Two coats of gloss - am I wasting my time?
When painting outside woodwork with undercoat and gloss I usually go
over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? |
Two coats of gloss - am I wasting my time?
Rednadnerb wrote:
When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? The bond between the wood and the first coat of whatever is on there has to be good. The rest is really just decoration |
Two coats of gloss - am I wasting my time?
"Rednadnerb" wrote in message ... When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? Why do something if you do not know why you are doing it? |
Two coats of gloss - am I wasting my time?
On 4 Oct, 13:48, "Roger" wrote:
"Rednadnerb" wrote in message ... When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? Why do something if you do not know why you are doing it? It seemed like a good idea at the time. |
Two coats of gloss - am I wasting my time?
Roger wrote:
"Rednadnerb" wrote in message ... When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? Why do something if you do not know why you are doing it? Why be a **** if you do not know why you are doing it? -- Dave - The Medway Handyman www.medwayhandyman.co.uk |
Two coats of gloss - am I wasting my time?
Rednadnerb wrote:
When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? Rednadnerb, Paint specification from an AKZO rep on external paintwork (preparation and priming assumed to be done) for longevity: 2 undercoat and 1 gloss coats OR 1 undercoat and 2 gloss coats But always remember that it's the preparation that gives the longevity on any paintwork - if that is poorly done, then the finished coats will simply not last. Cash |
Two coats of gloss - am I wasting my time?
On Sun, 4 Oct 2009 05:24:33 -0700 (PDT), Rednadnerb wrote:
When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? Well, it gives your paintwork an extra thickness, so that would help it survive _external_ factors. Just so long as the underlying adhesion between the wood and the paint is sound, so it doesn't flake off then it sounds like a reasonable idea. After all, we know from expereince that the perparation takes longer than the painting, so if an extra coat extends the lifetime of the work by prportionally longer than a strip / prepare / repaint would, then it's a worthwhile investment in paint and time. |
Two coats of gloss - am I wasting my time?
"Rednadnerb" wrote in message
... When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? If you are painting new wood or over very weathered old paint, consider "Ranch Paint", which is microporous. I used it on well weathered paint several times (having removed the flaky bits and rubbed it down). Worked a treat and didn't "peel". From past experience, ordinary undercoat and gloss would have. Ranch paint isn't cheap but you don't need an undercoat and the finish is good- albeit satin rather than gloss. Probably not good over good old paint as you'd have to do some serious sanding. Brian |
Two coats of gloss - am I wasting my time?
Stuart Noble wrote:
Rednadnerb wrote: When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? The bond between the wood and the first coat of whatever is on there has to be good. The rest is really just decoration I strongly disagree. After a lot of experience in painting wood, I came to the conclusion that what painting does, is pretty specialised, and goes like this. 1/. Knotting. This stabilises the wood and prevents resin creeping under the paint. 2/. Filling removes major imperfections. 3/. Priming mainly has to stick to the wood, and provide a key for other coats. 4/. Filler primer gets rid of grain and other minor imperfections 5/. undercoat is there to provide the base colour and reflective coating. 6/. Top coat is there to fine tune the colour, and to provide a tough surface to protect what is below. On cars, you often see that as a clear lacquer, with the normal paint actually being the 'undercoat'. Now in an outdoor situation, if the top coat gets compromised the underlying coats will fail. Typically UV attack splits the top coat, and water gets into the wood dwells it and splits the paint off. IF - and its not certain - a second coat of top will retard UV attack, or maybe a coat of UV resistant lacquer will stop it getting to the gloss, its well worth putting ion. |
Two coats of gloss - am I wasting my time?
One of the fundemental principles of exterior painting is to repaint
before the original starts to crack thus maintaining the protection. |
Two coats of gloss - am I wasting my time?
