my first fiberglass box

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pcana11

Copper - Posts: 116

Joined: June 10, 2009

Location: Georgia, United States

Posted: September 10, 2009 at 7:18 PM / IP Logged

Im building a sealed fiberglass box for a Memphis Power Reference 12. This aint my first box, but my first fiberglass box. What all materials will i need, how many layers of each of the materials as well?

deeg money

Copper - Posts: 107

Joined: October 26, 2008

Location: Florida, United States

Posted: September 11, 2009 at 9:35 AM / IP Logged

you will need mdf wood, fiberglass mat or cloth, fiberglass resin, some type of fleece to stretch over the box and glass, cheap paint brushes, a fiberglass roller is always nice, bondo for smoothing out everything once your finished laying down the glass, some plastic pieces to apply the bondo. Well thats all I can think of right now. But I am pretty sure there is a forum post somewhere about most of this and number of layers needed and all that. Look at the top of the main fiberglass forum page. Dont forget to post pictures or we will kick you OFF the site

That was a joke but for real post pics!

Deeg money

"If you cant be good, be good at it"

pcana11

Copper - Posts: 116

Joined: June 10, 2009

Location: Georgia, United States

Posted: September 12, 2009 at 8:42 AM / IP Logged

Thanks deeg, its not pretty so far being my first fiberglass box. I already had the frame and the fleece stretched over it

deeg money

Copper - Posts: 107

Joined: October 26, 2008

Location: Florida, United States

Posted: September 12, 2009 at 8:51 AM / IP Logged

the biggest thing I have learned when glassing is to take your time getting the wood part of the box perfect. You have to make sure everything is very stable and perfectly semetrical or it will show when your done with the box. Also making sure that you sand any rough edges off the wood is alway very helpful too. Just make sure you take your time and go slow to prevent mistakes! post some pictures of what you got going on now

Deeg money

"If you cant be good, be good at it"

mgd man

Member - Posts: 4

Joined: September 13, 2009

Location: Georgia, United States

Posted: September 13, 2009 at 11:28 AM / IP Logged

three layers of .5 once mat and one layer of cloth should do ya. that will give you strength in all directions of stress when you really get them speakers beating. it might cost a bit more for materials, especially resin, but, it'll be a very solid platform.

Glass'n 20,000sq ft can be interesting, but it's just another day.

mgd man

Member - Posts: 4

Joined: September 13, 2009

Location: Georgia, United States

Posted: September 13, 2009 at 12:06 PM / IP Logged

sorry i meant 1.5 mat, typo

Glass'n 20,000sq ft can be interesting, but it's just another day.

pcana11

Copper - Posts: 116

Joined: June 10, 2009

Location: Georgia, United States

Posted: September 17, 2009 at 7:30 PM / IP Logged

yea, i traded a memphis pr 12 for $60 dollars and half a gallon of fiberglass resin, gonna start hardening tomorrow

pcana11

Copper - Posts: 116

Joined: June 10, 2009

Location: Georgia, United States

Posted: September 17, 2009 at 7:44 PM / IP Logged

my first fiberglass box -- posted image.

deeg money

Copper - Posts: 107

Joined: October 26, 2008

Location: Florida, United States

Posted: September 18, 2009 at 8:57 AM / IP Logged

dude dont glass it yet. You need to pull the sub ring out more. You dont want it to be even with the box!! also you dont need to have the fleece all around the box. If there is mdf then there is not need for it. That will create a ton of extra work. Let me know if you have already dont it. If you havent I will help you through the process so you dont have to go through so much trouble.

Deeg money

"If you cant be good, be good at it"

pcana11

Copper - Posts: 116

Joined: June 10, 2009

Location: Georgia, United States

Posted: September 18, 2009 at 10:32 AM / IP Logged

well the only reason i was doing it around was just to seal it off. I aint really worried about how it looks for my first one. were actually building a frame for my brothers 2 15s and gonna make the rings coming out a pretty good bit and all. i was just testing for this one. I was planning on taking the fleece off from around it before i started too

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