Spray painting advice

Grueller

Just some background info. I am a joiner by trade although I haven't made my living from it for well over 10 years. The workshop I was trained in had a specialist wood finisher so I never really learned the art of finishing my work properly.

Now I am in my own home I have a few projects to do I want to make and finish them myself. The first one is to fill the spandrel of my stairs with a badly needed storage unit.
I have the unit made and want to spray the doors, end panel and solid frames an ivory colour. These are all made from red deal.

I have a very good respirator, a sealey spray gun and 200 litre compressor. I have all components sanded to circa 400 grit and the wood is still in the raw.

My local hardware supplies becker acroma products.

I have several questions.
1. Do I need to use a sealer before the primer and if so which one
2. What primer should I use
3. How many coats
4. What grit should I sand to between coats of primer
5. How many coats of water based paint will I need to apply
6. Do I need to seal the paint afterwards and if so what product should I use?

I am determined to get the hang of this as the kitchen needs re finishing, I need to build in shelving units and storage in the office and I have several built in wardrobes that need painting as they are made from mahogany finished chip board. When I have gotten the hang of it I want to spray the ballustrade, strings and risers of the stairs ivory/ cream leaving the handrail, newels and treads in the original oak.

Thanks for reading and I am looking forward to hearing any advice from those more knowledgable than me, ie anybody.

peter bermingham

The becker acroma primer is ok put on one coat and see how it looks if you feel it needs a second then apply one don't go mad light coats. 1 may be 2 primer and same with top coat. (Grit). what shape is the pine in if its fairly good 240 then 320 after the primer if you feel it needs 2 top coats 320 will be ok before you apply the last top coat i never seal colors but you can if you like just more expense. Your on about water base paint your better off getting two pack polyurethane.(cant think of the name of the paint but its the one with no hardener) think its called AC is the other type you could get. With the 2 pack your going to need 2 pack thinners and thinners for cleaning the gun what ever you do DON'T LEAVE THE 2 PACK IN THE GUN OVER NIGHT

Grueller

peter bermingham wrote: »

The becker acroma primer is ok put on one coat and see how it looks if you feel it needs a second then apply one don't go mad light coats. 1 may be 2 primer and same with top coat. (Grit). what shape is the pine in if its fairly good 240 then 320 after the primer if you feel it needs 2 top coats 320 will be ok before you apply the last top coat i never seal colors but you can if you like just more expense. Your on about water base paint your better off getting two pack polyurethane.(cant think of the name of the paint but its the one with no hardener) think its called AC is the other type you could get. With the 2 pack your going to need 2 pack thinners and thinners for cleaning the gun what ever you do DON'T LEAVE THE 2 PACK IN THE GUN OVER NIGHT

2 pac paint. This is basically the same paint that is used to paint cars? Do most paint suppliers ie my local hardware carry this? Any particular brand to look out for? I assume it comes in a range of finishes such as matt, gloss etc? What price roughly would 2.5 litres of 2 pac be?Thanks for the reply and sorry for all the questions.

cardwizzard

Becker aroma is quality paint. I prefer the acid catalyst which would be oil but there water based is v v good also. Make up your mind on either and go for it.

Either primer will go off in an hour tops. If needed apply another so it's solid. I only ever apply one top coat as it can become brittle. With that said it dries rock hard and is durable for anything.

Sanding is trial and error. Just until you get it really smooth. Wet and dry for a final touch. Use a tack cloth to remove any dust.

The quality of finish will depend on your gun and tip. I've never used yours but I'd have a practice Beforehand on waste material.

Good luck and post pics!

Grueller

cardwizzard wrote: »

Becker aroma is quality paint. I prefer the acid catalyst which would be oil but there water based is v v good also. Make up your mind on either and go for it.

Either primer will go off in an hour tops. If needed apply another so it's solid. I only ever apply one top coat as it can become brittle. With that said it dries rock hard and is durable for anything.

Sanding is trial and error. Just until you get it really smooth. Wet and dry for a final touch. Use a tack cloth to remove any dust.

The quality of finish will depend on your gun and tip. I've never used yours but I'd have a practice Beforehand on waste material.

Good luck and post pics!

Thanks cardwizzard. Does the water based paint need thinning or is it ready to spray? Water just for the clean up for the gun too I assume?

cardwizzard

Grueller wrote: »

Thanks cardwizzard. Does the water based paint need thinning or is it ready to spray? Water just for the clean up for the gun too I assume?

Again depends on your set up and tip/needle. Spend 15 mins until you get a consistence your happy with. Add a little, and go from there.

One shot on kill

Remember your primar should match you top coat ie. pc/ac.

pending how many top coats you want you will need to choose your primer correctly. if its water based you will be fine using the ac primer. And outing on as many coats as you want.

If you use the 2 pac paint (ac) as suggested. Which is what I use all the time and find it very hard to use anything else.
With one top coat the pc primer will work fine but two top coats on this the second coat will react.

If you wanna do two top coats which most ac paints are designed to be used as far as I know anyway. You will need an ac primer which will stop any reaction in the top coats.

If your in any doubt whether your doing 1 or 2 top coats just use the ac primer.

I myself have no used water based paint over ac primer myself but I couldn't imagine a problem.

I wouldn't recommend water based paint myself as the finish is very some if it doesn't catch the primer right ie. Sanded to smooth between coats and yes it can hapPen.
Plus the water based paint take far to long to dry in my opinion and they need a good dry warm room to go well and hard.

Best of luck other the job.

Grueller

One shot on kill wrote: »

Remember your primar should match you top coat ie. pc/ac.

pending how many top coats you want you will need to choose your primer correctly. if its water based you will be fine using the ac primer. And outing on as many coats as you want.

If you use the 2 pac paint (ac) as suggested. Which is what I use all the time and find it very hard to use anything else.
With one top coat the pc primer will work fine but two top coats on this the second coat will react.

If you wanna do two top coats which most ac paints are designed to be used as far as I know anyway. You will need an ac primer which will stop any reaction in the top coats.

If your in any doubt whether your doing 1 or 2 top coats just use the ac primer.

I myself have no used water based paint over ac primer myself but I couldn't imagine a problem.

I wouldn't recommend water based paint myself as the finish is very some if it doesn't catch the primer right ie. Sanded to smooth between coats and yes it can hapPen.
Plus the water based paint take far to long to dry in my opinion and they need a good dry warm room to go well and hard.

Best of luck other the job.

I was using the compressor to inflate a trailer tyre during the week and the compressor blew the motor.It is a 200L fini compressor still under warranty so I have it sent back to the supplier since yesterday and am waiting for them to have a look at it and see am I going to be granted a repair or replacement. Holding me up a week or so but I am busy with the day job and calving on the farm atm anyhow so I don't mind so much.
I have decided on 2 pac paint just for yhe quicker drying timw time really. Thanks for all the advice. Whenever this gets finished I will post photos.

recipio

Its down to choosing the correct viscosity time and needle size. So far I've only used varnishes but for the Becker Acroma paints the info should be on the can ?
Anybody on here have a water closet for spraying ?