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We know how to find the best solution for your specific needs

Who we are

SIR INDUSTRIALE S.p.A. is an Italian family-owned company that has made a significant impact on the chemical industry for over 60 years. Our extensive range of products, flexibility, and customer-centric philosophy make us the perfect partner for any client. Additionally, we create optimal value for our customers, shareholders, employees, and the community by adhering to safe, ethical, and environmentally friendly practices. Our aim is to find the best solutions for our customers through cooperation and a passion for continuous improvement.

As part of P&R Holding, we belong to one of the largest chemical and pharmaceutical groups in the Italian industry, making us a strong partner driven by innovation and investment. The worldwide turnover of our privately-owned group, active in APIs and the pharmaceutical industry, is approximately 900 million euros.

SIR INDUSTRIALE was founded in 1956 in Macherio, a small town northeast of Milan, as S.I.R (Società Italiana Resine) in the facilities of the former Bakelite Italia by Italian businessman Angelo Rovelli. The company quickly emerged as one of Italy's leading chemical manufacturers. Its early years were marked by competition with another giant of the Italian chemical industry, the government-owned Montedison Group, which acquired S.I.R in 1988, integrating it into the group.

In the early 1990s, political changes in the Italian government led to a financial crisis for the Montedison Group. This situation culminated in the acquisition of S.I.R by P & R Holding (Pizzocaro & Rossi families) in 1996. In 1998, SIR INDUSTRIALE acquired Sprea Chemicals, an epoxy resin manufacturer based in Castelseprio, thereby increasing its production capacity and acquiring the Taffy process know-how for epoxy synthesis.

In the following years, the company focused on strengthening its market presence. In 2013, SIR INDUSTRIALE achieved a significant milestone by exporting more than 60% of its production worldwide, marking its global expansion.

Here, we present a graph and a video that illustrate our history and the origins of SIR’s DNA.

Milestones Sir Industriale

What we do

Resins are our passion. As pioneers in the Italian resin industry, we take pride in our technology and the extensive knowledge we have acquired over the years. Our product portfolio is constantly expanding to meet the evolving demands of the market. With a customer-oriented approach, we can customize all our products to suit your specific needs.

Our main products include various types of resins:

  • EPOSIR® / EPONAC®: Epoxy resins
  • SIRION AK®: Saturated polyester resins in solution
  • SIRALES®: Saturated polyester resins for powder coatings
  • SIRESTER®: Unsaturated polyester resins and vinyl esters
  • PROSID®: Hardeners for powder coatings
  • SIRION®: Additives, hardeners, and specialties
  • SIPRESS® / SIRTAN®: Styrene-maleic anhydride waterborne copolymers

Products

Sirales®

Eposir® & Eponac®

Sirester®

Sirion®

Prosid®

Sirtan® & Sirpress®

Sirales®

Saturated Polyester Resins

We offer a comprehensive range of resins designed for various thermosetting powder coating applications. Under the brand name "SIRALES," we provide an extensive selection of polyesters, from hybrids to outdoor powder coatings, including specialized formulations.

Introduction 01-HAA-SYSTEMS 02-HYBRID-SYSTEMS 03-LOW-GLOSS-SUPER-DURABLE-SYSTEMS 04-LOW-GLOSS-SYSTEMS 05-MASTERBATCH-ADDITIVES 06-SUPER-DURABLE-SYSTEMS 07-TGIC-SYSTEMS 08-URETHANE-SYSTEMS

Eposir® & Eponac®

Epoxy Resins

We offer a diverse range of versatile thermosetting epoxy resins. Under the brands EPOSIR® and EPONAC®, we produce various types of epoxy resins suitable for numerous applications, including anticorrosion coatings, solvent-borne coatings, water-borne coatings, can and coil coatings, powder coatings, civil engineering, adhesives, composite materials, and more. This section also features several cycloaliphatic products under the brand name SIRION® CE.

SIR INDUSTRIALE is recognized as one of the few producers utilizing two distinct manufacturing processes for epoxy resins: EPOSIR® resins are made using the "advancement process," while EPONAC® resins are produced using the "Taffy process."

Introduction 01-ADVANCEMENT-PROCESS 02-BPA-BPF 03-CICLOALIPHATIC-GRADES 04-LIQUID-GRADES-BPA-BASED 05-LIQUID-HARDENERS 06-ONE-PACK-SYSTEM 07-REACTIVE-DILUENTS 08-TAFFY-PROCESS 09-WATERBORNE-GRADES

Sirester®

Unsaturated Polyester Resins and Vinyl Esters

We offer a comprehensive range of unsaturated polyester and vinyl ester resins for a variety of applications. Under the brand name SIRESTER®, SIR Industriale provides a complete selection of versatile, high-quality products tailored for the composites market. Below is a selection of our key grades, organized by application.

Introduction 01-CASTING 02-CONTINUOUS-LAMINATE 03-FILAMENT-WINDING 04-GELCOAT 05-HAND-LAY-UP-SPRAY-UP 06-MOULDING 07-PULLTRUSION

Sirion®

Additives

SIR INDUSTRIALE also offers a family of additives under the brand name of (SIRION®) they cover a wide range of applications.

Introduction 01-ADDITIVES-FOR-POWDER-COATINGS 02-ADDITIVES-FOR-THE-INDUSTRY 03-FLOW-AGENTS 04-PHENOLIC-HARDENERS

Prosid®

(β-hydroxyalkylamides)

We offer an excellent hardener for powder coatings industry; under the well-known brand name PROSID® we provide different solutions for outdoor powder coatings. We guarantee a high quality product FDA-approved.

Introduction 01-PROSID-TDS

Sirtan® & Sirpress®

(Waterborne Styrene/Maleic Copolymers)

We offer waterborne copolymers (styrene-maleic anhydride) under the brand names SIRTAN® and SIRPRESS®. These copolymers are primarily used in the leather industry and for paper sizing.

Introduction 01-SIRTAN 02-SIRPRESS

Our Partners

Governance

Sir Industriale established the Code of Ethics to define clearly and comprehensively the values which inspire the Company in reaching its goals. Compliance with it is essential for the proper operation, reliability, reputation, and image of the Company, which are fundamental elements for the success and for the current and future development of the businesses operated by the Company.

The Organization and Management Model provides an indispensable guide for all our employees and collaborators, and sets out clear codes of conduct, control schemes and measures to prevent crimes and corrupt practices.

Contacts

Headquarter (Macherio)
Via Bellini 35
20846 Macherio (MB)
Phone: +39 039 2072 1
Mail: sir@sirindustriale.com
Plant (Castelseprio)
Via Molino Zacchetto 404
21050 Castelseprio (VA)
Phone: +39 033 18 63 608
Mail: sir@sirindustriale.com