What Crommelin Waterproofing & Sealing does

Crommelin Waterproofing & Sealing is a privately held Australian manufacturer of waterproofing membranes, concrete and stone sealers, paint and specialty coatings, founded in 1957 and headquartered in Welshpool, Western Australia. The company operates an in-house industrial chemistry team and produces a comprehensive portfolio organised across sub-brands including DiamondTough (stone and concrete care), Gecko Special Coatings (epoxy, polyurethane and polyaspartic floor systems), Sikkens (timber coatings), AquaBlock (primers), LiquidStone (decorative coatings) and Nordsjo (professional fillers). Core technology centres on water-based elastomeric membranes, silane/siloxane penetrating sealers, and acrylic/epoxy/polyurethane coating systems, with compliance to Australian Standards AS4858, AS3740, AS4654, AS4773.2 and AS2311 plus ISO 9001 quality certification.

Crommelin serves three customer segments — Home DIY, Trade & Professional Applicators, and Design & Construct (architects, specifiers, builders, contractors) — through a channel-led go-to-market model. Products are sold primarily through Australia's largest hardware retailers (Bunnings Warehouse, Haymes Paint, Mitre 10, Tradelink), supplemented by state-based specialist distributors and the company's own service centres in Perth, Melbourne, Brisbane and Sydney. International distribution is handled through appointed agents and distributors across New Zealand, Hong Kong, India, Indonesia, Malaysia, Taiwan, Thailand, Sri Lanka, South Africa and the United Kingdom.

Revenue is generated through one-time product sales (no subscription, licence or recurring model is disclosed), with no publicly available pricing or financial data. The company supports customers via a 7-day technical advice line (1800 655 711), downloadable technical and safety data sheets, and detailed application guides for waterproofing, sealing, anti-graffiti and asbestos encapsulation use cases. Ownership structure, headcount, revenue and any investor or parent-company relationships are not disclosed in available source material.

Name

Crommelin Waterproofing & Sealing

Legal name

Crommelin Waterproofing & Sealing

Website

https://crommelin.com.au

Company type

Private

Founded year

1957

Operating status

Operating

Headcount range

11–50 employees

Short description

Crommelin Waterproofing & Sealing is a privately held Australian manufacturer, founded in 1957, of waterproofing membranes, concrete and stone sealers, and specialty coatings, serving Home DIY consumers, trade applicators and design-and-construct specifiers through major Australian hardware retailers and an international distributor network across Asia-Pacific, Africa and the UK.

Ownership category

akta.pro rank

Product category

Construction Coatings & Sealants

NAICS

Paint and Coating Manufacturing (32551), Adhesive Manufacturing (325520)

SIC

Paints, Varnishes, Lacquers, Enamels & Allied Prods (2851), Adhesives & Sealants (2891)

akta.pro primary industry

Industrial & Protective Coatings (IMAEAGAB)

Keywords

• Waterproofing membranes
• Concrete sealers
• Stone sealers
• Epoxy floor coatings
• Timber coatings

Headquarters

HQ city

Welshpool

HQ country

Australia

HQ region

Oceania

Offices7 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Waterproofing and Sealing Product Sales: Manufacture and sale of waterproofing membranes, concrete sealers, stone protectors, paint coatings, and specialty coatings through retail distribution channels and direct commercial sales. Revenue is generated through one-time product purchases by consumers, trade professionals, and commercial contractors.

Go-to-market motion1 record

Distribution channels6 records

Marketing channels4 records

Core offering

Crommelin manufactures and supplies a broad portfolio of waterproofing membranes, concrete and stone sealers, specialty coatings, timber coatings, decorative finishes, and ancillary surface-preparation products under brands including DiamondTough, Gecko Special Coatings, AquaBlock, LiquidStone, Sikkens, and Nordsjo. The company sells these coatings and sealants through Australian hardware retailers (Bunnings, Mitre 10, Haymes Paint, Tradelink), its own service centres, state-based specialist distributors, and international agents across Asia-Pacific, South Africa, and the UK.

Product overview

Crommelin Waterproofing & Sealing is an Australian manufacturer with over 60 years of industry experience, offering a comprehensive portfolio of premium coating solutions. The product range consists of multiple sub-brands and product categories serving three main market segments: Home DIY, Trade & Applicators, and Construction. Core product lines include: DiamondTough (stone and concrete care with various sealers and cleaners), Gecko Special Coatings (professional epoxy, polyurethane, and polyaspartic floor coatings), Waterproofing solutions (membranes like Wetite Rapid, Cemproof, WB2K, Membryl for wet areas, roofs, and below-ground applications), Sealing & Protection products (Enhance line including Satin, WB, WSi, Tintable Colours; Stain Repel; Natural Finish Penetrating Sealer), Concrete treatment products (Lithium Densifier, Rocfloor, Next Day New Concrete Sealer), and specialty coatings for Anti-Graffiti, Asbestos Encapsulation, and Timber Care (via Sikkens partnership). The company also offers complementary product lines including LiquidStone decorative coatings, Nordsjo professional fillers, AquaBlock primers, and Fix & Finish colour waterproof paint. The products are distributed through major Australian retailers including Bunnings, Haymes Paint, Mitre 10, and Tradelink, with international distribution across Asia-Pacific, Africa, and the UK.

Differentiator

Problem solved

Functional benefit

Brands

• DiamondTough: Stone and concrete care product line including sealers, cleaners, and protective coatings.
• Gecko Special Coatings
• Sikkens
• AquaBlock
• LiquidStone
• Nordsjo

