DIYnot
Local | Network
   DIYnot > Forums
Local | Network
DIYnot Network Local DIYnot Network Local  
  Forum IndexForum Index     RulesRules    HelpHelp     Join FREERegister Free     About CookiesCookies     SearchSearch     LoginLogin 

Do I need to apply primer and undercoat when repainting?


 
Post new topic   Reply to topic    DIYnot.com Forum Index > Decorating and Painting
Search this topic :: View previous topic :: View next topic  
Author Message
badhairday

from United Kingdom

Joined: 20 Mar 2007
Posts: 88
Location: London,
United Kingdom

PostPosted: Wed May 19, 2010 10:13 am Reply with quote

I'm having the external woodwork on my house repainted (the window frames, front door etc) as the paint is currently peeling and I dont want it to be damaged from the elements.

I had been under the impression that it would be best to apply primer and undercoat as well, but my painter is adamant that 2 coats of gloss is sufficient.

I'd be interested to hear what you professional painters think of this, as my painter is more of a 'handyman'.

Thanks in advance
Back to top
 Alert Moderators

If you do not want to see this advert, click here to login or if you are new click here to join free.
Robbie uk

from United Kingdom

Joined: 09 Apr 2007
Posts: 1440
Location: Cheshire,
United Kingdom
Thanked: 160 times

PostPosted: Wed May 19, 2010 8:27 pm Reply with quote

If the paint is peeling then two coats of gloss wont help. All woodwork should be thoroughly sanded down and any raw or exposed wood needs a coat of primer. This will protect it from the elements and also allow the undercoat to adhere to it and not soak in. This then will be rubbed down. A second undercoat may be applied if the first has not covered too well. After that a very light sanding and a dust off and a coat of gloss. Some people like two coats of gloss but that is not always neccessary.
Back to top
 Alert Moderators
badhairday

from United Kingdom

Joined: 20 Mar 2007
Posts: 88
Location: London,
United Kingdom

PostPosted: Thu May 20, 2010 6:28 am Reply with quote

Robbie uk wrote:
If the paint is peeling then two coats of gloss wont help. All woodwork should be thoroughly sanded down and any raw or exposed wood needs a coat of primer. This will protect it from the elements and also allow the undercoat to adhere to it and not soak in. This then will be rubbed down. A second undercoat may be applied if the first has not covered too well. After that a very light sanding and a dust off and a coat of gloss. Some people like two coats of gloss but that is not always neccessary.


Thanks for your response Rob. So I have 2 more questions:
1) If after sanding down there is no exposed wood, am I to understand that gloss might be sufficient?
2) Is gloss important? Can I just apply a black undercoat and leave it at that?
Back to top
 Alert Moderators
joe-90

from United Kingdom

Joined: 28 Oct 2005
Posts: 29255
Location: United Kingdom
Thanked: 853 times

PostPosted: Thu May 20, 2010 8:17 am Reply with quote

Robbie is spot on.
Back to top
 Alert Moderators
Robbie uk

from United Kingdom

Joined: 09 Apr 2007
Posts: 1440
Location: Cheshire,
United Kingdom
Thanked: 160 times

PostPosted: Thu May 20, 2010 6:59 pm Reply with quote

As the woodwork is outside i wouldnt really just gloss onto the sanded surface. It just wouldnt last long enough. The undercoat will also help the new gloss to adhere and help protect the timber for longer.
The glos is inportant becuase it is a finishing coat that protects everything. The undercoat does not have the additives and chemicals that the gloss does to protect the surface and would otherwise soon peel off.
Back to top
 Alert Moderators
Search this topic :: View previous topic :: View next topic  
Post new topic   Reply to topic    DIYnot.com Forum Index > Decorating and Painting All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
Similar Topics   Replies   Views   Posted 
whats the best way to apply wax to wood? 6 100 Sun May 13, 2012 8:14 pm
how to apply size to walls. 2 80 Fri Feb 22, 2013 8:14 pm
What to apply on plaster before painting walls? 7 180 Tue Mar 13, 2012 12:53 pm
Using a roller to apply gloss 16 380 Fri Mar 02, 2012 4:50 pm
Painted silk accidently... Can I apply matt on top of silk 19 320 Thu Mar 29, 2012 8:42 am


 
DIYnot
Find an Expert | Find a Supplier | Search DIYnot.com
Network | Advertising | Newsletter
DIY | DIY How To | @home | DIY Wiki | DIY Forum
By using this site you agree to our Terms of Service / Disclaimer.
Please read our Privacy Policy. Copyright © 2000-2014 DIYnot Limited.