Build Your Own Arcade Controls Forum

Main => Woodworking => Topic started by: Hawkweber on January 16, 2010, 10:48:15 pm

Title: When to prime?
Post by: Hawkweber on January 16, 2010, 10:48:15 pm

Working with MDF and will be priming it with oil-based primer/sealer but I was wondering if I should do this to each piece BEFORE assembling the parts (gluing them - will the primer interfere with adhesion) or if it is recommended to assemble it and then prime/seal? 

Title: Re: When to prime?
Post by: fixedpigs on January 16, 2010, 10:57:32 pm

if you are planning on doing any detail work of different colours...it'd probably be best to do that before assembly...

otherwise it'll save you a lot of time to do it after assembly...

 :cheers:

Title: Re: When to prime?
Post by: Hawkweber on January 17, 2010, 07:15:53 pm

Nope - no fancy schmancy painting - just the basic semi-gloss black with some semi-gloss gold on the edges.

BTW - that Avatar of yours is wild.

Title: Re: When to prime?
Post by: HaRuMaN on January 18, 2010, 10:34:24 am

You might want to re-think painting the edges, and go with a gold t-molding instead.

Title: Re: When to prime?
Post by: Hawkweber on January 19, 2010, 07:10:20 pm

Quote from: HarumaN on January 18, 2010, 10:34:24 am

You might want to re-think painting the edges, and go with a gold t-molding instead.

Well, it's for a portable arcade unit I'm building and in order to minimize weight I'm using 1/2" mdf.  I haven't seen 1/2" wide T-molding, and I don't really think there is enough edge showing to warrant it even if I could find it.

Title: Re: When to prime?
Post by: HaRuMaN on January 20, 2010, 08:15:45 am

Quote from: Hawkweber on January 19, 2010, 07:10:20 pm

Quote from: HarumaN on January 18, 2010, 10:34:24 am

You might want to re-think painting the edges, and go with a gold t-molding instead.

Well, it's for a portable arcade unit I'm building and in order to minimize weight I'm using 1/2" mdf.  I haven't seen 1/2" wide T-molding, and I don't really think there is enough edge showing to warrant it even if I could find it.

http://www.t-molding.com/store/product.php?productid=10&cat=25&page=1 (http://www.t-molding.com/store/product.php?productid=10&cat=25&page=1)

White, but you could paint it gold.

Title: Re: When to prime?
Post by: SephYuyX on January 21, 2010, 06:08:54 pm

Could also buy http://www.t-molding.com/store/product.php?productid=23&cat=12&page=1 (http://www.t-molding.com/store/product.php?productid=23&cat=12&page=1) if you think youre trimming skills are up to it.

Title: Re: When to prime?
Post by: Hawkweber on January 21, 2010, 10:59:53 pm

Well, I had already designed, cut, and sanded the cab parts as if I wasn't going to use T-Molding (since I didn't know that 1/2" was available), so I guess it's moot now.  I'll keep it in mind for possible future cabs, though.

Thanks for all the info!

Title: Re: When to prime?
Post by: HaRuMaN on January 22, 2010, 08:05:51 am

Just be careful with your cab, then.  MDF isn't very solid when it comes to the edges (easy to chip, or smash).

Title: Re: When to prime?
Post by: Blanka on January 22, 2010, 08:17:07 am

Glueing always before priming!
And just 1 prime layer. Final layers are the ones to do more than 1 time.