Fix them scratches, Black plastic 101 - K-Bikes.com - Excellence in Motion
 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old Sep 12th, 2011, 11:00 am Thread Starter
Veteran
 
H96669's Avatar
 
Join Date: Jun 2009
Location: Burton, British Columbia, Canada
Posts: 1,613
Fix them scratches, Black plastic 101

Nothing better to do and....after I dropped hints some were asking. Hi guys....I might as well do it here, I am sure there could be a few candidates around.



Hum....nicks & scratches! That one is just a spare cover, already done the one on the bike.





First...filing with the small fine file, a "Mill Bastard" Nicholson, Made in Canada.




I guess you could sand but too hard to control material removal at the right places, I much prefer the file. First cut across the scratches to remove the material that was pushed up in the incident(s). Keep moving the file lightly over the surface until smooth, small sharp file requires the two finger action:




Now, most if not all the scratches are gone, time to get the "wet" sandpaper out, 800 is pretty agressive on plastic so careful there, just need a quick rub then switch to 1000 and 1500.No need for 2000....last time I did that I had to remove some shine later.




Sanding done, clean well with:



Now should look like this, ugly matte greyish color, but a nice smooth surface:






Bringing the shine/black back.........to be continued.

Benelli 50cc at 14
Yamaha RD 200 at 16
Yamaha RD 350 at 17
Honda CB 750 F at 18
Honda V45 Sabre at 24
BMW K100RS at 27
BMW R100GS at 34
BMW K1200RS at 53
H96669 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old Sep 13th, 2011, 6:40 am
Member
 
crowinthehouse's Avatar
 
Join Date: Jul 2011
Location: Halifax, NS, Canada
Posts: 67
Try Mother's "Back to Black" Works on car plactics well. Not permanent, just gotta touch it up after washing a few times.
crowinthehouse is offline  
post #3 of 7 (permalink) Old Sep 13th, 2011, 6:55 am Thread Starter
Veteran
 
H96669's Avatar
 
Join Date: Jun 2009
Location: Burton, British Columbia, Canada
Posts: 1,613
Quote:
Originally Posted by crowinthehouse
Try Mother's "Back to Black" .
That's....one of the steps! But you are right, not permanent. I am after permanent (Or close). Coming soon.....gotta go to CT first and maybe the "Dollar Store".

Trust me....you may even see me in the reflection of that poolished plastic.

Benelli 50cc at 14
Yamaha RD 200 at 16
Yamaha RD 350 at 17
Honda CB 750 F at 18
Honda V45 Sabre at 24
BMW K100RS at 27
BMW R100GS at 34
BMW K1200RS at 53
H96669 is offline  
Sponsored Links
Advertisement
 
post #4 of 7 (permalink) Old Sep 17th, 2011, 5:32 am
Noob
 
Join Date: Sep 2011
Location: Camden, New Jersey, United states
Posts: 3
It is just excellent work of removing the scratches. But sometime what happens if we remove it ,then again as the vehicle started to get old, then those scratched seem badly.
Rwnauli is offline  
post #5 of 7 (permalink) Old Sep 21st, 2011, 7:31 am
Member
 
crowinthehouse's Avatar
 
Join Date: Jul 2011
Location: Halifax, NS, Canada
Posts: 67
Had a thought about your bags while doing some woodworking: Have you tried fine or extra fine steel wool? Unlike emery paper, it has a very nice polishing quality while also removing very small abrasions. Might give you the shine back. My 2 bits...
crowinthehouse is offline  
post #6 of 7 (permalink) Old Sep 21st, 2011, 8:37 am Thread Starter
Veteran
 
H96669's Avatar
 
Join Date: Jun 2009
Location: Burton, British Columbia, Canada
Posts: 1,613
Quote:
Originally Posted by crowinthehouse
Had a thought about your bags while doing some woodworking: Have you tried fine or extra fine steel wool? Unlike emery paper, it has a very nice polishing quality while also removing very small abrasions. Might give you the shine back. My 2 bits...
Woodworking tools ....they are coming! Got to finish this......then maybe we could have a thread on the improper use of woodworking tools in mechanical applications.Dad shaped and sanded so many of his homebuilt "all metal" airplane parts on grandpa's table saw. That good old Beaver is in my shop.

But....no steel wool for this guy on fine wood finishes or aluminium.

You are right it will work on plastic for small stuff, just like Wet Dry sandpaper and....if you lube either with Back to Black as you work out the scratches then you just shortened the "procedure". But....still missing permanency.

Benelli 50cc at 14
Yamaha RD 200 at 16
Yamaha RD 350 at 17
Honda CB 750 F at 18
Honda V45 Sabre at 24
BMW K100RS at 27
BMW R100GS at 34
BMW K1200RS at 53
H96669 is offline  
post #7 of 7 (permalink) Old Sep 21st, 2011, 9:23 am Thread Starter
Veteran
 
H96669's Avatar
 
Join Date: Jun 2009
Location: Burton, British Columbia, Canada
Posts: 1,613
OK....gouges. I made that one intentionally.....with a rock.That old lid did not have one to practice on.



Slowly work it out with a shaped file, from the center toward the edges, then a little work with the Wet Dry sandpaper lubed with "Back to Black", should come out like this:




Oooops.....missed a little. A little more elbow grease! Now that is better....a couple more minutes of sanding/poolishing, would be all gone. No need to do that on this lid, I'll never use it again.



A little "flame polishing" maybe? It does work but not recommended, too hard to control.



To be continued.....with woodworking tools!

Benelli 50cc at 14
Yamaha RD 200 at 16
Yamaha RD 350 at 17
Honda CB 750 F at 18
Honda V45 Sabre at 24
BMW K100RS at 27
BMW R100GS at 34
BMW K1200RS at 53
H96669 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the K-Bikes.com - Excellence in Motion forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Big problem! Rim cleaner turned my black plastic white DGShaffer K12/1300GT (Next Gen) 12 Mar 21st, 2010 11:48 am
Black Plastic Renew ? joesflashdog K1200RS/GT (Classic) 11 Apr 4th, 2009 8:05 am
Are you ready for Obama? Doru-in-Romania Campfire 91 Nov 3rd, 2008 5:04 am
K1200 R SPORT fairing problem... GSARider K12/1300R/R-Sport 12 Feb 13th, 2008 11:18 am
Exhaust and Rear Side Plastic blackjack K12/1300S 9 Dec 20th, 2007 2:54 am

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome