Rawell Environmental

What Rawell Environmental does

Rawell Environmental Limited is a UK-based specialty materials manufacturer founded in 1977 by Bryan Flynn, headquartered and operating its manufacturing facility in Hoylake, Merseyside. The company manufactures Rawmat HDB, a prehydrated natural sodium bentonite waterproofing membrane produced via a patented vacuum extrusion process developed in the early 1990s, alongside Rawseal bentonite waterstops. Rawell also distributes the STOPAQ visco-elastic corrosion prevention and swellable sealant product lines under exclusive rights for England, Wales, and Ireland.

The company serves six primary sectors: petrochemical lining (secondary containment for tank farms, refineries, and terminals), environmental protection (landfills, contaminated ground, minewater), landscaping (ponds, canals, reservoirs), structural waterproofing (basements, below-ground structures, potable water reservoirs), and STOPAQ corrosion prevention and sealant applications for oil and gas infrastructure. End customers include major enterprises such as ExxonMobil, BP, Shell, Manchester Airport, Microsoft, Standard Life, Scottish Widows, and MTRC, with project work delivered across more than 35 countries.

Revenue is generated primarily through one-time direct sales of manufactured membranes and distributed STOPAQ products, complemented by a UK merchant network for contractor reach and event-led demand generation at industry conferences (StocExpo, TSA Conference, Firefighting Summit). The business is privately held under Rawell Group Holdings Ltd with no external venture or private equity investment disclosed. Competitive positioning rests on proprietary manufacturing IP, a deep regulatory certification stack (BBA, CE, ISO 9001/14001/45001, Florida DEP, KIWA, NSF/ANSI 61), and a claimed 100+ year in-service life expectancy that anchors specification-driven adoption in long-life infrastructure projects.

Name

Rawell Environmental

Legal name

Rawell Environmental Limited

Website

https://rawell.co.uk

Company type

Private

Founded year

1977

Operating status

Operating

Headcount range

11–50 employees

Short description

Rawell Environmental is a UK-based manufacturer of prehydrated bentonite waterproofing membranes (Rawmat HDB) and exclusive UK/Ireland distributor of STOPAQ corrosion prevention products, serving petrochemical, environmental, structural waterproofing, and infrastructure customers across more than 35 countries.

Ownership category

akta.pro rank

Product category

Waterproofing Membranes and Corrosion Prevention Products

NAICS

Gasket, Packing, and Sealing Device Manufacturing (339991)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050)

akta.pro primary industry

Emergency Waste Packaging, Transportation & Disposal (Post-incident) (EUAIAMAH)

akta.pro secondary industries

Chemical Tank Cleaning, Decontamination & Turnaround Waste Services (BPALAHAH), Hazardous Waste Disposal (Secure Landfills, Deep-Well Injection) (EUAIAFAC)

Keywords

• Bentonite waterproofing membranes
• Corrosion prevention products
• Structural waterproofing systems
• Visco-elastic pipeline coatings
• Geosynthetic clay liners

Headquarters

HQ city

Hoylake

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Bentonite Waterproofing Products: Sale of proprietary Rawmat HDB membranes and Rawseal waterstops for structural waterproofing, environmental protection, petrochemical lining, and landscaping applications. Products are manufactured in Hoylake and supplied globally.
2. STOPAQ Corrosion Prevention Systems: Distribution of Stopaq visco-elastic corrosion prevention and sealant products including Wrappingband, Outerwrap, Aquastop, and related ancillaries. Rawell acts as distributor for England, Wales, and Ireland.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Rawell Environmental manufactures the Rawmat HDB bentonite-based waterproofing membrane using a patented vacuum extrusion process, designed for structural waterproofing and environmental containment applications. The company also serves as the UK distributor for STOPAQ visco-elastic corrosion prevention and sealing products used in petrochemical, pipeline, and infrastructure protection.

Product overview

Rawell Environmental is a manufacturer of bentonite-based waterproofing materials serving six market sectors: Petrochemical Lining, Environmental Protection, Landscaping, Structural Waterproofing, STOPAQ Corrosion Prevention, and STOPAQ Sealant. The core product portfolio centers on the proprietary RAWMAT® HDB prehydrated natural sodium bentonite membrane and RAWSEAL® waterstop product lines, both manufactured via a patented vacuum extrusion process. The company also distributes the STOPAQ visco-elastic corrosion prevention and swellable sealant systems. These products work together as integrated systems: RAWMAT® HDB membranes provide the primary waterproofing barrier while RAWSEAL® products (including TR35 angle fillets) seal joints and penetrations, and STOPAQ systems address corrosion protection for pipelines and leak sealing for duct penetrations. The company is the only prehydrated Geosynthetic Clay Liner (GCL) manufacturer in Britain.

