What CSL Silicones does

CSL Silicones Inc. is a Guelph, Ontario-based manufacturer founded in 1984 that develops Room Temperature Vulcanising (RTV) silicone materials and engineered coating applications. The company operates six core product lines under the Si-COAT® and CSL® brands: roof coatings (RC Series), high voltage insulator coatings (570 HVIC Series), corrosion maintenance coatings (CM Series), anti-graffiti coatings (AG Series), air barrier systems (AB Series), and sealants, greases, adhesives, and specialty coatings. Its products address asset protection, weatherproofing, electrical insulation, and corrosion prevention in four primary verticals: energy (high voltage transmission), building and construction, highway and bridge infrastructure, and mining.

The business is structured as a wholly-owned subsidiary of PETRONAS Chemicals Group Berhad, acquired through BRB International B.V. in 2019 and now operating within PCG's Specialty Chemicals division alongside BRB and Perstorp Group. CSL sells primarily through a global distributor network spanning 12+ countries across North America, Asia-Pacific, Latin America, the Middle East, Africa, and Europe, supplemented by direct sales inquiries handled via territory-based routing on its bilingual (English/Spanish) website. Pricing is quote-based and not publicly disclosed, with revenue generated through one-time product sales rather than licensing or subscription models. The company maintains certifications including ISO 9001, ISO 14001, ISO 45001, NSF P151, FM Approval, UL Classified, CRRC, Miami-Dade, Florida DBPR, California Title 24, and UL ECOLOGO, supporting specification-driven buying in regulated end markets.

Name

CSL Silicones

Legal name

CSL Silicones Inc.

Website

https://cslsilicones.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

CSL Silicones Inc. is a Guelph, Ontario-based manufacturer (founded 1984) of RTV silicone coatings, sealants, and adhesives serving energy, construction, infrastructure, and mining customers globally through a multi-country distributor network.

Ownership category

akta.pro rank

Product category

Industrial Silicone Coatings & Sealants

NAICS

Paint and Coating Manufacturing (32551)

SIC

Paints, Varnishes, Lacquers, Enamels & Allied Prods (2851)

akta.pro primary industry

Roof Coatings & Elastomeric Coatings (IMADAKAF)

Keywords

• Silicone coatings
• Roof coatings
• High voltage insulator coatings
• Corrosion maintenance coatings
• Silicone sealants

Headquarters

HQ city

Guelph

HQ country

Canada

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Silicone Coatings and Sealants: CSL generates revenue through the sale of proprietary silicone coating, sealant, and adhesive products. Products include roof coatings, high voltage insulator coatings, corrosion maintenance coatings, anti-graffiti coatings, air barrier systems, and industrial sealants. Sales occur through a global distributor network and direct inquiries. Products are sold as finished goods with technical data sheets available for specification.

Pricing tiers

Go-to-market motion3 records

Distribution channels2 records

Marketing channels4 records

Core offering

CSL Silicones develops, manufactures, and sells proprietary Room Temperature Vulcanising (RTV) silicone coatings, sealants, and adhesives sold under the Si-COAT® and CSL® brands. The product range spans roof coatings, high voltage insulator coatings, corrosion maintenance coatings, anti-graffiti coatings, air barrier systems, and industrial sealants and adhesives, distributed globally to construction, energy, infrastructure, and mining customers.

Product overview

CSL Silicones is a technology solutions provider specializing in Room Temperature Vulcanising (RTV) silicone materials, offering six core product lines: Si-COAT® RC™ Series (roof coatings including Si-COAT® 460 RC™, 461 RC™, 462 RC™, and CSL® 463-471 roof sealants); Si-COAT® 570™ HVIC Series (high voltage insulator coatings including 570hs™ and 570n variants); Si-COAT® CM™ Series (corrosion maintenance coatings including 579 CM™, 580 CM™, 581 CM™, and CSL® 979); Si-COAT® AG™ Series (anti-graffiti coatings including 528, 529, 531, and 532 AG™ products); Si-COAT® AB™ Series (air barrier system including CSL® 423, 424, 428, and Si-COAT® 422); and Sealants & Adhesives (including CSL® 160, 302, 316, 335A, 343, 503, and 541). These products serve diverse markets including building and construction, energy sector (high voltage power transmission), highway and bridge infrastructure, and mining. CSL operates as a subsidiary of PETRONAS Chemicals Group Berhad through BRB International B.V.

