How many layers?

[cooldudejz 10+ year member]

i am fiberglassing my kickpanels and wanted to know how many layer of fiberglass should i put over the fleece. i have read for subwoofers to do like 7 layers, but i feel that is too many for my application.

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[jujumantb 10+ year member]

depends, I think I used ~3 on mine, maybe only two in some spots. The less big flat spots you have, the less you need to use to avoid flexing.

 

[96civ 10+ year member]

I only used 2 at best for mine... works fine, but I could be losing some performance.

 

[ramos 5,000+ posts]

Depends on how big your kicks are really. I try not to have any flex at all. Most the time it ends up two - four layers of 3 oz. mat. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[blue93corsica 10+ year member]

hmm, didn't even know they made 3 oz chop mat

but you'll be fine with 3 layers of 2 oz chop mat, assuming you lay it down nice and clean with little to no air pockets

 

[nVRuckus 5,000+ posts]

depends on the fleecing material too. trunk liner doesnt need as much mat as tshirt material. on thick liners I only use 1.5oz of chopped mat, on tshirt material I use 6oz of mat.

 

[skeptikal Premium Member]

I usually do 2 layers outside, and 2 layers inside.

 

[ramos 5,000+ posts]

hmm, didn't even know they made 3 oz chop mat
but you'll be fine with 3 layers of 2 oz chop mat, assuming you lay it down nice and clean with little air pockets

It's 3oz woven roving actually. I won an auction on ebay for 5 25yd rolls. Got it , and it turned out to be 5 125yd rolls 6" wide. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[96civ 10+ year member]

You didn't get charged extra, either? I've always wondered, is there a strength difference between using glass cloth and glass matt?

 

[ramos 5,000+ posts]

You didn't get charged extra, either? I've always wondered, is there a strength difference between using glass cloth and glass matt?

No, I thought I was getting ***** on Shipping. It was like $49.95 for shipping. I was cussing a blue streak. Then when this behemoth box showed up at the doorstep. I was quite pleased.

Depends on weight, and type . Cloth of the same weight is usually stronger with the close, tight weave pattern. Cloth conforms a lot tighter to curves and weird shapes. But usually I use heavier mat , and a lighter cloth is used for a finish layer //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[RFmustang 10+ year member]

for mat/cloth go on eBay and search for fan8, he has amazing deals

it cost me only $15 for a butt-load of biaxal cloth mat

he has a huge assortment of types,weights and amounts and its all sooo cheap