Need help! What is the "stretchy" fabric that is used to mold custom speaker grills?

Mark42

Fleet Admiral
Joined
Oct 8, 2003
Messages
9,334
Need help! What is the "stretchy" fabric that is used to mold custom speaker grills?

I have been watching those custom car programs where they often build custom speaker boxes for the trunk or door side panel. They stretch a fabric (not a fiberglass product) over the wood mold and it has that nice "vacuum formed" look. Then they lay the resin and glass over it to fabricate the custom grill. Has the look kind of like pulling a stocking over your head....:)

I would like to do something similar to make a custom cover between the splashwell and the deck. The splashwell is an angled shape, but the deck is a square shape, and there is a big gas tank in between. So I need to transition between the two nice and smooth.

8502.jpg


Rather than making something from ply and glass covering it, I want to do the stretch fabric, then glass cover to get a nice custom molded shape. And I think that will conserve space, maximizing the available deck space.

What material are they using that stretches in two (or more) directions over the speaker grill forms before the glass/resin is applied?

BTW, the carpeted trim on the splashwell has been replaced with deco-dot vinyl trim, same as is being installed on the deck.
 

Bob_VT

Moderator & Unofficial iBoats Historian
Staff member
Joined
May 19, 2001
Messages
26,097
Re: Need help! What is the "stretchy" fabric that is used to mold custom speaker gri

Re: Need help! What is the "stretchy" fabric that is used to mold custom speaker gri

Mark when I used to race hydroplanes we used cotton fabric and airplane dope to tighten it. The "newer" method is to use a mylar and a heat gun.

I would imagine cotton fabric (similar to a T shirt) would fit your bill and you can resin it.
 

Mark42

Fleet Admiral
Joined
Oct 8, 2003
Messages
9,334
Re: Need help! What is the "stretchy" fabric that is used to mold custom speaker gri

Re: Need help! What is the "stretchy" fabric that is used to mold custom speaker gri


Thanks for the link!

I think that is what I want to do. The fabric store should be able to help me pick out a cotton/poly blend that is stretchy, then apply a little resin and let it harden. After that it will be hard enough to support the weight of wet fiberglass and the layup can be done.
 

chargerboy

Petty Officer 1st Class
Joined
Apr 28, 2010
Messages
362
Re: Need help! What is the "stretchy" fabric that is used to mold custom speaker gri

Re: Need help! What is the "stretchy" fabric that is used to mold custom speaker gri

I've had success using old t-shirt material and resin to make custom speaker boxes in the past.
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: Need help! What is the "stretchy" fabric that is used to mold custom speaker gri

Re: Need help! What is the "stretchy" fabric that is used to mold custom speaker gri

the material used to build speaker boxes is fleece.

yep same as a standard hoodie or sweat shirt
 
Top