Go Back   Home > Forums > >

Multi-Way Conventional loudspeakers with crossovers

The sad realization that MDF is not flat :-(
The sad realization that MDF is not flat :-(
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools
Old 5th December 2013, 11:52 PM   #1
jerseyguy1996 is offline jerseyguy1996  United States
diyAudio Member
 
Join Date: Sep 2013
Location: New Jersey, U.S.A.
Default The sad realization that MDF is not flat :-(

I've been working on my Tony Gee Proteus (aka Wilson Audio Cub clone) and Tony Gee Mezzo Proteus (aka I don't know) 5 speaker surround system and I am to the point of painting. I actually had no idea what a Wilson Audio Cub was but after seeing pictures of them recently, I am determined to do a similar paint scheme for my Proteuses (Proteui?) I am kinda just winging it in terms of painting these. I filled all of the seams and....ahem....dents created from me lugging these things around and knocking them into door jams......with elmers wood filler and sanded everything smooth. This is them all sanded and ready (so I thought) for paint.

Click the image to open in full size.
IMAG0288 by jg1996business, on Flickr

Next I rollered on 3 coats of Kilz Original Oil Based Primer.

Click the image to open in full size.
IMAG0297 by jg1996business, on Flickr

All of the speakers are primed like this.

Click the image to open in full size.
IMAG0298 by jg1996business, on Flickr

Then I went to sand off the dimples in the primer and.......dang......to get down to smooth paint on the entire surface I end up sanding off most of the primer

Click the image to open in full size.
IMAG0295 by jg1996business, on Flickr

I guess, at least this gives me a chance to flatten everything out.
  Reply With Quote
Old 6th December 2013, 05:27 AM   #2
mondogenerator is offline mondogenerator  England
diyAudio Member
 
mondogenerator's Avatar
 
Join Date: Sep 2009
Location: North Warwickshire
Been there, i feel your pain.
__________________
Today I am mostly listening to Tier Four Fears
  Reply With Quote
Old 6th December 2013, 05:54 AM   #3
whgeiger is offline whgeiger  United States
diyAudio Member
 
Join Date: May 2004
Location: Pensacola, Florida
Default Giani

For an automotive grade finish, check this out:
COUNTERTOP PAINT - GianiGranite.com - FAQ
The manufacturer claims it can be directly applied to a primed and sanded MDF surface to provide a finished surface as tough and water resistant as a melamine laminate.

Regards,

WHG
  Reply With Quote
Old 6th December 2013, 12:25 PM   #4
jerseyguy1996 is offline jerseyguy1996  United States
diyAudio Member
 
Join Date: Sep 2013
Location: New Jersey, U.S.A.
Quote:
Originally Posted by mondogenerator View Post
Been there, i feel your pain.
Glad it's not just me.
  Reply With Quote
Old 6th December 2013, 12:29 PM   #5
evanc is offline evanc  United States
diyAudio Member
 
Join Date: Sep 2009
Location: New Jersey. About 1 hour from NYC and 1 min. from the beach
The sad realization that MDF is not flat :-(
When I painted cars we would put on a couple coats of dark grey primer and then light grey so we could see the high spots before we got back to metal.
Evan
__________________
http://www.evancotler.com
  Reply With Quote
Old 6th December 2013, 12:30 PM   #6
jerseyguy1996 is offline jerseyguy1996  United States
diyAudio Member
 
Join Date: Sep 2013
Location: New Jersey, U.S.A.
Quote:
Originally Posted by whgeiger View Post
For an automotive grade finish, check this out:
COUNTERTOP PAINT - GianiGranite.com - FAQ
The manufacturer claims it can be directly applied to a primed and sanded MDF surface to provide a finished surface as tough and water resistant as a melamine laminate.

Regards,

WHG
Interesting stuff, but I wonder if it comes in solid colors. Speaking of automotive grade finishes, I had considered taking these down to the autobody shop at the end of my street to see if they could do them. I eventually decided not to because I want the finished product to be all me.
  Reply With Quote
Old 6th December 2013, 12:33 PM   #7
jerseyguy1996 is offline jerseyguy1996  United States
diyAudio Member
 
Join Date: Sep 2013
Location: New Jersey, U.S.A.
Quote:
Originally Posted by evanc View Post
When I painted cars we would put on a couple coats of dark grey primer and then light grey so we could see the high spots before we got back to metal.
Evan
Did your shop paint non-car objects if people brought them in?
  Reply With Quote
Old 6th December 2013, 12:33 PM   #8
KatieandDad is offline KatieandDad  United Kingdom
diyAudio Member
 
KatieandDad's Avatar
 
Join Date: Nov 2011
Location: UK
I feel for you.

I'm building a pair of Wilmslow Audio Prestige Platinums.

After getting the MDF to an apparently perfect finish I applied primer - I might has well have flattened the MDF with a bulldozer.

In the end I've veneered the MDF but even that looks perfect until you start to apply any kind of finish.
  Reply With Quote
Old 6th December 2013, 12:40 PM   #9
jerseyguy1996 is offline jerseyguy1996  United States
diyAudio Member
 
Join Date: Sep 2013
Location: New Jersey, U.S.A.
Quote:
Originally Posted by KatieandDad View Post
I feel for you.

I'm building a pair of Wilmslow Audio Prestige Platinums.

After getting the MDF to an apparently perfect finish I applied primer - I might has well have flattened the MDF with a bulldozer.

In the end I've veneered the MDF but even that looks perfect until you start to apply any kind of finish.
I'm trying to avoid rushing the painting process even though I really really want to start enjoying these speakers. I'm just going to keep priming and sanding until I have a perfect surface for the top coat.
  Reply With Quote
Old 6th December 2013, 12:54 PM   #10
Sangram is offline Sangram  India
diyAudio Moderator
 
Sangram's Avatar
 
Join Date: Sep 2002
Location: India
The sad realization that MDF is not flat :-(
I always thought I was doing something wrong, needed about six coats of primer before I was able to start sanding.
  Reply With Quote

Reply


The sad realization that MDF is not flat :-(Hide this!Advertise here!
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Another realization of Bob Cordell's THD Analyzer giulianodes Equipment & Tools 213 23rd January 2020 02:30 AM
Flat FR, Flat Power Response, in-phase crossover? RockLeeEV Multi-Way 15 7th February 2012 09:07 PM
Realization system 2.1 franck1234 Full Range 8 8th August 2007 05:17 PM
Switch realization for this idea rtarbell Parts 4 7th March 2007 04:14 PM
OT: Sad story... will make you sad.. don't read it! KBK Everything Else 1 8th February 2004 09:43 PM


New To Site? Need Help?

All times are GMT. The time now is 11:26 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki