Fordmods Logo

Stripping Paint off Plastic Bumpers 

 

Page 1 of 1 [ 7 posts ] 

 
 Post subject: Stripping Paint off Plastic Bumpers
Posted: Mon Jan 30, 2006 3:34 pm 
Tyre Shredder
Offline
User avatar

Posts: 361

Joined: 16th Nov 2004

Power: 120 rwkw

Location: Christchurch
New Zealand

I lent my car to a mate who managed to snag the front bumper of my EF on a curb and snap it in half while backing out of a drive way.

I've been unable to source a 2nd hand fairmont bumper in NZ and my mate ain't willing to pay for a brand new one. So the bumper skin is in getting plastic welded atm.

The the bumper has been painted 3 or 4 times before and the old paint is flaking and there are lots of fractures/cracks in the exsisting paint so I really need to strip all the paint off the bumper before it is resprayed.

Being a Fairmont bar I need to strip the inserts for the brake ducts, air dam and tickford lip spoiler as well.

What is the best of going about this - can they be sand blasted or can I get a chemical stripper that won't stuff the plastic?
Top
 Profile  
 
 
Posted: Mon Jan 30, 2006 4:02 pm 
Getting Side Ways
Offline
User avatar

Age: 60

Posts: 4102

Joined: 18th Nov 2004

Gallery: 10 images

Ride: PX2 Ranger 4x4 XLT Dual CAB

Location: Carrum Downs
VIC, Australia

Use a sander. I wounldn't be using chemicals, & a sand blaster will be too agressive IMO.

 

_________________

Image
She's meanness put to music and the b**ch is born to run!
Like the sign says, "speed's just a question of money. How fast can you go?"

Top
 Profile  
 
 
Posted: Mon Jan 30, 2006 6:44 pm 
Parts Gopher
Offline

Age: 36

Posts: 91

Joined: 13th Oct 2005

Location: melb
VIC, Australia

just sand down the fractures/cracks in the exsisting paint to remove them , then just giv the rest of the bumper a sand to remove the shine off it , then it shud be ready to be painted .
Top
 Profile  
 
 
Posted: Mon Jan 30, 2006 7:04 pm 
Stock as a Rock
Offline

Age: 42

Posts: 116

Joined: 5th Jan 2005

Ride: EF XR8

Location: Leeton
NSW, Australia

A very "HIGH PRESSURE" pressure washer will work wonders on cracked paint, you can also get a special paint stripper for bumper bars that is in an aerosol can, we have used it a couple of times with mixed results.
Top
 Profile  
 
 
Posted: Mon Jan 30, 2006 11:45 pm 
Technical Contributor
Offline
User avatar

Posts: 823

Joined: 6th Nov 2004

Gallery: 9 images

Ride: BF Falcon SR

Location: Perth
WA, Australia

Sand paper, Sanding block and alot of time does the trick.

 

_________________

Proud owner of one of very few BF SR manual (June 06 build) :)

Nothing really says thankyou like a dollar in the waistband

[BLEMIN]

http://www.cardomain.com/ride/782173

Top
 Profile  
 
 
Posted: Tue Jan 31, 2006 10:34 pm 
Parts Gopher
Offline

Age: 36

Posts: 91

Joined: 13th Oct 2005

Location: melb
VIC, Australia

yea tru that , takes a fair bit of time sanding them down , i found out recently. i just started a spray painting apprenticeship and thats all i been doin , sanding down bumpers , panels etc. Aslong as ya take ya time and prepare em well , then ya get good results[/quote]
Top
 Profile  
 
 
Posted: Wed Feb 01, 2006 6:43 am 
Tyre Shredder
Offline
User avatar

Posts: 361

Joined: 16th Nov 2004

Power: 120 rwkw

Location: Christchurch
New Zealand

I used the paint stripper in the aerosol can on all the small bits ie inserts for brake ducts, stripe/moulding and bar that goes in the main air intake.

The bar that goes in the main air intake is PVC i think and it really didn't like the paint stripper. The surface bubbled, pitted and went real soft. It harden up after a wee while and with bit of filler it will be ok.

The bumper skin and lip spoiler I'll hit with an orbital sander and some 80 grit paper - that seems to cut through all the paint ok - but its still going to take few hours.

The source of the problem has been found to - the panel beater that painted the bumper last used a yellow spray putty thats quite thick. It only takes a small impact or flex of the bumper and the paint will fracture/crack - thats why i have to take all the paint off before it can be respayed.

With a bit of luck I have it back on the car by the weekend.
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 7 posts ] 

Who is online

Users browsing this forum: No registered users and 24 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Fri Mar 29, 2024 11:05 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names