Products and services

• Wetite Rapid Waterproofing Membrane Water-based SBR polymer waterproofing membrane with rapid drying and tile-over times, for under-tile and wet area applications in bathrooms and showers, compliant with AS4858 and AS 3740.
• Membryl Waterproofing Membrane High performance water-based elastomeric waterproofing membrane with long-term UV stability and anti-carbonation protection, for exterior above-ground applications, compliant with AS4654 Part 1.
• WB2K Two-Part Epoxy Moisture Barrier & Floor Sealer Two-part epoxy coating for positive and negative side moisture barrier, abrasion resistant floor sealer, and primer for waterproofing membranes.
• Cemproof Flex 1P Waterproofing Membrane Flexible waterproofing membrane for slab edge and general waterproofing applications.
• Cemproof Ultra Flex-300 Under-Tile Waterproofing Membrane Under-tile waterproofing membrane with enhanced flexibility and 300-series performance designation.
• Enhance Tintable Colours Sealer Tintable coloured sealer that re-colours, rejuvenates, seals and protects concrete and paving surfaces, available in multiple colours with satin finish.
• Enhance Satin Surface Coating Clear satin finish surface coating providing premium protection and deep wet-look finish that restores and enhances natural colours.
• Enhance WB Water-Based Sealer Clear water-based film forming stain and water repellent coating for low and medium porosity concrete and masonry surfaces, with biocide to inhibit fungal growth; compliant with AS2311.
• Enhance WSi Penetrating Treatment Highly penetrating concrete, masonry and natural stone treatment providing high water repellency with different sized polymer particles; compliant with AS4773.2.
• Gloss Wet Look Concrete & Paving Sealer Tough gloss finish film forming sealer providing classic wet-look finish with excellent stain, water and abrasion resistance.
• Satin Wet Look Concrete & Paving Sealer Durable wet-look low sheen finish for concrete and paving surfaces with high stain, water and abrasion resistance.
• Stain Repel Pore-Lining Treatment Clear water-based 100% acrylic pore-lining treatment with premium resistance to staining agents and chemicals for dense natural stone and concrete.
• Lithium Densifier Premium lithium silicate concrete surface densifier, hardener and dust-proofer that increases abrasion resistance up to 6 times.
• Rocfloor Interior Concrete Floor Sealer Interior clear water-based sealer, hardener and dust-proofer for new or old concrete floors providing a tough, durable, stain resistant finish.
• Silane Treatment Si Water Repellent Blend of silane and siloxane technologies providing deep penetrating water repellent barrier for masonry surfaces.
• Natural Finish Penetrating Sealer & Water Repellent Premium silane/siloxane clear surface treatment providing deep penetrating water repellent barrier without altering surface appearance.
• Limestone Sealer Clear water-based surface treatment with water repellency and binding properties for limestone surfaces.
• Limestone & Sandstone Sealer Water-based surface treatment with water repellency and binding properties for limestone and sandstone surfaces.
• Rammed Earth Sealer Clear water-based treatment for penetrating and sealing rammed earth surfaces with excellent UV resistance.
• Roof Defence Acrylic Roof Coating 100% acrylic roof coating for exterior paint and roofing applications providing long-lasting UV and weather protection.
• Maximum-Grip Anti-Slip Additive & Sealer Anti-slip additive and sealer for grip-critical surfaces requiring enhanced traction.
• INSTANT Rust & Bore Stain Remover Cleaning solution for removing rust and bore stains from concrete, stone and masonry surfaces.
• Water Rinsable Surface Cleaner & Sealer Remover General purpose water-rinsable cleaner and degreaser for preparing concrete and paved surfaces prior to sealing, also removes cured sealers.
• Cleaning & Thinning Solvent General purpose cleaning agent for application tools and equipment, and thinning solvent for solvent-based film forming sealers.
• Next Day New Concrete Sealer Surface protection for newly poured concrete that can be applied after 24 hours, providing immediate protection from staining and water damage.
• Interior Concrete Dust-Proofer & Sealer Interior clear water-based penetrating acrylic sealer and dust-proofer providing an economical durable finish.
• AquaBlock Primer & Undercoat Waterproof primer and undercoat for preparing surfaces prior to waterproofing membrane application.
• Fix & Finish Colour Waterproof Paint Colour waterproof paint combining waterproofing protection with decorative finish for various surfaces.
• LiquidStone Decorative Paint Decorative textured coating system for creating distinctive surface finishes on walls and floors.
• DiamondTough Stone & Concrete Care Range Sub-brand product line of stone and concrete care products including sealers, cleaners, and protective coatings for protecting and enhancing stone and concrete surfaces.
• Gecko Special Coatings Floor Systems Professional epoxy, polyurethane, and polyaspartic floor coatings for industrial and commercial applications, including Gecko Epoxyflex HP, Gecko Polyaspartic, and Gecko Polyurethane products.
• Barricade Anti-Graffiti Coatings Protective coatings including Barricade 3S, Barricade NS, and Barricade PU-NS that prevent graffiti adhesion and enable easy removal from commercial surfaces.
• Asbestos Encapsulation Coatings Specialized coatings for encapsulating asbestos-containing materials safely and effectively for remediation and roof-repair projects.
• Sikkens Deck & Timber Coatings Professional deck and timber coating products for protecting and enhancing wooden surfaces including pergolas and fences.
• Nordsjo Professional Fillers Professional-grade fillers for surface preparation including wood fillers, super fillers, and repair compounds.

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

14 partnerships are on record, tiered core and supporting.

