What Hahne does

Hahne is a German specialty construction chemicals company focused on building protection systems for waterproofing, sealing, and coating applications. Founded in 1926 in Datteln by Heinrich Hahne as a shoe polish and floor wax manufacturer, the company pivoted to industrial corrosion protection in 1939 and to bitumen construction coatings during the post-WWII reconstruction period, before evolving into a full-spectrum building protection specialist through the 1970s and 1980s. Since 1998, Hahne has operated as a brand under Sievert SE (a European stock company headquartered in Osnabrück with over 60 locations across Europe), and is currently celebrating its 100th anniversary in 2026.

The company's product portfolio is organized into four proprietary system brands: IMBERAL® for exterior building waterproofing (mineral reactive sealants, bitumen systems, and liquid plastics), INTRASIT® for interior building waterproofing (injection sealing, renovation plasters, and horizontal barriers), HADALAN® for balcony waterproofing and floor coatings (notably the Velo fast-track one-day balcony renovation system), and DAKORIT® for roof waterproofing. Products are formulated as coordinated multi-component systems—e.g., the WTA-certified Sanierputzsystem bundles primer, sealing slurry, base plaster, and spray mortar designed to work in sequence. Recent product launches include the IMBERAL® DAB LF solvent-free liquid plastic in 2025.

Hahne operates a B2B sales model targeting two primary segments: professional craftsmen (Handwerk) and planners/architects (Planung) in the German-speaking construction market. Distribution runs through a network of commissioned trade representatives (Handelsvertreter), direct sales with freight-free delivery above €1,200 net in mainland Germany, and Sievert Akademie training programs that double as product education and demand-generation channels. Geographically, the company maintains localized websites in German, English, Italian, Polish, Czech, French, and Chinese, with the primary market clearly concentrated in Germany. Pricing is quote-based and not publicly disclosed.

Name

Hahne

Legal name

Sievert SE

Website

https://hahne-bautenschutz.de

Company type

Private

Founded year

1926

Operating status

Operating

Headcount range

101–250 employees

Short description

Hahne is a German specialty construction chemicals brand (founded 1926, since 1998 part of Sievert SE) that develops and sells coordinated waterproofing, sealing, and coating systems for professional craftsmen and planners/architects in Europe, organized under four proprietary brands covering basement-to-roof building protection.

Ownership category

akta.pro rank

Headquarters

HQ city

Datteln

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Building Protection Chemical Products: Sale of specialized construction chemical products for building sealing, coating, and renovation applications. Products are sold as complete system solutions targeting professional craftsmen and planners in the construction industry.
2. Training and Seminars (Sievert Akademie): Professional training and seminars for craftsmen and building professionals on product application and building protection techniques, conducted by Sievert Akademie

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Hahne develops and sells specialized construction chemical product systems for building protection, covering exterior and interior waterproofing, balcony and floor coatings, and roof sealing. The company offers four branded product lines — IMBERAL®, INTRASIT®, HADALAN®, and DAKORIT® — marketed as coordinated system solutions rather than individual products. Customers are professional craftsmen and planners in the construction industry, served through trade representatives, direct sales, and Sievert Akademie training.

Product overview

Hahne is a construction chemical company specializing in building protection systems for waterproofing, sealing, and coating applications. The company operates four core product lines: IMBERAL® for exterior building waterproofing (mineral reactive waterproofing, bitumen systems, liquid plastics), INTRASIT® for interior building waterproofing (injection sealing, renovation plasters, horizontal barriers), HADALAN® for balcony waterproofing and floor coatings (including the rapid Velo-System for one-day balcony renovation), and DAKORIT® for roof waterproofing. Products are designed as coordinated system solutions for professional applications in new construction and renovation, covering basement to roof protection.

Differentiator

Problem solved

Functional benefit

Brands

• IMBERAL®: Brand for external building waterproofing products
• INTRASIT®
• HADALAN®
• DAKORIT®

