Mileage out of Roloc discs - Page 2 - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Body - Exterior
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #16 (permalink)  
Old 10-22-2013, 08:03 AM
John long's Avatar
Slow but willing learner
 
Last photo:
Join Date: Feb 2012
Location: Chattanooga, Tn
Age: 68
Posts: 2,045
Wiki Edits: 0

Thanks: 941
Thanked 728 Times in 583 Posts
Quote:
Originally Posted by deadbodyman View Post
I believe there's only one size ,John... well..... that one and the thinner cut off wheel
Cool, I will look forward to them getting here. I ordered the 3M 01991 part number. I have been cutting down the Rolocs too for a long time. I have an old pair of snips who have been dedicated for that job. The 6 inch grinding discs also can be cut down very effectively.

I appreciate the replies.

John

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #17 (permalink)  
Old 10-22-2013, 08:10 AM
deadbodyman's Avatar
Registered User
 
Last wiki edit: Stripping paint Last photo:
Join Date: Feb 2009
Location: augusta,ga.
Age: 53
Posts: 6,040
Wiki Edits: 11

Thanks: 25
Thanked 433 Times in 364 Posts
same here.dedicated tools are the way to go.... I have an old sissor type that wont cut anything but they cut the grinding discs perfectly...I also have an old pair of snips that I only use for rusty metal ..even old crappy tools have a use at my shop...
Reply With Quote Quick reply to this message
The Following User Says Thank You to deadbodyman For This Useful Post:
John long (10-22-2013)
  #18 (permalink)  
Old 10-22-2013, 09:44 AM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 55
Posts: 13,007
Wiki Edits: 0

Thanks: 714
Thanked 1,082 Times in 965 Posts
I don't ever use them, but I believe there is a 1/4" cut off disc, we have them at work.

Brian
Reply With Quote Quick reply to this message
The Following User Says Thank You to MARTINSR For This Useful Post:
John long (10-22-2013)
  #19 (permalink)  
Old 10-22-2013, 10:08 AM
shine's Avatar
SPI Thug
 

Last journal entry: some progress
Last photo:
Join Date: Sep 2004
Location: bluff dale texas
Posts: 2,641
Wiki Edits: 0

Thanks: 0
Thanked 169 Times in 139 Posts
as with any abrasive the life is determined mostly by the speed. the higher the speed the more heat. more heat will melt the glue and deteriorate the pad faster. i use low speed on everything including my buffer. da's , board sanders and grinders all work better at lower speed and the sand paper will last much longer .
Reply With Quote Quick reply to this message
The Following User Says Thank You to shine For This Useful Post:
John long (10-22-2013)
  #20 (permalink)  
Old 10-22-2013, 12:02 PM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 55
Posts: 13,007
Wiki Edits: 0

Thanks: 714
Thanked 1,082 Times in 965 Posts
I have to disagree in that the high speed is needed to CUT the weld, where as lower speed "Polishes" the weld and creates more heat than the cutting of the weld.

This where the cheapie tools fail, they can't maintain the speed because they have no torque. So you hit the weld with the disc and it slows down and polishes the weld!

It's like driving around a 69 Camaro with a hot little 350 in it. You THINK it it's fast and it handles well, until one day when someone lets you drive their ZO6 Vette, without that comparison you think your Camaro is fast and handles well.

Brian
Reply With Quote Quick reply to this message
  #21 (permalink)  
Old 10-22-2013, 12:47 PM
shine's Avatar
SPI Thug
 

Last journal entry: some progress
Last photo:
Join Date: Sep 2004
Location: bluff dale texas
Posts: 2,641
Wiki Edits: 0

Thanks: 0
Thanked 169 Times in 139 Posts
we'll have to agree to disagree. 90% of people run air tools 30-40 lbs higher than recommended. especially da sanders. they end up trashing one spot of the paper. i can get twice as much done at low speed with my angle grinder as opposed to running it wide open . heat just hardens steel and melts the glue and releases the abrasive .
Reply With Quote Quick reply to this message
  #22 (permalink)  
Old 10-22-2013, 12:57 PM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 55
Posts: 13,007
Wiki Edits: 0

Thanks: 714
Thanked 1,082 Times in 965 Posts
I'm with you Shine on most sanders, but a grinding disc cutting welds I feel the higher speed with a quality disc cuts it so fast it has no time to heat up.

Brian
Reply With Quote Quick reply to this message
  #23 (permalink)  
Old 10-22-2013, 01:44 PM
put up or shut up
 

Last journal entry: saying goodbye to the beast
Last photo:
Join Date: Apr 2011
Location: Antelope, Ca
Posts: 2,005
Wiki Edits: 0

Thanks: 556
Thanked 217 Times in 196 Posts
Quote:
Originally Posted by shine View Post
we'll have to agree to disagree. 90% of people run air tools 30-40 lbs higher than recommended.
I'd say 100-120 is common. Good point.
Reply With Quote Quick reply to this message
  #24 (permalink)  
Old 10-22-2013, 01:51 PM
put up or shut up
 

Last journal entry: saying goodbye to the beast
Last photo:
Join Date: Apr 2011
Location: Antelope, Ca
Posts: 2,005
Wiki Edits: 0

