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Zero-shrink molds life span


#1

In addition to my previouse post, I would like to add the question:
Is it true that zero-shrink molds are somehow “less resistant”, or
that you can use them for less wax injection cycles than regular
rubber molds?

Thanks again
Jonathan


#2

Jonathon, keep in mind that all silicones including RTVs will not
last as long as natural (organic) rubber. This is not a concern for
jewelers who do not do huge runs.

The storage life of finished silicone molds is essentially forever,
which suits most jewelers. In high production situations they will
wear out a good deal sooner than natural rubber.

Just the same, it is often a good idea to take advantage of the
special attributes of silicones, such as ease of release, and in
cases such as with Akron 4X ZeroShrink, where detail replication is
exceptional. Many manufacturers will plan to make more molds through
a given run. Over a long run, the cost of making a few replacement
molds does not impact total cost very significantly and is easily
offset by labor savings in process.

Some manufacturers report as high as double speed in wax production
with silicone molds.

Regards,

Bill Mull
Zero-D Products, Inc.
precision engineered materials solutions
www.zerodproducts.com


#3

I’ve said it here before, and I’ll say it again, I love Zero-D’s
silicone rubber!

Elaine


#4

Hi Elaine,

Which of the Zero-D mold materials do you use and why? Checking their
website, all their materials require heat, right? Why not use a
product that only requires mixing/combining to cure, rather than
adding that extra step? What am I missing?

Linda


#5
Which of the Zero-D mold materials do you use and why? Checking
their website, all their materials require heat, right? Why not use
a product that only requires mixing/combining to cure, rather than
adding that extra step? What am I missing? 

They also sell an RTV.

Vulcanized molds last longer than RTV.

My favorite is the 4X Gold for platinum, it is super slick, it’s
amazing.

Elaine
http://www.CreativeTextureTools.com
Hard to Find Tools for Metal Clay