Differentiator

Problem solved

Functional benefit

Brands

• Si-COAT®: Brand for silicone coatings including RC (Roof Coatings), HVIC (High Voltage Insulator Coatings), CM (Corrosion Maintenance), AG (Anti-Graffiti), and AB (Air Barrier) series
• CSL®

Products and services

• Si-COAT® RC™ Series (Roof Coatings) Silicone roof coatings designed for long-term protection of roofs against UV radiation, rainfall, weathering, ponding water, and temperature fluctuations. The series includes Si-COAT® 460 RC™ (low-solids, IR-reflectant), 461 RC™ (high-solids, one-coat application), 462 RC™ (walkpad with slip resistance), and CSL® 463/464/465 RC™ roof and flashing sealants. Suitable for projects where ponding water rules out other coating technologies. Used by commercial and residential construction buyers and roof applicators.
• Si-COAT® 570™ HVIC Series (High Voltage Insulator Coatings) One-part RTV silicone coatings engineered to provide highly hydrophobic surfaces on high voltage insulators for their entire service life, limiting leakage current and preventing flashovers due to insulator contamination. Includes Si-COAT® 570hs™ HVIC (high-solids, extended service life) and Si-COAT® 570n HVIC™ variants. Optimized with non-reactive, low molecular weight silicone and functional ingredients. Used by utilities, power transmission operators, and grid infrastructure owners.
• Si-COAT® CM™ Series (Corrosion Maintenance Coatings) Silicone coatings designed to withstand harsh climates and service environments for long-term corrosion protection. Naturally hydrophobic, flexible, and UV stable. The series includes Si-COAT® 579 CM™ (corrosion maintenance for above-grade atmospheric retrofit), 580 CM™ (low-VOC, high-protection variant), 581 CM™ (clear coating maintaining substrate visibility), and CSL® 979™. Used by infrastructure owners, mining operators, and industrial maintenance buyers.
• Si-COAT® AG™ Series (Anti-Graffiti Coatings) Silicone coatings designed for long-term protection against graffiti, withstanding indefinite graffiti removal cycles. Naturally hydrophobic, flexible, and breathable. The series includes Si-COAT® 528 AG™ (pigmented low-VOC), 529 AG™ (pigmented), 531 AG™ (clear), and 532 AG™ (clear low-VOC). Used by property owners, transit authorities, and public infrastructure buyers.
• Si-COAT® AB™ Series (Air Barrier System) Fluid-applied air barrier system comprised of single-component RTV silicone products that form a durable barrier to air and water in building wall assemblies while allowing vapor to escape, increasing building material lifespan. Includes Si-COAT® 422 AB™ (tri-functional low-VOC coating), CSL® 423, CSL® 424, and CSL® 428 AB™ (liquid flashing membrane). Used by building envelope contractors and commercial construction buyers.
• Sealants, Greases, Adhesives and Specialty Coatings Comprehensive selection of silicone sealants and adhesives formulated for performance-critical applications, available in self-leveling and non-slump formulations with superior adhesion and substrate compatibility. Silicone greases provide lubricating and anti-friction properties for mechanical equipment. Includes CSL® 160, CSL® 302 (glazing sealant), CSL® 316 (self-leveling concrete joint sealant), CSL® 335A and CSL® 343 (window and door manufacturing sealants), CSL® 503 (high-temperature form-in-place gasket maker), and CSL® 541. Used by window/door manufacturers, glazing contractors, concrete and bridge contractors, and industrial equipment operators.

Quantifiable outcome

• Reduced cooling costs through reflective roof coatings
• +3 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Polyglass USA: Manufacturer of silicone roof coatings and below-grade waterproofing systems serving the North American commercial roofing market. Directly comparable product overlap with CSL's silicone roof coatings and sealants.
• Sika AG: Global specialty chemicals company with a major construction sealants, adhesives and roofing/waterproofing portfolio. Direct overlap with CSL's sealants, roof coatings and air barrier product lines serving building envelope markets.
• Momentive Performance Materials: Specialty silicones producer offering RTV silicone coatings, sealants, adhesives and HVIC coatings for construction, power transmission and industrial markets. Closest direct peer given overlapping RTV technology and end-market focus.
• Tremco Incorporated: Manufacturer of construction sealants, roofing systems and air barriers including silicone-based weatherproofing and fluid-applied membranes. Closely comparable to CSL's roof coatings and air barrier product lines for commercial construction.

Broad incumbents

• Elkem Silicones: Vertically integrated silicone polymer and specialty products manufacturer serving construction, energy, electronics and coatings. Competes with CSL on RTV silicone elastomers and formulated silicone coatings/sealants.
• Wacker Chemie AG: Global silicones and polymers manufacturer that supplies RTV silicone elastomers, sealants and specialty coatings broadly across construction, electronics and energy. Direct upstream chemist and one of the largest competitors to CSL's RTV silicone platform.
• PPG Industries (Silicone Roof Coatings): Diversified coatings major with a silicone roof coatings offering within its broader architectural and industrial coatings portfolio. Competes with CSL's Si-COAT® RC™ Series in commercial roofing restoration.
• Shin-Etsu Chemical Co., Ltd. One of the world's largest silicone producers with deep expertise in silicone elastomers, RTV systems and sealants. Competes with CSL on raw silicone intermediates and finished specialty RTV products globally.
• Dow (DOWSIL silicone brand): Diversified chemical major whose DOWSIL brand supplies RTV silicones, construction sealants and high-voltage insulator coatings. Overlaps with CSL across construction, energy and infrastructure silicone applications.

Regional players

• Mapei S.p.A. Global construction chemicals producer strong in sealants, adhesives and protective coatings for buildings and infrastructure. Comparable to CSL in construction sealants and protective coatings for buildings and bridges, though more Europe-centric in distribution.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/cslsilicones

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

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 CSL Silicones