Any tips for removing investment residues post-casting?

I have just cast a large torus form which is hollow and has only small openings. The whole piece is full of investment, of course. I've tried using the ultrasonic but that hasn't done much. Normally the ultrasonic, a heated pickle and the sandblaster are what I use, but the sandlbaster won't get into the small openings on the piece and the other two methods have been fruitless.

Views: 70

Replies to This Discussion

What about tumbling in water only? Or hot water and a toothpick? Sounds like a hellish job.

 

That sounds like the one I was thinking of! It might just be that.

Power hose??? Maybe hold underwater and use your air compressor to blast it out?? When you figure it out let us know:))-ann

Actually, that sounds like a good idea. I wonder where I could get a pressure-washer.

I had a sculpture professor who had students take castings to the car wash to blast off investment...maybe this could work if the piece isn't too small overall.

I think it is too small for that! Thanks for the suggestion.

Worst-case scenario you could use an investment remover in an ultrasonic and a syringe. And last resort, each time you bring the investment to temp it loses more and more of its strength.

I am very curious as to what winds up working for you.-Sean

We use a water jet blaster. and if we can't we use warm water soak overnight, then poke it a bit to make sure the silt comes out.

 

Excellent. I will try the soaking as my piece is too small to take to the car wash!

Our jet wash is especially for plaster! It works just like a grit blaster, but with water. If you have no luck with the soaking and you're this way let us know. If not maybe a local casters will let you have a go on theirs!

 

You could try Gypsof, I have used it my self and it really works.  Mix up a solution and let your piece soak in it.  Pehaps you could combine it with the use of the ultrasonic?  Zero D is very friendly, and could answer any questions you may have about its use.

http://zerodproducts.com/Akrovest_Gypsof.html

Fantastic, thanks. I will need to find a UK supplier of this.

RSS

Rule the World!

Crafthaus Online Exhibition

RULE THE WORLD

Friends of Carlotta Gallery, Zuerich, Switzerland

What are the adornments of dictators, despots, and the plain delusional? What do they need in order to let their real personalities shine through? What tools do tyrants have to show that they are in charge? See for yourself!

Image above:

Grandpa Wooley

"LOOK", Brooch
Internet photocopy of Gerard Depardieu and Vladimir Putin,
Plexiglas, fabric, imitation leather, yarn, wood, silver brooch

Latest Activity

Charlotte Barnard liked Angelina Ciulik's discussion The MASSC Jewelry Challenge
1 hour ago
Peter Antor posted photos
2 hours ago
Brigitte Martin liked Angelina Ciulik's discussion The MASSC Jewelry Challenge
2 hours ago
Angelina Ciulik shared their discussion on Twitter
12 hours ago
Angelina Ciulik added a discussion to the group Aficionado Studios - Sporadic Chronicle
Thumbnail

The MASSC Jewelry Challenge

The Metal Arts Society of Southern California invited its membership to enter into a jewelry challenge as an avenue to participate and push themselves. Each of the participants received identical kits with materials which in the end would be bent, hammered, stretched, soldered, riveted and morphed into the finished pieces. They were given a timeline of 6 weeks to complete and return the finished piece. Photos were taken of everybody’s pieces and a luncheon was held for the members to vote on…See More
13 hours ago
Amber O'Harrow added a discussion to the group Retracing my steps: Explorations in Fiber Sculpture at Arrowmont
Thumbnail

Day 3 at Arrowmont

Day 3 was a busy and productive day.  We started with a slide show, which included my, now, favorite work by Pat Hickman.  I can’t remember what it is called, but they are little lizards, that she FOUND dead and encased in gut…superb!Our assignment for today was to think about time:…See More
13 hours ago
Sam Mitchell posted photos
17 hours ago
Amber O'Harrow added 2 discussions to the group Retracing my steps: Explorations in Fiber Sculpture at Arrowmont
yesterday
Casey Sheppard posted a status
"For this ring,I made the metal by melting down scrap, pouring and rolling out the metal. I had a blast making "C is for" http://j.mp/1nNZr4w"
yesterday
Rebecca Skeels commented on Rebecca Skeels's group The Association for Contemporary Jewellery
"SKEELS REBECCA Dear Sir/Madam, I am pleased to inform you that the nineteenth edition of AF – L’Artigiano in Fiera (International Crafts Selling Exhibition) will be held at Fieramilano - Rho Pero from 29th November to 8th December…"
Monday
Brigitte Martin liked Kimberly Jackson's photo
Monday
Brigitte Martin liked Amber O'Harrow's discussion Sunday, June 20th - Day 1
Monday
Margarita Sampson posted photos
Monday
raissa bump posted photos
Monday
The Justified Sinner posted a blog post

Midsummer

As usual, I've relocated to the South Coast for the summer and have been doing very little to do with work. Since my last post, I've had my friend and fellow-jeweller, Madelyn Smoak with us here and that has lead to adventures. We started off in London at Tate Britain to see the…See More
Monday
raissa bump is now friends with Louise Perrone, Kathleen Edwards Hayslett and Kelly Nedderman
Monday

© 2014   Created by Brigitte Martin.

Badges  |  Report an Issue  |  Terms of Service