Shot blasting tips

  1. NickMc Member

    Messages:
    22
    Location:
    Northern Ireland
    Hello Ladies and Gentleman,

    I’ve bought a smaller blast pot from Blastclean in Wigan and I have a bigger 11 HP 200L Petrol driven compressor putting out 26 CFM (that’s free air delivery). I’m forever doing parts and pieces in my restoration business so thought this was the way forward.

    Should I stick to a 3mm nozzle?

    1/2” hose from the compressor to the pot?

    What media should I be looking at? Probably J-blast supafine from what I’ve read on here. It’s available locally but only in pallet load of 25kg bags.

    There’s also a local place is advertising crushed glass in different grades in bulk bags delivered at £90 a ton?

    I will mostly be doing rusty/painted steel for repair or galvanising.


    Many thanks for the help,

    Nick
     
  2. brightspark

    brightspark Member

    Messages:
    27,632
    Location:
    yarm
    a 28cfm compressor will run the 3mm jet no problems . I run one . j blast superfine should be ideal . crushed glass is looking popular if its the same price or cheaper, I use 15mm bore pipe so there is no restriction or loss of cfm. buy a small amount 1st and then choose which type
    [
     
    NickMc likes this.
  3. jordhandson Member

    Messages:
    687
    Location:
    Dorset
    Here's my little blasting tip.
    In my cabinet I always keep a few bits sat on the shelf that I am not in a rush for, that way when I am doing the bread and butter stuff, my bits sat on the shelf get slowly done, or almost done for free. I do turn them occasionally. You'd be surprised how much the media bounces around inside.
     
    NickMc, Bullet2012 and brightspark like this.
  4. NickMc Member

    Messages:
    22
    Location:
    Northern Ireland
    Thanks,

    can you reuse the J-blast or is it one time use?
     
  5. brightspark

    brightspark Member

    Messages:
    27,632
    Location:
    yarm
    it can be used twice if it is fine sieved then course sieved to get the larger crap out of it .after that its just dust
     
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