The largest and best supported Jaguar cars enthusiast site on the Internet!


Serving Enthusiasts since 1993
The Jag-lovers Web

Currently with 3,166 members





Sand blasters

Sand Blasters

New thread.  The discussion on welders was helpful -- I'm trying to make
the transition from gas to MIG.  Could we start a discussion on hobby-scale
blasters and media?  CFM recommendations, tip life, brands, type of feed,
etc. - Jim Warren

Thanks, James -  I made my own media blasting cabinet ten years ago and it
has been indispensable for restoration work.  I use two different types of
media, glass beads and granulated slag (sold under the trade name "Black
Beauty"). Previously I used white silica, but this is no longer available
here owing to health regulations related to silicosis of the lung.  I use
the glass beads at fairly low pressures, say 40 to 60 psi, for delicate
work, like cleaning carburettors and Whitworth nuts and bolts I wish to
salvage.  The black grit is ideal for heavy duty rust removal and I
generally crank up the pressure to 90+ psi. As a general rule on compressor
size, bigger is better.  I have a 2 h.p. twin cylinder DeVilbiss rated at
9.0/7.5 cfm at 40/90 psi and it is more than adequate, although it works
pretty hard to keep up when I'm into heavy duty stuff.  Some 5 h.p. single
stage units do only a little better than this - if you really want
performance, get a two stage 5 h.p. All the hardware you need to build your
own cabinet, as well as plans, are available at moderate cost from a
company called TIP Sandblasting.  Be sure to get the exterior foot operated
air valve because trigger-type air valves fitted directly to the gun do not
stand up in the hostile environment of the blasting cabinet.  Ceramic tips
last longest; I find the medium size delivers the fastest results at the
air volume I have available.  Be sure to install a good water separator - I
use two.  In hardware stores up here in Canada one can buy a tough
shrink-wrap like product used to seal off windows from winter draughts - I
apply this stuff to the inside of the cabinet glass using two-sided tape,
draw it taught with a heat gun, and it protects the glass from pitting for
several hours until the film becomes too frosted to see through and needs
replacing.  I used a shop vac for evacuating the cabinet for a time, found
it too noisy and went to a blower that evacuates the cabinet to the outside
of the garage - makes a hell of a mess in the snow, but it's a lot quieter.
- Nick


If you have any questions or comments send e-mail to: ted@jag-lovers.org
Main Page Back to the Library

 

Please help support the move to the new site, and DONATE what you can.
A big Thank You to those who have donated already!

 


       
       
       
       

Go to our Homepage
Improve your Jag-lovers experience with the Mozilla FireFox Browser!

  View the latest posts from our Forums via an RSS Feed!

Jag-loversTM Ltd / JagWEBTM 1993 - 2017
All rights reserved. Jag-lovers is supported by JagWEBTM
For Terms of Use and General Rules see our Disclaimer
Use of the Jag-lovers logo or trademark name on sites other than Jag-lovers itself in a manner implying endorsement of commercial activities whatsoever is prohibited. Sections of this Web Site may publish members and visitors comments, opinion and photographs/images - Jag-lovers Ltd does not assume or have any responsibility or any liability for members comments or opinions, nor does it claim ownership or copyright of any material that belongs to the original poster including images. The word 'Jaguar' and the leaping cat device, whether used separately or in combination, are registered trademarks and are the property of Jaguar Cars, England. Some images may also be Jaguar Cars. Mirroring or downloading of this site or the publication of material or any extracts therefrom in original or altered form from these pages onto other sites (including reproduction by any other Jaguar enthusiast sites) without express permission violates Jag-lovers Ltd copyright and is prohibited
Go to our Homepage
Your Browser is: CCBot/2.0 (http://commoncrawl.org/faq/), IP Address logged as 54.90.159.192 on 18th Dec 2017 05:15:34