Laying fiberglass directly on plastic?

Home / the12volt's Install Bay / Fiberglass, Fabrication, and Interiors / Laying fiberglass directly on plastic? (

Topic Closed)

Welcome Guest :)

Members

Search

Register

Login

< Prev Topic Next Topic >

sawblade02

Member - Posts: 3

Joined: September 15, 2005

Location: United States

Posted: September 15, 2005 at 2:12 AM / IP Logged

I'm planning molding in a pair of speaker pods I built out of MDF into my truck's door panels and painting the whole thing with 2 step silver paint afterwards. If I lay the fiberglass directly over the plastic, will a crack eventually show in the paint where the fiberglass ends? What are some tips to pull this off smoothly?

-Sawblade

Back to Top

5150azn

Silver - Posts: 584

Joined: June 21, 2004

Location: United States

Posted: September 15, 2005 at 3:17 PM / IP Logged

sawblade02 wrote:

I'm planning molding in a pair of speaker pods I built out of MDF into my truck's door panels and painting the whole thing with 2 step silver paint afterwards. If I lay the fiberglass directly over the plastic, will a crack eventually show in the paint where the fiberglass ends? What are some tips to pull this off smoothly?

-Sawblade

Yes, Your gonna have to rough up your plastic or like something because plastic bends and twists, FG doesn't. My suggestion is just to use your plastic parts as a mold and just remake everything out of FG.

Tell the Snap-On guy I'm not here!

Back to Top

gus1

Gold - Posts: 1,013

Joined: October 15, 2003

Location: Canada

Posted: September 15, 2005 at 5:13 PM / IP Logged

There are primers that can be applied to plastics that make autobody repair material adhere properly. Rough it with 60.... prime with several coats to give a good bonding surface. Use a primer specifically for TPO based plastics (EPDM, PP, E/P)

Gus

Wherever I go, that is where I end up......

Back to Top

sawblade02

Member - Posts: 3

Joined: September 15, 2005

Location: United States

Posted: September 17, 2005 at 4:00 PM / IP Logged

Thanks gus, I'll check into those primers.

Back to Top

jlord16

Silver - Posts: 322

Joined: September 08, 2005

Location: Australia

Posted: September 18, 2005 at 7:30 AM / IP Logged

Id be more worried about the FG not sticking to the plastic and eventually coming off. In Australia they have "Grip Lock" primer thats used for priming plastics and very glossy surfaces, but they shuld have similar products in the US, just go to ur local auto store. Do a few good coats and you shuld be set

Clarion DB36MP

Infinity Kappa Perfect 10"

Respone 800w Mono

ALPINE MRP-F250

*Custom fabrications*

Back to Top

Sorry, you can NOT post a reply.
This topic is closed.

Printable version

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Search the12volt.com

Follow the12volt.com

Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Laying fiberglass directly on plastic?

Sorry, you can NOT post a reply.This topic is closed.

Sorry, you can NOT post a reply.
This topic is closed.