(208) 250-3273

About MMI Plastics

A long time ago, we realized that one of the most important things for plastic molding companies is to be on time.  We deliver on time so you don’t have to worry about your production deadlines.  The last thing you want to hear from your plastic molding company is that they’re running behind.

We take every possible step to make your project a high priority.

plastic molding companies

Our Mission Is To Give You High Quality Parts at Competitive Pricing

You already know we’re fast.  But did you know we also deliver high quality parts at competetive prices?  We pay attention to details and make sure that the parts we deliver are accurate and precise.  So you get what you bargained for every time.

Custom Plastic Products

Mold Making

From the protoytpe part, we design, quote, build, test and revise the mold.


Parts Machining

Micro Molding’s in house machine shop specializes in tooling to help you with your creation and innovations. 


3D Printing

MMI Plastics uses 3D Printing to create your product before mass production begins.



From simple insert installation to complete complex assemblies, we can make it happen for you.


3D CAD Services

3D modeling, design, drawing, drafting, etc.  Let our designers do it for you.



Highly accurate parts with quick turnaround.  CNC machining with a variety of materials.

Meet The Guy In Charge

You’ll never meet a more down to earth, easy to talk to man.  He’s experienced and knowledgeable, so he can give you straight answers and honest, accurate quotes.

Mel Weyerman, MMI

Mel Weyerman


injection molding machine

We Get Things Done

You need your products made quickly. But let’s face it, a lot of plastic molding companies leave you hanging with late jobs and unfulfilled promises.  We want you to know that here at MMI Plastics, we haven’t been late on a job in many years.  We take pride in delivering parts on time… every time.

We know that’s a high and lofty goal to reach, because we’ve reached it. We had to work hard to get here.  So, we think it’s fine to toot our own horn a bit and spread the word about how prompt and punctual we are with all our production jobs.

Faster Service is Our Mission



10029 Mallard Drive, Nampa, ID 83687