Sand Blasting - Hot Rod Forum : Hotrodders Bulletin Board -- 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
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 01-11-2008, 08:24 AM
Registered User
Join Date: Nov 2007
Location: Virginia
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Sand Blasting

I did a search 1st but no luck. I guess I could of look longer.

Which one is better or do you prefer?
Gravity or pressure tank for sand blasting.


Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 01-11-2008, 08:58 AM
OneMoreTime's Avatar moderator
Last wiki edit: Health and safety in the shop or garage
Last journal entry: Yard Dog pic
Last photo:
Join Date: Jul 2004
Location: Washington State
Age: 72
Posts: 8,828
Wiki Edits: 3

Thanks: 219
Thanked 457 Times in 409 Posts
I like a pressure tank myself..seems to do a much better job..

I have tried most all of it and now do what is known to work..
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 01-11-2008, 11:27 AM
Registered User
Join Date: Nov 2005
Location: NJ
Posts: 84
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
The metal is warped by having the sand beat on the surface causing the surface to expand. The whole idea with sandblasting is to limit the energy of the stuff hitting the surface such that it will remove the bad stuff and not damage the metal.

There are two ways to put too much energy out.

First is with too much pressure. If you have too much pressure every piece of sand will cause damage. I run my pressure blaster at 40PSI.

Second is lower pressure with too much sand. The more sand in the stream the more energy you have to beat the surface until it warps. I turn my pressure blaster sand valve off and just crack it until I see sand flowing in the airstream.

I have never warped a panel with the above settings. I have warped metal on purpose experimenting.

Why you ask this makes a difference in the type of blaster...

A siphon blaster does not generally have a means to regulate the flow of sand. It is possible to warp a panel at 40 lbs because the siphon blaster will allow too much sand in to the stream. It is also not as efficient at using the media.

I hope that clears up the picture.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 01-11-2008, 01:22 PM
Registered User
Last wiki edit: General Motors transmissions Last photo:
Join Date: Mar 2006
Location: near Yellowstone park
Posts: 5,099
Wiki Edits: 27

Thanks: 35
Thanked 464 Times in 417 Posts
wet blasting

I bought a wet blaster fron Northern, did a quick test. we are now at the base of the uinta mountains and below freezing so will have to wait until spring to do serious chassis clean up blasting .my pressure washer will go up to 3500 psi on water only, it will peel paint,
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 01-19-2008, 05:34 AM
71corvette's Avatar
Registered User
Last photo:
Join Date: Aug 2006
Location: Louisisana
Age: 55
Posts: 255
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I also use my pressure blaster at 40 psi and reduce the flow of sand. it works great and I have no warpage or damage to the panels. some people are completely against blasting and will tell you horror stories. it can be done safely and is a much quicker way of removing surface rust and old paint. do not use sand as your media it is to harmful to your health. I use black beauty also called black diamond. it is $6.50 for a 50 pound bag at your local tractor supply store. good luck
Reply With Quote Quick reply to this message

Recent Body - Exterior posts with photos

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


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

All times are GMT -6. The time now is 03:33 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.