Marinette, WisconsinMolding & tooling
Wisconsin, domestic and global tooling network. Single- and multiple-cavity molds, MUD bases, hot runners, in-mold inserts and fabrics, and mold-build project management.
Injection molding in Marinette, Wisconsin
Molded components.
Complete production support.
Injection molding, printing, assembly and fulfillment from our family-owned business.
Molded around your needs.
Injection moldingTooling supportPad & UV printingAssembly & fulfillment
01Capabilities
Molding and
production support.
Plan the molded part and the work that follows it together, from tooling and material selection through finished assemblies and delivery.
Injection molding.
Custom injection molding, insert molding and overmolding support your geometry, molded-in hardware and multi-material requirements.
ABSPC/ABSASANylonPCPPAcetalTPE
See the press rangePrinting & decoration
In-house pad printing and UV printing add graphics and markings to molded parts.
Assembly & secondary operations
Sonic and heat welding, labeling, drilling, tapping, machining and assembly, including purchased components.
Packaging & fulfillment
Inventory management, product storage, packaging, and direct or on-demand shipping to customers or stores, with ShipStation and Amazon shipping support. Customer programs can include Kanban, FIFO and returnable packaging.
Color & foam molding
Color and foam molding options for your injection-molded parts.
Engineering support
Engineering support and cost-saving efforts, including conversion of steel to plastic.
Lean manufacturing
Lean manufacturing, waste reduction, customer Kanban, FIFO and returnable packaging for your program.
Prototype & short-run support
Prototype and short-run additive support through Variety Vault and its partner network.
Material experience
Acetal (Delrin) is a major production material for us.
- Most run
- ABS, PC/ABS, ASA
- Engineering
- Nylons, PC, PS, PP, PPS, acetal (Delrin)
- Elastomers
- TPE, TPU, TPV
- High performance
- PEEK, ULTEM and glass-filled grades
- Also
- PE, HDPE, PETG and injection-moldable UHMW
Resin grade, tooling and application determine suitability, including injection-moldable UHMW and BPA-free options. Virgin resin, regrind and recycled/reprocessed polycarbonate use follow customer requirements. Closed-loop chillers recirculate process cooling water.
Pioneer Plastics' goal is to be a Per- and Polyfluoroalkyl Substances (PFAS) Free Company. This is a company goal, not a product or company certification.
02Printing & decoration
The finishing
detail.
Our in-house pad and UV printing add graphics and markings to molded parts.
03Equipment
A fleet built
around your part.
Injection molding from 90 to 650 tons, with two electric presses and pickers.
17Presses
90 to 650Tons
65%Utilization · room for new programs
Confirmed press fleet
- 90 tons11 presses
- 100 tons1 press
- 250 tons2 presses
- 500 tons2 presses
- 650 tons1 press
Pickers
Our machines are equipped with pickers.
Electric molding
Two of our 17 presses are electric and operate in a positive-pressure white room. Their sizes have not been supplied.
Tooling network
Wisconsin, domestic and global tooling network, including in-mold inserts and fabrics and mold-build project management.
Tooling and mold setup.
Mold-build project management, in-mold inserts and fabrics, and a Wisconsin, domestic and global tooling network support your production needs.
MoldsAny part.
Any part.
Idea to production.
Single and multiple cavities, MUD bases, hot runners and in-mold inserts. We manage the mold build, then mold, assemble and ship your part.
04Parts
Built into
the part.
Molded components show the geometry, hardware and surface details behind a production program.
Insert molding and overmolding.
Insert molding and overmolding support your geometry, molded-in hardware and multi-material requirements.
The capture plan retains all nine subjects. Insert/overmolding, printing, assembly and team frames are omitted until suitable real photographs are available.
New-photo shoot plan
Are these planned new shots right for Pioneer? Add staging changes, permitted subjects or restrictions.
05Quality
Inspection that
supports production.
ISO 9001 certified since 2014, now to ISO 9001:2015. Amtivo certificate 265862, valid through August 2, 2029, subject to annual assessments. In-house first-article inspection with a Micro-Vu vision system, and PPAP.
Our inspection setup.
Our in-house optical inspection supports first-article inspection and production quality checks.
Model specifications and measurement claims remain subject to verification.
06Assembly & shipping
From assembly
to shipment.
Assembly, purchased components, packaging, inventory holding and direct shipping support the work after molding.
07Company
Family owned.
Production focused.
We're a family-owned business in Marinette, Wisconsin. Pete and Kristine Aretz purchased Pioneer Plastics from Chris Stuart in May 2013. Today, our sons Pete Jr., Alex and Ben work alongside us.
Programs of any size, from one part to two million.
Founding year
Was Pioneer founded in 1993 or 1998? The family purchase in 2013 is already recorded.
Our history
From one small machine.
Chris Stuart started the company in his family's garage in Marinette, Wisconsin, with one small machine and a dream of building his own business.
We've been servicing Wisconsin and beyond for over 25 years, serving industrial, aerospace, sports and recreational industries.
Pete has over 35 years in the plastics industry, with a strong manufacturing, quality and engineering background.
We support your cost-saving efforts with engineering support, inventory management, conversion of steel to plastic and added-value assembly.
Family ownedand operated since the 2013 purchase17presses, 90 to 650 tons65%utilization · room for new programs
Information for
your supplier review.
Our capabilities and production support in documents you can share with your team.
A capability overview for your supplier review.
View capability sheet Studio draft · approval pendingMolding, equipment and supporting services in one concise document.
Brand guides
The Pioneer and joint Variety Vault + Pioneer brand sheets, with logos, colours and approved wording.
View brand guidesCapability statement
Studio’s one-page capability statement, with the confirmed fleet, certification and services.
Open capability statementStudio draft · final approval pending · 1-page PDFCompany presentation
Company background, equipment, quality and production services for project discussions.
View company presentationPreliminary review copyEquipment information
Review the press range and discuss machine, tooling and material fit for your parts.
Review equipment
Molded around your needs.
08Contact
Discuss your next
production program.
Bring the drawing, material, expected volume and timing. Review tooling, production and the supporting services your program needs.
(715) 735-3532
3513 Parcek St., Marinette, WI 54143
Alex Aretz
General Manager
alex@pioneerplasticswi.com
Office: (715) 735-3532
Cell: (715) 977-7053
This preview form does not send inquiries. Call Pioneer to discuss a project.
Address and leadership corrected by Emily, October 27, 2026; contact details supplied October20.