im sure there were some decorators on here before, im redoing charlies bedroom and the woodwork was new last time, undercoated and sanded 3 times to get a nice smooth finish for gloss, i used johnstones undercoat and liquid gloss, it really was like a mirror as im very ocd about paintwork and has to be perfect, it has had the usual yellowing but has worn quite well otherwise and is still a lot whiter than most other paints ive seen

 

now ive been looking at paints and thinking of using johnstones aqua paint and undercoat but someone mentioned that its no good if the surfaces (woodwork) has already been painted in oil based undercoat and gloss

 

does anyone know if this is true and had experience with it? google seems to bring up conflicting storys

 

thanks in advance

 

Allan

Using the aqua paints (water based) on top of traditional (oil based) paints is fine, but you will need to get a really good key on the gloss, (which you'd do anyway). It can suffer easily from knocks if not as it just 'lays' on top. As you know bud, good decorating is all in the prep.

Can I ask why you want to use the aqua? Obviously drying times are a lot quicker and you don't have the smell but as yet it's still an inferior product IMO. If you have the time then use the traditional oil based product.

 

Daffy.

Taken from the Johnstones site:

 

Q. How do I redecorate my internal woodwork which has a solvent based gloss finish using Johnstone’s Aqua Water Based Gloss?

A. After thoroughly abrading the glossy surfaces apply one coat of Johnstone’s Aqua Water Based Undercoat followed by two coats of Johnstone’s Aqua Water Based Gloss. Alternatives in a satin finish would be an initial coat of Joncryl Water Based Primer Undercoat followed by the Acrylic Satin.

 

Having painted many houses over the years, as long as you rub down the top coat sufficiently then apply the undercoat, it will be fine.

Oil based paints utilise UV light to stabilise the paint, so in darker areas over time the paint will yellow, so they recommend a water based paint for darker rooms or rooms with less light.

cheers guys, the water based stuff is easier and quicker to apply, the majority of the room will be painted in vinly matt white and didt want shiny gloss paintwork as i know the water based is very white but not as shiny as liquid

 

also ive got a time frame, i wanna try and get this whole room prepped and painted within the week (work full time so will be early mornings and nights)

You'll be fine then bud. Key the woodwork first. You won't have to worry about getting a bit of the vinyl Matt on it then. If it's a quality one, it's not too dissimilar to the aqua based undercoat anyhow. Hope life's treating you well Al.

cheers mate, got another child on the way (another boy) due in may, hence trying to get everything sorted quickly as im also getting my staircase plastered in 2 weeks time so got that to do aswell, also thought about getting a bit emulsion on the woodwork, i use johnstones covaplus for the ceilings and walls, so hopefully only one wall going in color for cutting in lol

 

life is decent at the min, enjoying work, another child on the way, and loving the running, its all i do, sleep eat run repeat lol

 

would love a zed but that is a long way off, races and running shoes cost a fortune lol

Al, you have to work water based really quickly otherwise you dont get the perfect finish (dont keep going over it). oil based gloss is easier to work and get the better finish.. pros and cons with both.. if you dont get a good key it will seperate...

cheers mate, got another child on the way (another boy) due in may, hence trying to get everything sorted quickly as im also getting my staircase plastered in 2 weeks time so got that to do aswell, also thought about getting a bit emulsion on the woodwork, i use johnstones covaplus for the ceilings and walls, so hopefully only one wall going in color for cutting in lol

 

life is decent at the min, enjoying work, another child on the way, and loving the running, its all i do, sleep eat run repeat lol

 

would love a zed but that is a long way off, races and running shoes cost a fortune lol

 

Congrats on the incoming new edition matey. You're right, those running shoes are expensive, my wife is currently in training for the London marathon in April and has a few pairs of different running shoes!

cheers harby mate, all taken on board

 

joel, thats awesome, i could have put in for a marra number but i dont think im ready for it yet, i would like to do it at a good pace and im a few years training off that yet, its apperently a great experience and im currently training with my mate as he is doing it

 

im doing the harrier leauge cross country events, im loving it

Johnstones covaplus is no better than B&Q emulsion but twice the price, i did a comparison for coverage and saved my client a fortune. My step daughter had to use Johnstones for her flat as the voucher she got from the housing only uses them as the supplier of the paint etc, i went through 5 trade tubs to do a 2 bed flat in white, had i had to pay for it, i know where i would have gone lol

 

Congrats on the new addition to the family and glad family life is going well for you and Shell :thumbup:

Having painted many houses over the years, as long as you rub down the top coat sufficiently then apply the undercoat, it will be fine.

Oil based paints utilise UV light to stabilise the paint, so in darker areas over time the paint will yellow, so they recommend a water based paint for darker rooms or rooms with less light.

 

Well- every day's a school day......... I painted the woodwork in my daughter's room with top quality expensive oil based satin/eggshell and after 18+ months it had yellowed yet the next door room was done in water based and didnt yellow. I had no idea about the UV thing with oil based. Thanks for your info, her room doesn't have a lot of natural light......

Personally once something has been painted with an oil based paint, I never change it back, unless I was completely stripping the material bare again.

gonna stick to what i know, pinched some leyland undercoat (oil based) from work, and found a nearly full tin of johnstones liquid gloss in the loft (6 months old)

 

get some johnstones white vinly matt and ive got half a tin of dulux blue so probs get another 2.5 of dulux, be cheaper that way and i know it gives good results, will just have to put up with the smell and wait for the paint to dry lol, least i know i get a good finish on it

 

cheers for the advice though guys, much appreciated, still gonna do me stairs in the quick stuff as its a dark area and will be all new wood