Next stage of decorating front door and next problem

[stringman]

Hi all

following in from my previous post
http://www.diynot.com/forums/viewtopic.php?t=225975
I waited patiently and then some more ( over a week) and sanded down the (white)undercoat lightly with p1000 wet and dry.
I have applied the 1st coat of the satin paint using the following method ( which i use for gloss) :

apply with a small gloss roller and gently brush out the (orange peel) with a 1" brush.

Now the problems i have are:
the paint coverage was really bad and looked really patchy and the brush marks look horrible.

in a fit of frustration ( and desperation) I applied a second coat via the roller and brushed it out again.

Now bearing in mind that the tin says it needs two coats only and its (sort of) had two coats it still looks patchy.

I am thinking that a light sanding should get rid of the current brush marks but would really appreciate som advice oon how to get a good result.

thinking I may have to go to gloss !!

Thanks very much in advance

 

[sparkwright]

What about sanding down to a flat, even finish; undercoat any dark areas if necessary, and apply topcoat with just a clean brush. Not a roller.

You could try painting it when it's not too hot and sunny so it doesn't dry too quickly.

 

[sparkwright]

If the sanded down surface still looks patchy then undercoat the whole door first.

When working with white, if you get the undercoat perfect so there are no streaks or patches, then you will get perfect coverage with the topcoat.

Other advice would be to paint any panels first, then followed by the horizontal bits, then the vertical bits.

 

[stringman]

thenks guys
the patchyness is more like where i have brushed it out unevenly.
The thing is, when you brush out the roller with gloss the brush marks seem to "drop out" wherea with this satin it doesnt at all.

I did the 1st coat today about 5pm so not too hot.
would it be worth thinning the paint at all?

My initial thouught is to sand down the brushmarks and try again with the roller ( maybe thinning the paint 5%) but use a wider brush and even less pressure.
I am hoping that by doing 2, 3 or even 4 coats i will get a nice solid colour

keep it coming

 

[Robbie uk]

If your getting brush maks then the paint is too thick. I assume that the undercoat is oil based. Thin this down. If you use a foam roller it wont put enough paint on the door to lay off with the brush. The action of the roller up and down lets air get into the paint allowing it to dry to quickly. It then becomes hard to lay off with a brush. The gloss needs to be thinned to allow it to go on easy enough. You have to work quick and not hang about. If its a panelled door the panels need to be done first then the inner verticles, then the horizontal bars and finish with the two side rails.

 

[stringman]

I may be being a bit thick and / or tired but this seems a bit contradictorary

If your getting brush maks then the paint is too thick. I assume that the undercoat is oil based. Thin this down.

thin what down the undercoat ( which is dried and sanded) or the satin?

If you use a foam roller it wont put enough paint on the door to lay off with the brush. But you just said the paint was too thick
The action of the roller up and down lets air get into the paint allowing it to dry to quickly. It then becomes hard to lay off with a brush. The gloss needs to be thinned to allow it to go on easy enough. But I am using (water based) Satin not glossYou have to work quick and not hang about. If its a panelled door the panels need to be done first then the inner verticles, then the horizontal bars and finish with the two side rails.

hey I have done something right I was beginning to think i was a complete numpty.


sorry if i sound abrubt or sarcastic , thats not my intention at all just a bit confused about the advice

 

[stringman]

Robbie,
just re read your post and had a bit of a thought

you mentioned problems using a foam roller ( designed for gloss)

as the satin is water based is it worth using an emulsion roller and then brushing it out?

thanks

 

[Robbie uk]

Water based paint dry too quick in my opinion and if the weather is warm its even harder to keep a wet edge going. I would use an oil based undercoat and gloss. The undercoat, when dry can be rubbed down quite smooth. Water based undercoat (Acrylic) cannot. Oil based gloss will stay wet longer allowing you to finish the door. If the door was a flush panelled one then i would say yes use a roller and lay it off after, but if it has any panels or moulding on it then just a brush.
Panel doors have to be completed in the right order which stops you brushing over parts that have already been painted.
I meant the undercoat and gloss can be thinned prior to being used. I got the impression that you were going to sand it all down and do it again, sorry.

 

[stringman]

Well I have done the next coat
first I sanded out the brush marks
then i watered down the paint slightly
I tried two methods:
I painted all the moulding with a small brush

then on some panels i applied the paint with an emulsion roller and then brushed it out
on the others I just painted with the brush.

Still got some brush marks ( made no difference which method) but less of them.

the problem is still the coverage.

when i undercoated and sanded there was the odd tiny bit of blue( the old colour) showing through.
even after two ( and in some cases 3) the red "appears darker" and in others the red is apppears lighter ( where the undercoat was thicker)

I am wondering whether to keep laying on more coats or to give up and buy some gloss?

IF i go the gloss route could i get away with just sading down the satin to key it and appply the gloss?

many thanks