View Full Version : how many layers of glass?

03-02-2010, 02:38 AM
gonna be starting my first glassed sub enclosure soon, and i need to figure out how much mat to buy.

How many layers of glass mat should i do? its for a 15, on 1000rms.

I bought a sq yd of mat from the autobody shop here, but thats ALL they had (wtf?)

03-02-2010, 02:40 AM
i usually just over buy on the matt. i do 3-5 layers and wont put something in a car until ive stood on it and it dosent move at all.

03-02-2010, 02:54 AM
know where to buy bulk glass mat?

the largest quantity i can get locally is 1sq yard, and i bought the only package of mat they had.......

03-02-2010, 02:58 AM
do you not have any hardware stores? or hobby stores?

03-02-2010, 03:00 AM
auto body places, like napa has fiberglass, and kits and ect

03-02-2010, 03:00 AM
walmart sell mat, the one by me sells 4oz mat but you may only find 1.5 or 2 oz mat. if you are having trouble finding mat, try a paint supply store and get kitty hair.

03-02-2010, 04:30 AM
the mat i bought was from an autobody store, Northwest Auto and Paint.

Besides, i found it MUCH cheaper online, so i think im just gonna ebay some. Im busy the next two weekends anyways

03-02-2010, 04:33 AM
oh, and as far as other products go, i got polyrester resin, kitty hair, and some finishing filler that came in a big ol' tube that the guy at the auto body place reccomended.

resin was $60 for a gallon, kitty hair $17 for a quart, and the finishing filler $17 for a quart :crap:

Bumpin' Goalie
03-02-2010, 05:04 AM
Make sure you work in a well ventilated area. Or even get a respirator. The fumes will get in your longs and harden. It can hurt and i'm sure is bad for you. Plus you'll get a wicked cough.

And yeah, materials add up on you. But it's better than paying 100's-1000's at a shop lol.

To the original question: I would guesstimate ~3-4. Standing on it is a pretty good way to find out. Just don't crack it by trying prematurely.

03-02-2010, 07:32 AM
tappplastics.com (http://www.tapplastics.com)


03-02-2010, 11:09 PM
tappplastics.com (http://www.tapplastics.com)


hrrmmmm, they'll be getting an acrylic sheet purchase from me in the near future.

although i did just pick up 12 sq yards of 1.5oz mat on ebay for $33 shipped :D

03-03-2010, 12:10 PM
dont waste your time just order from here
Fiberglass , Epoxy , Composites, Carbon Fiber - U.S. Composites, Inc. (http://www.uscomposites.com/)