grit blasting

[chriss]

just wondering if anyone has got or used a grit blasting cabinet for cleaning small items, if so are they worth having

[scoobyjim]

Yes they are fantastic. If budget allows get a pressure fed one not gravity fed. You need a.large compressor aswell. There is no better way of cleaning than blasting.

[chriss]

yes iv'e got good size compressor and 63 ltre pressurised pot though with medium grit did seem to clog but the stuff was everywhere,thats why i was thinking of the cabinet about.9x.6x1.4 is that what you use

[Pavel]

I would suggest that you might find some internet research of some benefit as far as the medium, grit, is concerned. Many professionals have found that the use of glass or plastic beads do a better job on thinish metal panels or just to remove paint rather than rust.

Pavel

[chriss]

i'm sure it is glass beads i used but i think it might be too coarse, when working was good but wasn't constant so might try the fine grade

[scoobyjim]

I made mine from ply. 6ft long 4ft high and 4 ft deep so i can get bonnets and wheel rims in. Lined the inside with 10mm rubber to protect the ply. Them sat that on my pressure pot.

[chriss]

is there any chance of some pictures i would be very interested in them

[scoobyjim]

Ill get some this week fir you.

[chriss]

that would be fantastic, also what do you do about dust extraction

[Dandy Dave]

I have had a Model 970 Detailer for over 20 years and have been very happy with the unit...

http://www.tptools.com/Pro-Shop-34-58-W ... inets.html

Good company and excellent product. I have a 5 HP Cambell Hausfield compresser that rates at 19 CFM @ 100 PSI. Air compressor tank size is not as important as the ability for the compressor its self to keep up. That is where Cubic Feet Per Minute comes into account. Dandy Dave!

[henk]

We use about the same model at school.



Works well but give a lot of dust by the doors. Even with a dust cleaner.
Paint is easy to remove. Rust is a bit harder. Normal grit is cheap. Glass is 4 time expensive, but give a great surface.
Price is about 650 euro's

[chriss]

just looked at compressor all i can see is 3hp motor and 150ltre tank

[scoobyjim]

[chriss]

thanks for the photos that looks a decent bit of kit certainly given me some food for thought

[scoobyjim]

The pressure pot is the expensive bit. The rest is a box with a sloped floor. Seal every joint. Plenty glass and light. If you use proper grit you wont need much extraction but if you use sand you wont be able to see a thing.

[Dandy Dave]

I've use a Low Silica Sand called Black Beauty for years. Cuts rust very well. Older paint also comes off well. Some of this newer Acylic paint is like rubber and is the hardest stuff I have ever seen to blast off. Even paint remover does not touch it. I usually use oven cleaner and high pressure wash parts first before blasting heavy castings that are full of grease and oil. The secret is to get loose stuff and anything the sand will just stick in off first. Dandy Dave!

http://www.blackbeautyabrasives.com/pro ... asives.php