Model Boat Mayhem

Technical, Techniques, Hints, and Tips => Painting, Finishing and Care. => Topic started by: verithingeoff on October 21, 2016, 09:07:11 am

Title: Primer
Post by: verithingeoff on October 21, 2016, 09:07:11 am

I've had some problems with the final coat on my wooden hull. Used exactly the same technique which has worked for me in the past i.e. sand/fill/sand/detack/prime/sand/panel wash/detack paint. 99% of the bottom is fine but I had problems as shown in the pics.
(http://i1375.photobucket.com/albums/ag473/geoff122/Model%20Steam/Jenny%20Ann/Hull/IMG_8351_zpsic32pi1b.jpg) (http://s1375.photobucket.com/user/geoff122/media/Model%20Steam/Jenny%20Ann/Hull/IMG_8351_zpsic32pi1b.jpg.html)
(http://i1375.photobucket.com/albums/ag473/geoff122/Model%20Steam/Jenny%20Ann/Hull/IMG_8350_zpseqzb6bka.jpg) (http://s1375.photobucket.com/user/geoff122/media/Model%20Steam/Jenny%20Ann/Hull/IMG_8350_zpseqzb6bka.jpg.html)
(http://i1375.photobucket.com/albums/ag473/geoff122/Model%20Steam/Jenny%20Ann/Hull/IMG_8349_zpst6a0rlcd.jpg) (http://s1375.photobucket.com/user/geoff122/media/Model%20Steam/Jenny%20Ann/Hull/IMG_8349_zpst6a0rlcd.jpg.html)


Anyhow, I've stripped all the protection off and re sanded all the hull, in some places right through to bare wood. Can I re prime the whole hull over the top of a the enamel?

Title: Re: Primer
Post by: Stavros on October 21, 2016, 11:34:04 am

By any chance have you either used plasticoate or halfords paint over enamel




Dave

Title: Re: Primer
Post by: verithingeoff on October 21, 2016, 01:21:03 pm

Neither Dave, Halfords don't operate in Australia, and not Plasticote (http://i80.photobucket.com/albums/j183/gwa_2006/Avatars%20etc/ozzhatcorks.gif) (http://s80.photobucket.com/user/gwa_2006/media/Avatars%20etc/ozzhatcorks.gif.html)

Title: Re: Primer
Post by: Stavros on October 21, 2016, 07:41:57 pm

So what have you used then so we can help you


Dave

Title: Re: Primer
Post by: verithingeoff on October 22, 2016, 02:24:30 am

This Primer http://www.rustoleum.com.au/product-catalog/consumer-brands/auto/primers/filler-primer-spray
This enamel Haymes exterior enamel, mixed to a colour match for me (http://i80.photobucket.com/albums/j183/gwa_2006/Avatars%20etc/ozzhatcorks.gif) (http://s80.photobucket.com/user/gwa_2006/media/Avatars%20etc/ozzhatcorks.gif.html)

Title: Re: Primer
Post by: inertia on October 22, 2016, 09:45:58 am

Geoff
The MSDS stuff on the primer indicates that it's based on acetone and xylene solvents. These are usually effective strippers of enamel paint, which is oil-based.
Sorry, mate, but I think you're going to have to strip the enamel off completely before you apply any new primer.
Dave M

Title: Re: Primer
Post by: verithingeoff on October 23, 2016, 04:37:57 am

Thanks Dave, I had some primer left after doing some engines and I didn't think of the implications...duh!


I'll make a new start.. (http://i80.photobucket.com/albums/j183/gwa_2006/Avatars%20etc/ozzhatcorks.gif) (http://s80.photobucket.com/user/gwa_2006/media/Avatars%20etc/ozzhatcorks.gif.html)