Why This Matters to Distributors: RPM International’s planned acquisition of Volteco will add specialized below-grade waterproofing products to Tremco Construction Products Group’s building-envelope portfolio. For distributors, the deal could mean access to additional products that RPM can move through Tremco CPG’s existing sales and distribution channels and bundle with its broader construction systems.
RPM International Inc. has agreed to acquire Italian waterproofing supplier Volteco S.p.A., adding specialized technology and products that RPM plans to expand through its Tremco Construction Products Group.
Financial terms were not disclosed. The transaction is expected to close in RPM’s fiscal second quarter of 2027, subject to customary closing conditions.
Ponzano Veneto, Italy-based Volteco generated €28 million ($31.9 million) in sales in calendar 2025. The company specializes in below-grade waterproofing and makes sheet membranes, mortars, resins, flexible liquid products, and materials used for patching, repair, and damp-proofing.
For construction distributors, the significance of the acquisition is less about Volteco’s size than RPM’s ability to put its products into a much larger sales and distribution network.
Tremco Construction Products Group sells building-envelope products through regional businesses and distributors in North America, Europe, Asia-Pacific, India, and Latin America. Its portfolio includes Tremco, Dryvit, Nudura, Flowcrete, Nullifire, Willseal and Vandex.
RPM CEO Frank Sullivan said the company intends to use that existing network to expand the acquired product line.
The transaction gives Tremco CPG another product line that can be sold alongside its existing waterproofing, roofing, sealant, concrete repair, flooring, and other building-envelope products.
That creates a potential channel opportunity for distributors already selling Tremco CPG products. Rather than establishing a stand-alone route to market for Volteco, RPM is positioning the business as part of a broader construction portfolio that can be introduced to existing customers and markets.
Volteco is best known for its Amphibia waterproofing sheet membrane. It also produces bagged powder products for patch and repair applications, flexible liquids, mortars, resins, and damp-proofing materials.
The products are used in commercial construction and infrastructure applications. Volteco products have been used on historic structures in Venice, the Santa Giulia Ice Hockey Arena in Milan and an underground tunnel connecting the Abruzzo Regional Citadel with the L’Aquila bus terminal.
The acquisition also fits RPM’s broader strategy of adding specialized products and technologies that can be expanded through its existing businesses and distribution relationships.
RPM has made about 190 acquisitions over the past 30 years, including more than 60 during the past decade. Its strategy has frequently centered on acquiring specialized businesses and giving them access to RPM’s larger manufacturing, sales, and distribution infrastructure.
The Volteco agreement follows RPM’s acquisition of Germany-based Kalzip GmbH, a manufacturer of aluminum roofing and facade systems that generated about €75 million in calendar 2024 sales. RPM completed that transaction in April and placed Kalzip within Tremco CPG.
The two transactions broaden Tremco CPG’s building-envelope offering in different areas. Kalzip added roofing and facade systems, while Volteco brings additional below-grade waterproofing technology.
For distributors, that expansion could create more opportunities to sell multiple products into the same construction project. It also reflects a broader shift among large building-products manufacturers toward offering integrated systems rather than individual products.
That approach can increase the importance of distributors that can support contractors across several product categories, maintain appropriate local inventory, and provide the technical knowledge required for more complex applications.
RPM generated about $7.9 billion in sales in its latest fiscal year and employs approximately 17,500 people worldwide. The company operates through consumer, construction products and performance coatings businesses and owns brands including Rust-Oleum, DAP, Tremco, Euclid Chemical, Dryvit, Nudura, Carboline and Stonhard.
The Construction Products Group represents a significant part of RPM’s business and gives the company an established route for introducing Volteco products beyond their existing markets.
For distributors, that is the central issue in the acquisition: RPM is not simply adding €28 million ($31.9 million) in annual sales. It is acquiring another specialized technology platform that can be plugged into Tremco CPG’s existing construction channel and sold as part of a broader building envelope portfolio.
Do not miss any content from Distribution Strategy Group. Join our list.
Share this article:
