# Trelleborg Sealing Solutions Signs Deal to Acquire Tri-Mack Plastics Manufacturing

> Trelleborg Sealing Solutions agreed to acquire Tri-Mack Plastics Manufacturing, a Rhode Island aerospace thermoplastics supplier.

- Published: 2026-10-21T17:24:06+00:00
- Section: Mergers & Acquisitions
- Author: News Desk
- URL: https://newsforagent.com/news/2026-10-21/trelleborg-acquires-tri-mack-plastics
- Source: [TradingView](https://www.tradingview.com/news/modular_finance:9c07abd5012b1:0-trelleborg-strengthens-its-position-in-the-aerospace-industry-through-the-acquisition-of-tri-mack/)

## Key takeaways

- Trelleborg Group, through Trelleborg Sealing Solutions, signed an agreement to acquire Tri-Mack Plastics Manufacturing Corp.
- Tri-Mack, founded in 1974, reported sales of approximately SEK 300 million in 2025.
- The transaction is expected to be completed during the first quarter of 2027.

Trelleborg Group, through its business area Trelleborg Sealing Solutions, has signed an agreement to acquire US-based Tri-Mack Plastics Manufacturing Corp. Tri-Mack reported sales of approximately SEK 300 million in 2025. The transaction is expected to be completed during the first quarter of 2027, [TradingView](https://www.tradingview.com/news/modular_finance:9c07abd5012b1:0-trelleborg-strengthens-its-position-in-the-aerospace-industry-through-the-acquisition-of-tri-mack/) reported.

## Trelleborg's Agreement for Tri-Mack Plastics

[Trelleborg Group](https://akta.pro/company-profiles/0009njw/trelleborg-group) is a Sweden-based public engineering company that designs and manufactures engineered polymer solutions for aerospace, automotive, medical, semiconductor, energy, water infrastructure and industrial customers across more than 40 countries. [Tri-Mack Plastics Manufacturing](https://akta.pro/company-profiles/000ikoa/tri-mack-plastics-manufacturing) is a US aerospace supplier founded in 1974 with specialist expertise in high-performance thermoplastics and composite materials.

The acquisition strengthens Trelleborg's position in high-performance thermoplastic solutions for the aerospace industry and expands the Group's capabilities in advanced composite and plastic components for airframes and aircraft engines. Tri-Mack's facility in Bristol, Rhode Island, features a vertically integrated manufacturing operation with in-house toolmaking, and advanced automation and robotics enable precision, consistent high quality and efficient production. In addition to aerospace applications, Tri-Mack manufactures components and solutions for semiconductor equipment and industrial gas turbines.

"The acquisition provides Trelleborg with access to specialist capabilities in advanced thermoplastics and composite materials while further strengthening the Group's value proposition to existing customers. Tri-Mack operates in an attractive growth segment within the aerospace industry, where demand for thermoplastic composite materials is increasing, driven by requirements for lower weight, shorter manufacturing lead times and improved cost efficiency," said Jürgen Bosch, President of Trelleborg Sealing Solutions.

Tri-Mack will become an addition to the aerospace platform that Trelleborg is building through its previous acquisitions of Aero-Plastics and Magee Plastics. Together, the companies strengthen Trelleborg's offering in high-performance thermoplastic solutions for the aerospace industry.

## Trelleborg's Aerospace and Acquisition Record

Trelleborg Group reported 2025 sales of SEK 34,329 million, according to akta.pro [company records](https://akta.pro/company-data), with 17,237 employees as stated on its About Us page. The same records list a June 2026 acquisition of Huntsman Gomet in Italy for EUR 42.5 million, adding EUR 24 million of automotive aftermarket molded rubber and thermoplastic revenues to the Industrial Solutions business area.

## Earlier Trelleborg Acquisitions and Results

Trelleborg reported record second quarter 2026 results on July 16, 2026, with sales of SEK 9,161 million and its highest-ever EBITA margin of 19.2%, representing 7% sales growth and 11% EBITA growth year-over-year, Investing.com reported. Affarsvarlden reported the same quarter's revenue of 9,161 million SEK, up 7.1% year-on-year, with adjusted EBITA of 1,761 million SEK beating FactSet's analyst consensus of 1,734 million SEK.

Trelleborg Medical Solutions appointed Carsten Stehle as business unit president of commercial & operations Europe and Omar Hall as president of commercial Americas, Mpo-mag reported in June 2026.

## Tri-Mack's Closing Timeline

The transaction is expected to be completed during the first quarter of 2027, Trelleborg said.

## Companies in this story

- [Trelleborg Group company profile](https://akta.pro/company-profiles/0009njw/trelleborg-group) · website: https://www.trelleborg.com
- [Tri-Mack Plastics Manufacturing company profile](https://akta.pro/company-profiles/000ikoa/tri-mack-plastics-manufacturing) · website: http://www.trimack.com

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