Sanding and Painting fiberglass

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chicyan

Member - Posts: 17

Joined: October 13, 2003

Location: Canada

Posted: January 08, 2004 at 7:04 PM / IP Logged

Hi... Heres the deal... I Making molds for all my audio stuff. I'm planning on molding everything together... 4 amps 2 12inch sub, 6 farad cap, extra battery, crossovers, power/volt/watt meter.. My big problem id that i can't seam to get a nice paintable finish.... I layed all my fiberglass sand it to get all the ruff out.. and now i dont know how to get it nice and smooth. I want to paint t the same color of my car.. SO i don't want to see little bumps or nudges throught the paint!! ANy help on finishing fiberglass would help !! Thanks alot!! Oh ya just one more question ... do any of you know were i can buy some sort of product that you spray on the fiberglass finiish and it mimick you original disign/peter that you have in the piece of you car ?? Cause i made a custom guage pod for my own CREATION.. MY OWN DB METER !!! hahahah Bring on the competition !!

Thanks again!!

staudio

Member - Posts: 41

Joined: December 23, 2003

Location: United States

Posted: January 08, 2004 at 11:27 PM / IP Logged

I use bondo to fill in the bumps, mix a little at a time and fill it out, let it dry and re-sand it. Works fine for me.

jakita

Copper - Posts: 56

Joined: December 13, 2003

Location: United States

Posted: January 09, 2004 at 12:02 AM / IP Logged

To get a super smooth finish you need to spray a product called feather fill that you can buy at an auto body supply shop

pureRF

Silver - Posts: 619

Joined: July 22, 2003

Location: United States

Posted: January 10, 2004 at 4:43 PM / IP Logged

just bondo sand bondo sand bondo and sand. Keep doing it till its really smooth. I use 80 100 and 150 grit for my sanding on bondo then when ur ready and its pretty smooth sand it all really good with 150 then wetsand with 330 then like 440 or somthing around there. If you have small dimples that are hard to fill with bondo go get a syringe and fill it with resin with hardener then make a little bump in the dimple with the resin, let it dry, then sand down to be level with the rest of the box around it. When ur all done with that stuff use a high build primer (found at walmart or newhere else, make sure its wetsandable) and spray the box a few times. Then wetsand with a paper around 400 grit.

dream it, build it, fiberglass it

GMC4x4Guy

Copper - Posts: 117

Joined: March 28, 2002

Location: Washington, United States

Posted: January 12, 2004 at 4:32 AM / IP Logged

Is the high build primer at Walmart in an aerosol can?

"Drive it like you stole it"

pureRF

Silver - Posts: 619

Joined: July 22, 2003

Location: United States

Posted: January 13, 2004 at 5:33 PM / IP Logged

yes

dream it, build it, fiberglass it

caraudionut

Member - Posts: 9

Joined: January 15, 2004

Location: United States

Posted: January 16, 2004 at 11:13 PM / IP Logged

the good thing about shooting a coat of primer on it is you will be able to see all the imperfections alot easier. I work for a body shop so materials are easy to come by. The biggest thing you have to have is alot of patience. If you rush it....its going to look like crap.....so take your time. If you sand to much down...you can always build it back up. when you get towards the end, i typically use like 600, 800 or higher. You can also take a razor blade and red putty to fill in any pin holes that you have ......if its going to be painted lt will show every imperfection so it has to be very smooth. once you primer and wet sand you will be able to see things coming together and when you look at the finish...do it in the sunlight of a well lighted area from different angles. Its alot easier to fix things before you paint it and shoot the clear coat.

good luck

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Sanding and Painting fiberglass

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