Thanks: 556
Thanked 217 Times in 196 Posts
I'd like to state that I use a lot of rolocs but I'm also not paying for them. That might change if I were paying for them. If that were the case, I'd probably already have a variable speed 4.5" grinder. I'll state it again, the angle grinders are great but it's simply too fast for the torque. If your surface isn't perfectly flat your high points will turn blue/brittle even if you are moving it around. I sure like how flap discs clean up welds but I'd rather take it a step slower knowing I've eliminated the chance of burning thru a high point or discoloring the metal and making it brittle. Just my opinion. Rolocs are costly but you have a lot more control with them. Shine is right about making the plastic melt on them. Sometimes that alone could be a reason to change out a roloc. I guess what I'm saying is each has it's own advantage and downer and it's just a matter of opinion from there.... it's just that my opinion is better.
Reply With Quote Quick reply to this message
  #25 (permalink)  
Old 10-22-2013, 02:35 PM
shine's Avatar
SPI Thug
 

Last journal entry: some progress
Last photo:
Join Date: Sep 2004
Location: bluff dale texas
Posts: 2,641
Wiki Edits: 0

Thanks: 0
Thanked 169 Times in 139 Posts
i'm old and i'm cheap . my 600 paper becomes 1000 .
Reply With Quote Quick reply to this message
  #26 (permalink)  
Old 10-22-2013, 02:52 PM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 55
Posts: 13,007
Wiki Edits: 0

Thanks: 714
Thanked 1,082 Times in 965 Posts
Quote:
Originally Posted by shine View Post
i'm old and i'm cheap . my 600 paper becomes 1000 .

You should try moving up thru to 3000 it would blow your mind! I did my stainless steel mouldings on the Gran Sport, repaired dent and metal finished them using 600-1000-1200-2000-3000 and they literally glistened like chrome needing no polish!
Reply With Quote Quick reply to this message
  #27 (permalink)  
Old 10-22-2013, 03:08 PM
shine's Avatar
SPI Thug
 

Last journal entry: some progress
Last photo:
Join Date: Sep 2004
Location: bluff dale texas
Posts: 2,641
Wiki Edits: 0

Thanks: 0
Thanked 169 Times in 139 Posts
i mean my worn out 600 gets used somewhere . i have been flamed more than once because i use every grit from 1000 to 3000 . i always said if there was no need for 2500 they would not make it.
Reply With Quote Quick reply to this message
  #28 (permalink)  
Old 10-22-2013, 05:16 PM
John long's Avatar
Slow but willing learner
 
Last photo:
Join Date: Feb 2012
Location: Chattanooga, Tn
Age: 68
Posts: 2,045
Wiki Edits: 0

Thanks: 941
Thanked 728 Times in 583 Posts
Quote:
Originally Posted by MARTINSR View Post
You should try moving up thru to 3000 it would blow your mind! I did my stainless steel mouldings on the Gran Sport, repaired dent and metal finished them using 600-1000-1200-2000-3000 and they literally glistened like chrome needing no polish!
Next time you do that, try color sanding the stainless just as you described but use WD40 as a color sand lubricant instead of water.

John
Reply With Quote Quick reply to this message
  #29 (permalink)  
Old 10-23-2013, 06:26 AM
deadbodyman's Avatar
Registered User
 
Last wiki edit: Stripping paint Last photo:
Join Date: Feb 2009
Location: augusta,ga.
Age: 53
Posts: 6,040
Wiki Edits: 11

Thanks: 25
Thanked 433 Times in 364 Posts
Quote:
Originally Posted by shine View Post
as with any abrasive the life is determined mostly by the speed. the higher the speed the more heat. more heat will melt the glue and deteriorate the pad faster. i use low speed on everything including my buffer. da's , board sanders and grinders all work better at lower speed and the sand paper will last much longer .
X2,especially true with the grinding discs
Reply With Quote Quick reply to this message
  #30 (permalink)  
Old 10-23-2013, 06:58 AM
deadbodyman's Avatar
Registered User
 
Last wiki edit: Stripping paint Last photo:
Join Date: Feb 2009
Location: augusta,ga.
Age: 53
Posts: 6,040
Wiki Edits: 11

Thanks: 25
Thanked 433 Times in 364 Posts
Quote:
Originally Posted by MARTINSR View Post
I'm with you Shine on most sanders, but a grinding disc cutting welds I feel the higher speed with a quality disc cuts it so fast it has no time to heat up.

Brian
actually the1/4" grinding stone cuts twice as fast and lasts about four times longer than any grinding disc with nowhere near as much heat....Try the stone to grind down the welds and you'll never go back to the discs...I grind the welds just a little proud of flush then finish up with a disc till flush...unless we're talking perfect welds then you can skip all the grinding and just hit it quick with the disc...I'm talking about butt welds, but then theres plug welds which usually dont need any grinding at all,two completely different animals.I dont usually touch a plug weld unless its a real booger,if the car is ever in another accident and has to come apart I want the next guy to be able to see the welds so its not a nightmare to get apart...one thing I cant stand is seeing someone grinding and using filler on plug welds to hide a bad welding job...
Reply With Quote Quick reply to this message

Recent Body - Exterior posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
3M Roloc, head porting tools IHRodder Garage - Tools 7 05-04-2010 08:04 PM
Shrinking discs??? suedespade Body - Exterior 16 09-17-2009 01:24 PM
moon discs black rat Hotrodding Basics 2 05-04-2008 08:39 PM
32 chevy discs 55 dude Suspension - Brakes - Steering 1 11-13-2006 05:11 PM
Discs EastCoastSBC Suspension - Brakes - Steering 1 03-17-2006 09:37 AM


All times are GMT -6. The time now is 03:08 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.