Sandblasting gun parts
- Thread starter elvis3006
- Start date
If you're planning on doing rifles an old high school locker is hard to beat. They're usually well made and more than big enough. Get a piece of clear plexi for the front and cut the top or base for an air exit vent with a furnace filter to keep the media from flying off.
If you use K-Phos from KG it says to use 120 grit aluminum oxide at 40-60 psi. You need to check the cfm rating on the compressor to know how good it will work.
You need to run in the 5+ cfm range in order to not loose your mind blasting and then waiting for it to recharge. Mine's a 10 gallon and i get by pretty well.
If you use K-Phos from KG it says to use 120 grit aluminum oxide at 40-60 psi. You need to check the cfm rating on the compressor to know how good it will work.
You need to run in the 5+ cfm range in order to not loose your mind blasting and then waiting for it to recharge. Mine's a 10 gallon and i get by pretty well.
- Location
- A little North of Kamlooky
If you can afford lexan instead of plexiglass it will last much longer. That sandblasting is a whirling dervish and will ruin cheap plexiglass in minutes. Sand blasting takes a huge amount of air. Sometimes its just better to pay someone to do that for you.
- Location
- Southern ontario
Don't use aluminium oxide use soda blast it won't leave a gritty finish
I've always used muriatic acid to peel any finish off of steel. Have to be very careful with it (if you don't know what PPE means start there), and rinse with a neutralizing agent like baking soda followed by a degreasing agent like acetone or alcohol.
^^^x2
I have done it with a smaller compressor, but I could only sandblast for a minute or so before having to wait for the tank to fill back up.
- Location
- Southern ontario
Princess auto has 60 gallon compressors on sale all the time you'll use it for other things too I think they run about 500$ still
Compressor
Get a compressor that's at least 120PSI and has lots of CFM, my little princess auto sand blast cabinet requires 5CFM @ 80 PSI. I run a 30 Gallon compressor and have to wait for it to build pressure quite a bit It's rated 7.4 CFM @ 40PSI - 5.7 @ 125PSI. get the 60 Gallon compressor, thats going to be my next purchase
Get a compressor that's at least 120PSI and has lots of CFM, my little princess auto sand blast cabinet requires 5CFM @ 80 PSI. I run a 30 Gallon compressor and have to wait for it to build pressure quite a bit It's rated 7.4 CFM @ 40PSI - 5.7 @ 125PSI. get the 60 Gallon compressor, thats going to be my next purchase
I find the small cabinets awkward to use as dust obscures the piece being worked on. I have been using cheap sand from the local TSC store (black not white) and a Princess Auto 'spot' type blaster. I have used different sized compressors and even though big is better the value for your dollar is not there if you rarely use it. Just point away from face and body parts and let loose onto my driveway. 50+ receivers, numerous trigger groups, small internal parts,oprods and other items and all have turned out great. Safety gear is recommended.
My little compressor will hold 40-50 psi running constantly. With aluminum oxide, it produces a nice matte finish in a benchtop cabinet. I made a port in one side, closed with a x slit rubber sheet so that barrels can be done half and half. Always connect a vacuum cleaner to reduce dust, and have a good light source. Engravings, stampings, etc. are not harmed at all. I prefer to park. right out of the cabinet. A larger compressor would be better; one day I will get one.