Differentiator

Problem solved

Functional benefit

Brands

• RAWMAT® HDB: Prehydrated natural sodium bentonite waterproofing membrane used for control and containment of liquids in the ground. Used in structural waterproofing, petrochemical lining, environmental protection, and landscaping applications.
• RAWSEAL®
• STOPAQ

Products and services

• Rawmat HDB Waterproofing Membrane High-density bentonite-based waterproofing membrane manufactured via patented vacuum extrusion of sodium-activated bentonite; self-seals on hydration and is used for below-ground structural waterproofing in construction, environmental containment, and landscaping applications.
• Rawmat TR35 Waterproofing Membrane Bentonite-based waterproofing membrane variant within the Rawmat product family, providing self-sealing waterproofing for below-ground and structural applications.
• Rawmat Ancillaries Complementary accessories and ancillary products designed for use with the Rawmat waterproofing membrane system, including sealing and fixing components for installation.
• STOPAQ Corrosion Prevention Products Visco-elastic polymer-based corrosion prevention and sealing products distributed by Rawell in the UK for petrochemical, pipeline, and infrastructure asset protection applications.
• STOPAQ Aquastop STOPAQ-branded water-stopping and sealing product within the STOPAQ visco-elastic range, used for sealing against water ingress in infrastructure and pipeline applications.

Quantifiable outcome

• Life expectancy exceeding 100 years for Rawmat HDB membrane when installed in buried state
• +3 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• TSA (Tank Storage Association)coreGTM or Marketing Partner · 23 September 2021Rawell participated as an exhibitor at the TSA Conference 2021 at Coventry Building Society Arena to promote Rawmat HDB secondary containment lining systems and Stopaq corrosion prevention products to TSA members.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Sika AG: Sika is a global construction chemicals major with waterproofing, sealing, and structural protection portfolios that compete in many of the same structural waterproofing and infrastructure applications as Rawell, though Sika's offering is far broader and not focused on prehydrated GCLs.
• Carlisle Construction Materials: Carlisle is a broad construction products manufacturer with waterproofing membranes and building envelope solutions that compete in commercial structural waterproofing — a segment where Rawell serves customers like Microsoft, Standard Life, and Manchester Airport.
• Trelleborg Group: Trelleborg's engineered polymer solutions include geomembranes, seals, and anti-corrosion coatings overlapping with Rawell's Rawmat HDB and STOPAQ distribution lines, particularly in infrastructure and oil & gas applications.

Direct peers

• AGRU America: AGRU manufactures HDPE and LLDPE geomembranes, geosynthetic clay liners, and other containment products used in the same environmental, mining, and petrochemical secondary containment projects where Rawell specifies its membranes.
• Naue GmbH & Co. KG: Naue manufactures Bentofix geosynthetic clay liners and a broad geosynthetics portfolio serving the same environmental, civil engineering, and containment applications as Rawell, including landfill and water containment.
• HUESKER: HUESKER manufactures geosynthetics including GCLs, geogrids, and geocomposites used in environmental containment, mining, and civil engineering infrastructure — overlapping directly with Rawell's served applications.
• Maccaferri: Maccaferri offers a wide range of geosynthetics, geomembranes, and environmental containment solutions, directly competing in mining, landfill, and infrastructure waterproofing segments where Rawell's prehydrated GCLs are specified.
• Seal For Life Industries (STOPAQ parent): Seal For Life Industries owns the STOPAQ visco-elastic corrosion prevention technology that Rawell distributes in the UK and Ireland. It is both a supplier/partner and a competing brand globally in pipeline and infrastructure corrosion protection.
• CETCO (Minerals Technologies Inc.): CETCO's Bentomat and Claymax are among the most widely specified GCL brands globally, competing directly with Rawmat HDB in landfill, mining, and tank farm containment projects. CETCO is the largest direct competitor in the GCL category.
• Solmax (GSE Environmental): Solmax is one of the world's largest manufacturers of geosynthetics including geosynthetic clay liners, high-density polyethylene geomembranes, and geocomposites used in the same environmental containment and petrochemical secondary containment applications as Rawell's Rawmat HDB.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Rawell Environmental