sandpapers.

MDF primers tend to be waterbased and all waterbased primers cause the MDF surface to swell slightly.

Pre-primed MDF tends to be primed with waterbased primers but they coat them so thickly that you don't notice how poor the surface quality is until you use 240+ abrasives to sand them back.

By all means use MDF primer if you want, but in my professional opinion, they are a waste of money.

What to use instead? Emulsion or something else

 

[5oysterman2]

What shall i use instead, emulsion or something else,?

 

[opps]

What shall i use instead, emulsion or something else,?

Please don't use emulsion.

Why not try the Leyland acrylic primer that I recommended?

Toolstation sell a small tin for £5.67, whilst the MDF version is £8.98

 

[5oysterman2]

Sorry opps, obviously didn't read it properly (tired) . Cheers

 

[richman]

Guys, Anybody have any idea how do they make this?

Found this from interior decoration picture from national polystyrene factory,Dubai

 

[richman]

I dont think this is made from Styrofoam. Isn't it? See that central pillar I think it is made from some kind of crystals.

 

[phatboy]

I dont think this is made from Styrofoam. Isn't it? See that central pillar I think it is made from some kind of crystals.

I think you've been taking some kind of crystals, how is anything you wrote relevant to the primer question?!