• Bunnings WarehousecoreChannel Partner/ Reseller/ DistributorMajor Australian hardware retailer with nationwide presence. Crommelin products are available through Bunnings stores and website for retail customers and DIY consumers.
• Haymes PaintcoreChannel Partner/ Reseller/ DistributorAustralian paint and coatings specialty retailer with store network. Crommelin products distributed through Haymes Paint retail locations.
• Mitre 10coreChannel Partner/ Reseller/ DistributorAustralian hardware cooperative with independent store network across Australia. Crommelin products available through Mitre 10 member stores.
• TradelinksupportingChannel Partner/ Reseller/ DistributorAustralian plumbing and bathroom supplies retailer. Crommelin waterproofing products distributed through Tradelink store network.
• Horticom (New Zealand)coreChannel Partner/ Reseller/ DistributorNew Zealand distributor for Crommelin products. Products also sold through Bunnings New Zealand. Horticom provides local distribution and support for New Zealand market.
• Cromseal Coating SDN BHD (Malaysia)supportingChannel Partner/ Reseller/ DistributorExclusive distributor for Crommelin products in Malaysia. Located in Subang Jaya, Selangor.
• Eastern Gotech (HK) Ltd (Hong Kong)supportingChannel Partner/ Reseller/ DistributorHong Kong agent for Crommelin products. Located in Wan Chai, Hong Kong.
• Nina Concrete Systems Pvt Ltd (India)supportingChannel Partner/ Reseller/ DistributorIndian distributor for Crommelin products. Located in Mumbai, India.
• PT Manunggal Multidaya (Indonesia)supportingChannel Partner/ Reseller/ DistributorIndonesian distributor for Crommelin products.
• Maybery & Pragnell Project Solutions (South Africa)supportingChannel Partner/ Reseller/ DistributorSouth African distributor for Crommelin products. Located in Port Elizabeth.
• Sanken Lanka (Private) Limited (Sri Lanka)supportingChannel Partner/ Reseller/ DistributorSri Lankan distributor for Crommelin products. Located in Colombo.
• K.Y. Industrial Corporation (Taiwan)supportingChannel Partner/ Reseller/ DistributorTaiwan agent for Crommelin products.
• SR Fibre (Thailand)supportingChannel Partner/ Reseller/ DistributorThai distributor for Crommelin products. Located in Bangkok.
• The Asbestos Roof Repair Co Ltd (United Kingdom)supportingChannel Partner/ Reseller/ DistributorUK distributor for Crommelin asbestos encapsulation and roofing products. Located in Stroud, Gloucestershire.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Sika AG: Global Swiss manufacturer of waterproofing membranes, sealants, concrete admixtures and specialty coatings. Directly competes with Crommelin across commercial waterproofing and sealing applications.
• Mapei: Italian global manufacturer of adhesives, sealants and chemical products for the building industry, including waterproofing membranes and concrete protection systems that directly overlap Crommelin's product range.
• Ardex Group: Manufacturer of waterproofing membranes, floor coatings and tiling systems for residential and commercial construction. Competes with Crommelin's Gecko floor coatings and Cemproof/Membryl waterproofing lines.
• Fosroc: Global construction chemicals company producing waterproofing, sealing and concrete protection products. Directly competes with Crommelin in commercial waterproofing specifications across Asia-Pacific.
• Bostik (Arkema): Global adhesives and sealants manufacturer with a strong waterproofing and construction sealants range. Overlaps with Crommelin's sealant and waterproofing membrane categories.
• Selleys (DuluxGroup/Nippon Paint): Leading Australian sealants, adhesives and fillers brand sold through hardware retailers including Bunnings. Directly competes with Crommelin on retail shelf space for sealants and waterproofing products.

Broad incumbents

• BASF Master Builders Solutions: Global construction chemicals division offering waterproofing, sealing and concrete protection as part of a broader chemical portfolio. Competes with Crommelin primarily on commercial specification projects.
• DuluxGroup (Nippon Paint): Australia's largest decorative paint and coatings manufacturer with broad retail presence. While focused on paints rather than waterproofing membranes, Dulux competes for adjacent DIY shelf space and contractor mind share.
• Tremco (RPM International): Global waterproofing, sealants and construction specialty products manufacturer with Australian operations. Overlaps with Crommelin on commercial-grade waterproofing membranes and sealants.

Regional players

• Equus Industries: New Zealand-based manufacturer of waterproofing membranes, protective coatings and specialty construction chemicals. Comparable product portfolio to Crommelin and competes in the New Zealand market alongside Crommelin's Horticom distribution.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/crommelin

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

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 Crommelin Waterproofing & Sealing