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Frequently Asked Questions
Below is a list of answers to some of NMC's most frequently asked questions. If you need more information about any of NMC's services or capabilities, please contact us right away!

Our FAQs are organized into two basic subject categories; quotation related questions and materials related questions. Click on any question to find the answer.

Quotation Related Questions

How fast can NMC turn around a part and tooling quote?
How many tooling sources does NMC use?
Can NMC provide a prototype mold and prototype samples?
Can NMC assist in making material recommendations?
What information is on the quote sheet?
Does NMC handle existing takeover tooling?
What CAD format is necessary?

Materials Related Questions

What types of material does NMC process?
Will NMC help in selecting a grade of material to fit an application?
Could we run different materials in the same mold?
Does NMC process any clear materials?

How fast can NMC turn around a part and tooling quote? back to top
A part quote can be generated in 1 day and a tool quote in 3 to 5 days. You may request a project quotation online by clicking here.

How many tooling sources does NMC use? back to top
Typically NMC uses from 3 to 6 sources, depending on the type of tool being quoted. Some tool shops are better equipped than others at certain types of tool construction methods.

Can NMC provide a prototype mold and prototype samples? back to top
Yes, NMC can provide both, however, we will sometimes recommend building one cavity ahead in a multi cavity tool. This way, there is not the added expense of having a prototype tool built that is going to sit on a tooling shelf after the production mold is running. In addition, one of the advantages of using the production tool for the early samples is that it truly represents how the tool will run in production, this isn't always possible in a prototype tool.

Can NMC assist in making material recommendations? back to top
We do help in selecting possible materials that would fit the application and have many industry resources to call on for their expertise.

What information is on the quote sheet? back to top
The quote is usually presented with part information such as, part weight, material type and material price. There will then be the piece part section which lists the cost in $ per thousand with 4-5 quantity breaks and possibly two different mold configurations, and a daily production rate. The mold quote section will contain the tooling cost and lead time, and then a comment section.

Does NMC handle existing takeover tooling? back to top
Many companies do not like to deal with takeover tooling due to the many possible problems that can be encountered. NMC however, understands these issues and how to avoid them and make the transaction as seamless as possible. We have handled as many as 75 take over molds in one year.

What CAD format is necessary? back to top
NMC uses Cadkey, with Fastsurf, for an in-house CAD system. We would prefer that CAD data comes in one of the following formats (in order of preference): .PRT (Cadkey), .igs with trimmed surfaces, .igs, .dwg or .dxf (Autocad) .stp, or .stl. STL is required for the Moldflow software. If you have a question if another file type would be acceptable, please contact our Engineering Department. You may also visit our online file transfer center for more information.

What types of material does NMC process? back to top
We process a wide variety of injection molding grade materials such as, nylons, acetals, abs, pp, pe, ppo, polyesters, pvc, pc, and acrylic. NMC also can process many specialty grades such as, Amodel, Ryton, and long fiber materials with up to ½" long glass at up to 60% concentrations.

Will NMC help in selecting a grade of material to fit an application? back to top
Yes, we would consult with various material representatives to determine what the best resin is for a particular application. Factors to be considered include, thermal requirements, mechanical properties, chemical resistance, UL rating, UV stability, cost, and availability.

Could we run different materials in the same mold? back to top
Possibly, it would depend on the material shrinkage, for example, the shrinkage on a styrene material would be about .005" inch per inch and the shrinkage on a unfilled nylon would be about .025" inch per inch. In this case the parts would obviously be quite different in size, but if the materials had similar shrinkage rates, such as polycarbonate, ABS, or styrene, then they could be possibly interchanged if the customer would like to see how different materials would perform.

Does NMC process any clear materials? back to top
Yes, we currently process clear grades of polycarbonate, pvc, styrene, acrylic, polyester and nylon.

 
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phone: 608-635-7366 • fax: 608-635-7371 • service@nonmetallic.com
 
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