Hello Carrie and all,
I've been watching this post with interest as it is providing a lot
of different approaches I find interesting. I would like to say
humbly, in my experience, trying to create a matt finish on metal
with mass finishing equipment is not easy. One of the biggest
obstacles is communicating the desired results with customers.
Trying to explain a finish other than a high polish without visual
aids is like trying to explain specific colors verbally, just about
My experience mass finishing metal (for a matt appearance) is that I
get a flat molded looking surface no matter the media, nothing like
hand finishing or abrasive blasting can do. I simply have not found
a media that leaves a surface finish anywhere close to the many
different hand approaches. This is not to say it's not possible, I
just have not found an approach I care for. However, desirable
surface finish is in the eye of the beholder.
I would like to use a vibratory tumbler but I am unsure as to
whether aclosed tumbler can be used (in the book it only discusses
ones with a flow-through system). I have limited water-supply and
cannot have water running continuously through a flow-through.
Flow through system recycles water, all you need for a single step
is 4 gallons and a 5 gallon bucket with pump. I also recommend a
I'm looking at the top model found heRe:
http://dillonprecision.com/ Stock number 20493 - would this work?
My experience with these types of tumblers are that they are
designed to run dry, but I could be wrong as I didn't see any
indication they could run wet or dry, you should ask them before
My next question is about water.... do you still use water in a
closed system or do you dry finish? I plan on trying out the
plastic high-density media first to see if it gives me the finish I
am wanting. Can this be used dry?
Most medias do not cross over, they are either designed to run wet
or dry, not both. A wet media that is run dry will glaze over very
quickly rendering it useless, also creating extreme wear on the
inside of the barrel/bowl. The high density media we carry is
designed to run wet.
Now glass is a different story, I have gotten great results making
sea glass using wet media.
Feel free to e-mail me or call me if you have any questions.
Rio Grande Technical Support
800-545-6566 ex 13903