Sanding is the art - 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
  #1 (permalink)  
Old 08-02-2006, 12:32 PM
pepi's Avatar
How’s that hopey-changey thing
 
Last wiki edit: Determining top dead center
Last journal entry: Quicky frame dolly
Last photo:
Join Date: Mar 2005
Location: Georgia ... USA
Posts: 1,835
Wiki Edits: 8

Thanks: 0
Thanked 0 Times in 0 Posts
Sanding is the art

Sanding

The art of body work, what did I say? You read right, Sanding is the key and Sanding is the art. I have long been a mechanic and stayed away from bodywork for the same reasons most others do. I thought it was messy and just plain cantankerous generally speaking. But and there is always a but, I got into a truck project for my better half and started with a rusty cab, bed, and doors that I had to actually build from 3 doors. Sounds like a load of body work and you are correct, so here goes and the point of this rant is to hopefully give other beginners a leg up on the theory and application of Sanding.
Over sanding is a common problem and the filler makers love you for it. The purpose of sanding is 3 fold, first is shaping, second is blending, and third and final is smoothing. If you get this order out of order you are wasting time, paper and filler. Do not get me wrong here I have made all the mistakes mention. I will start with shaping; the best tool I find for shaping is some sort of mechanical device. Da, air file that sort of thing, this will allow the user to get a ruffed in contour, a flat panel also has a contour, it is just flat. Now that a shape has been established you run your hand over that area and find it a little high. At this point I turn to a block and with medium to light pressure I work the area some more. I work on the area until I think it appears and feels flat. I use the word appears because that area is still not quite there. When looking at the area there are the outer edges of the filler application that one can see as a defined line between the body (and sometimes another layer of filler), this line is higher then the under area. This is where the art comes to light; this little demon must be blended. Blending this area is best done by hand and light pressure. My way of dealing with this is to get a small block 3x1 inches or so and go around this define line. Sanding in an outward direction from the filler to the line. Sand until it looks like an ocean wave that washes ashore… WHAT? No defined line, blended. A line that runs onto and into the lower layer as if the filler just runs on until it gets so thinned out it disappears. At this point the center area of the filler will be a little higher then the edges just blended. They way around this is to go back and use a long block or the old school paint stick and smooth out the entire area until the complete area has become one.
Hope this put some light and added food for thought that can be of use to the boots of this hobby. The pros know the word blending cause they do it all the time. That is what bodywork is all about, blending old with new, wrinkled with smooth, whatever you want to call it……………………..rant over

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 08-02-2006, 01:55 PM
Registered User
 
Join Date: Mar 2005
Location: Florida
Posts: 146
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Good post Pepi. Another tip is to feather-edge the filler into the metal instead of the paint.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 08-02-2006, 03:00 PM
Member
 
Last photo:
Join Date: Dec 2004
Location: Issaquah, WA
Posts: 288
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I agree whole heartedly. Having just finishes some body work myself, I've got some gloss black paint on there that is screaming to me that I didn't spend enough time with the correct process for getting straight panels

but I am a first time beginner and as the learning curve works, I will do better next time
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 08-02-2006, 10:40 PM
Member
 
Last photo:
Join Date: Jan 2005
Location:
Posts: 3,707
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Airsanders have their uses but there's other ways you can speed the process. A half round cheesegrater file works fast while the filler is soft and many have used this method for years. Also, you can use a longboard with some 36 grit and hit the filler while it's in the rubbery stage brushing the clogged paper clean with a wire brush as you go. A large area can be roughed in minutes, then let the cure finish and proceed with 80 then 180 or as fine as needed. Guidecoating your filler can also help the eyes see what's going on during the sanding, I use guidecoat often to verify there's no imperfections when sanding with the final grit. Your final grit is determined by what primer will be applied over it.
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
2 new forums: Hot Rod Art and Off-Topic Jon Hotrodders' Lounge 2 09-23-2005 03:50 PM
DA sanding vs hand sanding Kevin45 Body - Exterior 31 07-19-2005 01:37 PM
Color sanding and Buffing questions. Z-Money Pit Body - Exterior 1 05-30-2005 09:41 PM
Color Sanding jcclark Body - Exterior 9 03-15-2005 08:21 PM
Sanding, Dry vs Wet, Air vs Elec Bluepen Body - Exterior 3 05-12-2003 03:45 PM


All times are GMT -6. The time now is 10:34 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.