Thanks Thanks:  0
Likes Likes:  0
Needs Pictures Needs Pictures:  0
Picture(s) thanks Picture(s) thanks:  0
Results 1 to 5 of 5
  1. #1
    Join Date
    Apr 2005
    Location
    Melbourne Outer East right next to mount dande
    Age
    70
    Posts
    1,826

    Default Shellac flow issues in spraygun

    Used shellac a bit in spray guns but not consistently until fairly recently. I'm using shellac as seal coats on small jobs [guitar bodies] and finding it is not flowing well even with the fluid adjuster almost wide open. Tip is 1.5 in a star gravity fed mini. it seems to start off blowing a good amount of finish but by the end of a pass it is struggling to pick up much finish. the shellac consistency is roughly equivalent to milk:

    Bigger tip?

    More metho in the shellac?
    ray c
    dunno what's more fun, buyin' the tools or usin' em'

  2. # ADS
    Google Adsense Advertisement
    Join Date
    Always
    Location
    Advertising world
    Age
    2010
    Posts
    Many





     
  3. #2
    Join Date
    Aug 2018
    Location
    Portland Vic
    Age
    58
    Posts
    53

    Default

    Do you strain the shellac as you put it into your gun?, doesn’t take much to slow/ stop the flow

  4. #3
    Join Date
    Apr 2005
    Location
    Melbourne Outer East right next to mount dande
    Age
    70
    Posts
    1,826

    Default

    No I haven't - I have a couple of nice screens 100 and 200 mesh. Unsure how the plastic holding the mesh will hold up to metho wash out. Lacquer thinners makes sticky I found out :[ Used to use stockings which aren't as available round here as much as they used to be -
    ray c
    dunno what's more fun, buyin' the tools or usin' em'

  5. #4
    Join Date
    Aug 2018
    Location
    Portland Vic
    Age
    58
    Posts
    53

    Default

    I use stockings most of the time, time a knot and cut off what I need , can get 4/5 pieces out of one leg

  6. #5
    Join Date
    Oct 2010
    Location
    Drouin Vic.
    Posts
    116

    Default

    Whilst shellac has a lot of uses in DIY furniture/restoration I have not seen it used much for spray application. Some years ago I did use shellac sealers followed by brush applied Cabothane type topcoats. Today I have just been spraying a lot of sealer but rather than Shellac I have been using an industrial precatalised sanding sealer Mirocat PC 3242 which is a lot easier to use. It dries faster than shellac and because it contains some zinc stearate it sands very easy when dry in 10-15min. You can also add spirit dyes to adjust the colour if needed. I also have seen these coatings used very successfully on guitars in both factory and craft production.
    For both sanding sealers and topcoats I use HVLP spray guns with a top gravity feed container that in my case work well at low PSI (35-40) using a 1.7 tip. I also fit a small inline strainer (plastic) that comes with these guns and sits in the bottom of the material cup. You can also buy small cone shaped paper filters with plastic mesh built into the bottom section from about 50 cents each from most industrial paint suppliers.

    Cheers,
    Paintman

Similar Threads

  1. Airless Spraygun Or Compressor And Spraygun
    By Carby in forum SPRAY FINISHES, AIR BRUSHING & DECORATIVE FINISHES
    Replies: 10
    Last Post: 20th Apr 2018, 11:51 PM
  2. Concrete Suspended floor issues [?] issues exposed after water entry during reno.
    By Reno RSS Feed in forum STRUCTURAL RENOVATION, ROOFING, DEMOLITION, etc
    Replies: 0
    Last Post: 1st Jul 2012, 01:40 PM
  3. Cleaning spraygun
    By echnidna in forum FINISHING
    Replies: 4
    Last Post: 19th Dec 2005, 11:41 PM
  4. Spraygun and how to use it
    By old_picker in forum FINISHING
    Replies: 4
    Last Post: 21st Oct 2005, 11:08 PM
  5. Spraygun
    By gdf26562 in forum FINISHING
    Replies: 4
    Last Post: 11th Nov 2003, 10:16 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •