Monroe Rubber & Plastic

What Monroe Rubber & Plastic does

Monroe Rubber & Plastic, Inc. is a US-based specialty manufacturer of die ejection elastomers, founded in 1974 in Monroe, Michigan, where it still operates its headquarters and manufacturing facility. The company engineers and produces microcellular polyurethane and rubber ejection materials exclusively for the steel-rule die-making and die-cutting industry, serving die makers and packaging converters producing folding cartons, corrugated boxes, labels, and gaskets. Its product portfolio includes a graduated range of proprietary elastomer grades — Red Rhino™, Green G'rilla™, KRUSE™, the MR series, 10000/12000/22000 Series, BK-85, Super Strip, and 13500 Cork — supported by add-on technologies such as TopCoat surface coating and automotive-grade Pressure Sensitive Adhesive, plus a custom water-jet cutting service.

The company manufactures its own polyurethane elastomers using a closed-mold casting process developed after 2010, and was the first to engineer ejection materials specifically for die cutting (Green G'rilla, 1995) and to offer water-jet-cut elastomers (1997). It holds ISEGA certification across its complete product line for EU food-contact compliance and has developed industry-standard technical assets such as the Functional Range of Motion Calculator and Compression/Deflection testing methodology. Capital equipment installed over time — including dual water-jet machines, a vacuum-table skiver (2014), and an Atom 3015s flash cutter (2017) — supports custom shapes and same-day shipment.

Monroe Rubber & Plastic became 100% employee-owned through an ESOP completed in 2016 and is governed by a board of directors. It generates revenue through one-time product sales (sheets, strips, blocks, custom profiles) and custom water-jet services, distributed via an extensive network of more than 30 USA distributors and international partners across Canada, Latin America, and South Africa, supplemented by direct factory phone sales and a website sample-request funnel. No public pricing is disclosed, and no revenue figures are released.

Name

Monroe Rubber & Plastic

Legal name

Monroe Rubber & Plastic, Inc.

Website

https://monroerubber.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

11–50 employees

Short description

Monroe Rubber & Plastic is a US specialty manufacturer of proprietary die ejection elastomers — polyurethane and rubber materials used in steel-rule die cutting — serving die makers and packaging converters through a 30-plus distributor network and direct sales.

Ownership category

akta.pro rank

Product category

Industrial Elastomer Manufacturing

NAICS

Rubber Product Manufacturing for Mechanical Use (326291), All Other Rubber Product Manufacturing (326299), Plastics and Rubber Products Manufacturing (326)

SIC

Plastic Materials, Synth Resins & Nonvulcan Elastomers (2821), Fabricated Rubber Products, Nec (3060)

akta.pro primary industry

Molded & Extruded Industrial Rubber Parts (Custom Components) (IMANALAG)

akta.pro secondary industry

Elastomers & Synthetic Rubber Polymer Manufacturing (SBR, BR, NBR, EPDM, Silicone base polymers) (IMANAAAD)

Keywords

• Die ejection elastomers
• Polyurethane cast products
• Steel rule die supplies
• Industrial rubber stripping
• Custom cut elastomers

Headquarters

HQ city

Monroe

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales

Revenue model

1. Die Ejection Elastomer Products: Manufacturing and selling specialty polyurethane and rubber ejection materials for steel rule dies. Products are sold in various forms: sheets, strips, blocks, and custom profiles. Revenue is generated through one-time product sales with no subscription component.
2. Custom Cut Water Jet Services: Custom water jet cutting services for complex die ejection shapes. The company provides detailed mapping and adhesive-backed pre-cut pieces that allow faster die rubbering. Services enable 62.5% increase in press speed compared to conventional rubbering methods.

Go-to-market motion2 records

Distribution channels8 records

Marketing channels6 records

Core offering

Monroe Rubber & Plastic manufactures specialty die ejection elastomers and polyurethane cast products used in steel rule die applications for the die-cutting industry. The company produces branded elastomer strips, sheets, and specialty components (KRUSE, Red Rhino, Green G'rilla, MR series, and various numbered series), and offers custom water jet cutting and TopCoat surface coating services. The products are sold to die makers, packaging manufacturers, and industrial converters through a multi-country distributor network.

Product overview

Monroe Rubber & Plastic is a specialty die ejection material manufacturer offering a comprehensive portfolio of elastomer products engineered exclusively for the die making and die cutting industry. The product lineup includes Red Rhino as the premier rubber for wide application range, Green G'rilla for small area ejection, KRUSE as the newest ultra-soft ejector, and various series (MR50, MR35, MR40, MR75, MR24, MR1100) providing graduated firmness levels from Xtra Soft to Firm. The 10000, 12000, and 22000 Series target recycled corrugated board applications with varying crush prevention capabilities. Specialty products include BK-85 for high-density applications, Super Strip for slot ejection, 13500 Cork for flat crush, and Stripper Foam for stabilization. Add-on offerings include TopCoat surface coating for enhanced durability and Custom Cut water jet services for complex die configurations. The company also provides a Functional Range of Motion Calculator for product selection.

Differentiator

Problem solved

Functional benefit

Products and services

• KRUSE A proprietary die ejection elastomer product line sold to die makers and packaging converters for steel rule die cutting operations.
• Red Rhino A branded elastomer grade designed for die ejection applications in industrial steel rule dies.
• Green G'rilla A branded elastomer grade for steel rule die ejection applications in industrial cutting operations.
• MR Series (MR24, MR35, MR40, MR50, MR75, MR1100) A family of die ejection elastomer grades offered in multiple specifications to suit varied cutting applications and durometer requirements.
• 10000 Series A numbered series of die ejection elastomer products for steel rule die applications.
• 12000 Series A numbered series of die ejection elastomer products for steel rule die applications.
• 22000 Series A numbered series of die ejection elastomer products for steel rule die applications.
• BK-85 A specialized die ejection elastomer grade for industrial cutting dies.
• Super Strip A stripping elastomer product used in steel rule die cutting operations.
• 13500 Cork A cork-based elastomer product for steel rule die applications.
• Stripper Foam A foam-based stripping product used in steel rule die cutting operations.
• Custom Cut (Water Jet) Service Custom water jet cutting service that delivers elastomer components cut to customer-specified dimensions for steel rule die builds and refurbishments.
• TopCoat Surface Coating Service A surface coating service applied to elastomer products to enhance performance characteristics in die cutting applications.

Quantifiable outcome

• 62.5% increase in press speed (from 4,000 to 6,500 hits per hour) when using custom cut rubbering method vs conventional rubbering
• +3 more outcomes

Segments3 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators6 records

Recent moves9 records

Expansion highlights6 records

Others

• Freeman: Largest U.S. distributor carrying Monroe Rubber & Plastic's products. Included as a channel partner/adversarial comparator because it stocks competing die ejection elastomers and could substitute Monroe products at the customer level.
• Ameriken: Multi-location U.S. industrial distributor carrying Monroe Rubber & Plastic's product line. Included as a channel comparitor because it offers competing elastomer products to the same die-making customer base.

Emerging players

• Daemar Inc. Supplier of die components and sealing products for stamping, die-cutting, and industrial markets. Comparable because it serves the same die-making customer base with related consumable and component offerings.
• Pacific States Industries (PSI): Specialty industrial rubber and polyurethane products supplier serving converting and die-cutting markets. Comparable as a competing elastomer parts supplier with overlapping distribution into converting customers.

Direct peers

• Plan Tech Inc. Cast polyurethane parts and sheets manufacturer for industrial machinery, conveyor, and material handling applications. Comparable due to its custom-cast polyurethane elastomer capability targeting similar industrial OEM accounts.
• Argonics: Manufacturer of custom-cast polyurethane elastomers for industrial applications, including urethane sheets and components used in die-cutting and converting. Directly comparable as a specialty polyurethane formulator competing in similar engineered elastomer markets.
• Universal Urethane Products: Specialty polyurethane elastomer manufacturer producing cast urethane sheets, rods, and custom-molded parts for industrial use. Comparable as a small-batch polyurethane specialist serving industrial OEM and converter customers.
• C.U.E., Inc. Custom Urethane Elastomers manufacturer producing molded polyurethane parts and sheets for industrial customers. Comparable because it casts proprietary polyurethane formulations into custom parts analogous to Monroe Rubber & Plastic's die ejection line.
• Rubberlite Inc. Manufacturer of specialty closed-cell rubber and polyurethane foam products sold in sheets and custom-cut forms for industrial applications. Comparable as a small-format elastomer sheet specialist with custom cutting capability.
• Gallagher Corporation: Manufacturer of custom-cast polyurethane elastomers for high-wear industrial applications, including rollers, sheets, and engineered components. Comparable as a long-tenured specialty urethane caster serving similar industrial elastomer needs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/monroerubber
• LinkedInlinkedin.com/company/monroe-rubber-plastic-inc
• Facebookfacebook.com/MonroeRubber

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Monroe Rubber & Plastic