Brian Reay wrote:
"Rednadnerb" wrote in message ... When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? If you are painting new wood or over very weathered old paint, consider "Ranch Paint", which is microporous. I used it on well weathered paint several times (having removed the flaky bits and rubbed it down). Worked a treat and didn't "peel". From past experience, ordinary undercoat and gloss would have. Ranch paint isn't cheap but you don't need an undercoat and the finish is good- albeit satin rather than gloss. Probably not good over good old paint as you'd have to do some serious sanding. Brian If you go to the trouble of sanding back to bare wood, wood hardener is the thing to use. After that, any paint goes on like a dream and tends to stay there |
Two coats of gloss - am I wasting my time?
On Sun, 04 Oct 2009 23:25:55 +0100, The Natural Philosopher
wrote: Now in an outdoor situation ... ... use something other than wood. ;-) Don't get me wrong, wood is fine outdoors for trees and bonfires but I would love to get rid of it's use here outdoors asap. 30+ years ago I moved here and put up a new paneled fence. The second set of panels are showing their age whilst the concrete posts look as good as the day I planted them. Rather than replacing the 6" square gate posts for the third time I have a pair of steel ones in the garden ready to go in. The uPVC windows haven't had a lick of paint (or much attention of any kind for that mater) in the 15 or so years they have been in. I just wish I'd made the picket fence out of solid plastic board or steel rather than wood when I replaced that a few years back. I wish I'd had plastic soffits when we had the extension and windows done back then. One less thing to have to waste time, effort and money on (knowing it will all have to be done again a few years later). Wood does have it's purpose though ... it makes nice furniture. ;-) Cheers, T i m |
Two coats of gloss - am I wasting my time?
"Rednadnerb" wrote in message ... When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? better to do one of primer, 2 undercoats (the build) and one top |
Two coats of gloss - am I wasting my time?
On Sunday, 4 October 2009 14:26:08 UTC+1, The Medway Handyman wrote:
Roger wrote: "Rednadnerb" wrote in message ... When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? Why do something if you do not know why you are doing it? Why be a **** if you do not know why you are doing it? Why be so rude? -- Dave - The Medway Handyman www.medwayhandyman.co.uk |
Two coats of gloss - am I wasting my time?
wrote in message
... On Sunday, 4 October 2009 14:26:08 UTC+1, The Medway Handyman wrote: Roger wrote: "Rednadnerb" wrote in message ... When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? Why do something if you do not know why you are doing it? Why be a **** if you do not know why you are doing it? Why be so rude? I found that two coats of gloss were essential with our front door. The previous paint had weathered and peeled in places. No matter how much I sanded the paint smooth, the boundary between the different layers of paint where the top coat either has or has not peeled off, showed as a white hairline in the newly-applied paint, especially since the paint was dark. It was necessary to give that new paint a light sanding and then apply a second coat over the top on the affected panels of the door. I could have stripped off all the paint back to the bare wood, primed and undercoated it and then put on a top coat, but that is a major job given that the door has a lot of fiddly moulding which would have been a pig of a job to get all the paint off the crevices. |
Two coats of gloss - am I wasting my time?
In article ,
wrote: On Sunday, 4 October 2009 14:26:08 UTC+1, The Medway Handyman wrote: Roger wrote: "Rednadnerb" wrote in message ... When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? Why do something if you do not know why you are doing it? Why be a **** if you do not know why you are doing it? Why be so rude? Why are you replying to a post 8 years old? -- *If all the world is a stage, where is the audience sitting? Dave Plowman London SW To e-mail, change noise into sound. |
Two coats of gloss - am I wasting my time?
Why bring up 2009 posts in the first place yawn.
Brian -- ----- - This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please! wrote in message ... On Sunday, 4 October 2009 14:26:08 UTC+1, The Medway Handyman wrote: Roger wrote: "Rednadnerb" wrote in message ... When painting outside woodwork with undercoat and gloss I usually go over the areas that are heavily exposed to rain and sun with a second coat of gloss. But i've never actually read anywhere that this will prolong the life of the paintwork. Am I wasting my time? Why do something if you do not know why you are doing it? Why be a **** if you do not know why you are doing it? Why be so rude? -- Dave - The Medway Handyman www.medwayhandyman.co.uk |
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