How To Sandblast Sheet Metal

Mark simpson demonstrates the proper technique to use on sheet metal parts to ensure warp free blasting.

How to sandblast sheet metal.

In order to prevent stretching of the metal you have to ignore other areas. The disk is smoother and will not eat into the metal surface allowing you to give the metal a good sanding until all the material is gone and the surface is nice and clean. Sheet metal warping because of heat peening of sandblast abrasive in my honest opinion sheet metal may warp when sandblasting due to a little bit of both reasons. Sheet metal is sandblasted in order to remove any rust and sharp edges or even a method to enhance adhesion of coatings and adhesives.

Media blasting sheet metal can easily lead to warped and dented metal. Make sure to focus your sandblasting on areas of the sheet metal that needs to be cleaned or the one that are damaged by rust. Sandblasting is an efficient method for removing old paint and rust from a metal object to prepare it for painting. When i experimented sandblasting etched designs into plexi glass plastic acrylic glass with aluminum oxide abrasive i noticed it actually start to melt the plastic.

Sandblasting tools come in a variety of sizes and styles from the handheld model we are using to larger portable tank systems and for engine and small parts preparation they have dedicated booths that will contain the sand or media within the enclosure. Sandblasting equipment for sale. If there are tight spaces where rust ridges or paint remains use a sandpaper sheet manually to reach out into these areas. Florida roofing and sheet metal expo annual convention june 22 25 2011 in orlando.

The same principles would apply if you were stripping rust and paint off an old car or preparing a metal railing for paint.