Products and services

• IMBERAL® Exterior Building Waterproofing System Exterior building waterproofing product line for professional craftsmen and planners, including mineral reactive waterproofing (FPD, MDS, OS5b, MDS Poly), bitumen waterproofing (ÖKOPLAST® 1K/2K, polystyrene-filled thick-coat waterproofing), and liquid plastics for surface and detail sealing applications.
• INTRASIT® Interior Building Waterproofing System Interior building waterproofing product line including injection sealing for horizontal barriers and crack injection, WTA-certified renovation plaster systems, and the Ruck-Zuck quick renovation system for moisture protection and masonry renovation.
• HADALAN® Balcony Waterproofing and Floor Coating System Balcony waterproofing and floor coating product line including the Velo fast-track one-day balcony renovation system, epoxy and PU coatings for industrial floors, and garage/parking garage solutions.
• DAKORIT® Roof Waterproofing System Roof waterproofing product line including DIN-compliant solutions, liquid plastic systems, colored roof coatings, and bitumen roof coatings for durable weather protection.
• HADALAN® Velo-System High-speed balcony waterproofing system enabling complete balcony renovation in one day, featuring Velo-Base primer, Velo-Seal waterproofing and wear layer, and optional Velo-Booster for accelerated curing. Allows balcony sealing completion in 90 minutes of working time and walkable surfaces after approximately 2.5 hours.
• INTRASIT® WTA Sanierputzsystem WTA-certified renovation plaster system for treating damp and salt-contaminated walls, combining SP-WTA Plus sanierputz with Aquarol 10A primer, DS1 54Z sealing slurry, and VS-WTA Plus spray mortar. Provides effective protection at moisture levels up to 95%.
• INTRASIT® Ruck-Zuck-System Quick-setting renovation system for damp and salt-contaminated substrates featuring rapid drying times, climate-regulating properties, and anti-mold effect for fast building completion.
• INTRASIT® PU-Aquastop 11P Single-component polyurethane injection resin for sealing water-bearing cracks in mineral building materials, reacting with moisture to expand 30-60 times its volume for rapid water-stop sealing.
• INTRASIT® PU-Injekt 12P Two-component polyurethane injection resin for shrinkage-free crack sealing in all mineral building materials, suitable for tunnel construction and reinforcement of loose masonry structures.
• INTRASIT® IC 28OS Solvent-free injection cream on silane/siloxane basis with 80% active ingredient content for retroactive horizontal barriers in masonry renovation, applicable up to 95% moisture saturation.
• INTRASIT® VK 10A Silicification agent against rising moisture in masonry and concrete, used for exterior area waterproofing combined with cement mortar or sealing slurries, and interior basement waterproofing.
• INTRASIT® MEK 18OS Microemulsion concentrate for retroactive horizontal barriers through non-pressure injection in borehole method and low-pressure injection (less than 10 bar), suitable for highly moist masonry.
• INTRASIT® BLK 18OS Borehole concentrate for horizontal barriers in low-pressure injection method for wall cross-section sealing above water barrier lines, with self-crosslinking hydrophobic properties.
• INTRASIT® DS1 54Z Sulfate-resistant sealing slurry for waterproofing earth-contacting building components against soil moisture, non-pressurized surface water, and containers up to 5m water column.
• INTRASIT® RZ1 55HSP Quick-setting waterproof sealing mortar, fiber-reinforced, for adhesion promotion, sealing and equalization on mineral substrates in layer thicknesses from 3mm to 50mm.
• INTRASIT® Aquarol 10A Special primer for masonry renovation with chemical and physical mode of action, designed for surface consolidation and hydrophobization of INTRASIT® RZ2 55HSP.
• INTRASIT® SP 10A Salt barrier against migration of damaging salts in mineral substrates for retroactive masonry renovation, limiting salt mobility and preventing penetration into fresh plaster.
• INTRASIT® GP-WTA Plus 54Z Base plaster for leveling unevenness, classified as Sanierputzmörtel R CS II according to DIN EN 998-1, suitable for coarse unevenness compensation and as salt storage with high substrate salinization.
• INTRASIT® VS-WTA Plus 54Z Spray mortar for secure adhesion of subsequent WTA renovation plasters, classified as Normalputzmörtel GP CS IV according to DIN EN 998-1, with high sulfate resistance.

Quantifiable outcome

• Balkonabdichtung ausgeführt nach 90 Minuten Arbeitszeit (Balcony sealing completed in 90 minutes working time)
• +2 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Sievert Baustoffgruppe (Sievert SE)coreStrategic or Co-development Partner · 1 January 1998In 1998, Hahne became part of the Sievert Baustoffgruppe, a strong family-owned company with over 60 European locations. Under Sievert's umbrella, Hahne continues to operate as a specialized brand for building protection while benefiting from the group's broader distribution network and resources. The partnership enables coordinated brand strategy (Sievert Gruppe) and shared training infrastructure (Sievert Akademie).

Scale indicators2 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• Mapei S.p.A. Italian global construction chemicals manufacturer with strong waterproofing and building protection lines. Comparable product categories and similar system-solution approach.
• Sika AG: Swiss global leader in construction chemicals including waterproofing, sealing, and flooring. Overlaps with Hahne across multiple product categories but operates at far greater scale and geographic breadth.
• Bostik (Arkema): Global adhesives and sealants business of Arkema with construction applications including waterproofing. Comparable on sealant/adhesive chemistry but much broader portfolio.
• Knauf Group: German family-owned building materials group with drywall, plaster, and surface products. Adjacent to Hahne in renovation plasters and interior building systems.
• Saint-Gobain Weber: Construction chemicals brand of Saint-Gobain covering tiling, waterproofing, and technical mortars. Significant overlap with Hahne in waterproofing slurries and façade protection.
• BASF Master Builders Solutions: BASF's construction chemicals division covering concrete, waterproofing, and sealing. Overlaps with Hahne across multiple specialty waterproofing product lines.

Direct peers

• Sto SE & Co. KGaA: German building protection specialist focused on façades, coatings, and moisture protection. Adjacent in building protection but more weighted toward external façade systems.
• PCI Augsburg (BASF): German construction chemicals brand owned by BASF specializing in tile adhesives, waterproofing, and building protection. Direct overlap with Hahne's waterproofing and sealing portfolio in the German market.
• Remmers GmbH: German family-owned specialist in building protection, waterproofing, and renovation systems. Closely comparable to Hahne in product scope (sealants, plasters, coatings) and DACH customer base.
• MC-Bauchemie: German family-owned manufacturer of construction chemicals including waterproofing, injection systems, and concrete protection. Closely comparable mid-sized specialty competitor.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/hahnebautenschutz
• LinkedInlinkedin.com/company/hahne-eine-marke-von-sievert
• Instagraminstagram.com/hahne__de

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 Hahne