Baking Soda Blasting

[Carel]

Doing a lot of baking soda blasting with DIY projects. While doing some bakkie liner spray work yesterday I started to wonder if a Bakkie Liner/ Under carriage spray gun will not work better for soda blasting as the method as discussed previously on the forum. The bakkie liner spray gun has a large throat and the bottle that screw to the gun makes it easy to move around and give the baking soda shake regulary.

I have an expensive underliner spray gun, maybe buy a cheapie spray gun and try it

[Duck Rogers]

Suction feed and gravity feed also works but not as effective as a pressurized pressure pot. Too many turns, kinks and restrictions in the flowline. I know....I've tried it.
The best results are via a pressure pot and a proper tungsten carbide nozzle of the correct size.
I'd be interested in your results with the bakkie liner spraygun but I think you're gonna be disappointed......unless of course you're just using it at home for small DIY jobs where time and efficiency doesn't matter

[Carel]

Has bought a made in china under body spraygun today and will try it over the weekend. Only use it for stripping grime and grease from metal and on a lesser scale to strip paint - very small areas (it works and is neater than sanding with paper) . Only DIY (re-building Land Cruisers, restoring old stuff, etc.)

A friend that has a spray painting thinks it will work if one can get the throat and nozzle sizes right, but again only for small jobs