What Polyseam does

Polyseam Limited, founded in 1993 and headquartered in Huddersfield, UK, is a privately-held construction chemicals manufacturer that formulates, produces, and distributes sealants, adhesives, fillers, coatings, and passive fire protection products. The company has operated as a subsidiary of the Norwegian-headquartered Protecta Group AS since October 2013 and reaches customers in 50-100+ countries through the Protecta brand (B2B firestopping for contractors, specifiers, and distributors), the GRAFT brand (consumer-friendly sealants distributed primarily in Scandinavia), and contract private label manufacturing for businesses entering or extending footprint in construction materials. Its leadership team is led by CEO Kjetil Bogstad and includes regional Managing Directors for Norway (Jørn Davidsen), Sweden (Fredrick Thurjfell), and the newly-formed Austria subsidiary (Stefan Renner), alongside a Director-level bench covering product development, manufacturing, sales, service, and finance.

The company's core technology is branded "Intelligent Chemistry" and centres on in-house formulation. Flagship platforms include Protecta FR IPT (Inert Polymer Technology) — a 2-in-1 fire-resistant sealant and adhesive with EMICODE EC1PLUS lowest-VOC certification and 25% movement capability — as well as Protecta FR Acrylic (first non-graphite acrylic tested without deleterious effect on cPVC sprinkler pipes), ECO-foil reusable cartridges (60+ uses), and approximately 150 SKUs spanning fire collars, stonewool boards, mortars, service transits, dampers, fire-retardant paint, and cable coatings. Approximately 100+ third-party certifications across UL, Warringtonfire, IFC, ETA, CE, UKCA, GEV, and BS EN standards underpin regulatory compliance, alongside ISO 9001, ISO 14001, and ISO 45001 management system certifications.

Polyseam monetises through three revenue streams: (1) own-brand Protecta and GRAFT product sales via an international distributor network; (2) private label contract manufacturing under multi-year agreements with minimum purchase obligations and 6-month termination notice; and (3) ancillary technical training, CPD content, and on-site support. Pricing is quote-based with no public price list. Its 6,600 sqm Huddersfield facility produces 8.5 million cartridges annually, supported by wholly-owned sales subsidiaries in Norway and Sweden and a newly-established Austrian operation (Polyseam GmbH, Salzburg, 2026) targeting the DACH region. Distribution reaches more than 50 countries under own branding and products supplied into 100+ countries directly or indirectly.

Name

Polyseam

Legal name

Polyseam Limited

Website

https://polyseam.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

51–100 employees

Short description

Polyseam Limited is a UK-based construction chemicals manufacturer that formulates and supplies sealants, adhesives, fillers, and passive fire protection products under the Protecta and GRAFT brands, alongside private label manufacturing services for construction-industry partners across 50+ countries.

Ownership category

akta.pro rank

Product category

Construction Chemicals (Passive Fire Protection & Sealants)

SIC

Adhesives & Sealants (2891)

akta.pro primary industry

Firestop & Penetration Sealing Materials (IMADAGAL)

akta.pro secondary industry

Sealants, Adhesives, Gaskets & Marine Elastomers (IMAJAKAL)

Keywords

• Passive fire protection
• Construction sealants
• Fire stopping products
• Private label manufacturing
• Construction adhesives

Headquarters

HQ city

Huddersfield

HQ country

United Kingdom

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Own Brand Product Sales: Sale of proprietary branded products including Protecta (passive fire protection) and GRAFT (consumer-friendly sealants). Protecta sold globally through distributors in Europe, Middle East, and Asia. GRAFT distributed in Scandinavia.
2. Private Label Manufacturing: Contract manufacturing services for businesses looking to extend their own brand with sealants, fillers, adhesives, coatings, and passive fire protection products. Provides expert formulation development, product testing, compliance, custom packaging and labelling, technical training, and global logistics support.
3. Technical Support and Training Services: Provides product training, CPD content, hands-on demonstrations, on-site visits, and online training to support customers in using products effectively.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

Polyseam manufactures and supplies passive fire protection products (fire collars, boards, mortars, sealants, service transits, fire-retardant paints) plus sealants, adhesives, fillers, and coatings for the construction industry. It sells these under its own Protecta (global) and GRAFT (Scandinavia) brands and offers full-service private label contract manufacturing for businesses wanting to extend their brand with construction chemicals.

Product overview

Polyseam is a construction materials manufacturer offering three core product categories: (1) Passive Fire Protection products under the Protecta sub-brand including fire-rated collars, boards, mortars, sealants (FR IPT, FR Acrylic, FR Graphite), service transits, and interior fire-retardant paints; (2) Sealants, Adhesives & Fillers including fire-rated, indoor/outdoor, acrylic, multi-purpose, high-temperature products, foams, and wood fillers; (3) Coatings including fire retardant interior paint, fire-rated steel paint, water-resistant coatings, and cable fire protection coatings. The company also offers private label manufacturing services and operates the GRAFT consumer-friendly brand for Scandinavian markets. The Protecta Technical Handbook serves as documentation supporting the product range, and the Protecta Project Manager App provides digital tools for installation planning and compliance documentation.

Differentiator

Problem solved

Functional benefit

Brands

• Protecta: Market leader of fire-rated products offering an extensive range of penetration and linear gap seals. Provides effective and efficient firestopping solutions for buildings worldwide. Products are thoroughly tested with complete supporting documentation for fire safety compliance.
• GRAFT

Products and services

• Protecta (Sub-brand) Market-leading brand of fire-rated passive fire protection products offering an extensive range of penetration and linear gap seals (fire collars, wraps, mortars, putty, stonewool boards, service transits, dampers, and sealants) for effective firestopping solutions in buildings worldwide. For construction professionals, contractors, and distributors.
• GRAFT (Sub-brand) Consumer-friendly brand for professional installers providing optimised chemical composition sealants with colour-coding for easy product selection. Distributed in Scandinavia through local partners such as Lagerstore AB.
• Protecta FR Collar Fire-rated collar for plastic pipes usable as a retrofit solution for pipes up to 400mm diameter. Can be fitted on top of concrete floor slabs and accommodates annular gaps up to 22.5mm, with compatibility for Aquatherm Green, Geberit Silent, and Wavin Si Tech pipes. For construction and fire-stopping professionals.
• Protecta FR Board Fire-rated stonewool board for linear gap seals up to 800mm wide, large PEX pipes, metal pipes with PE foam insulation, PVC pipes up to Ø 400mm, composite pipes, and conduits, with 102 separate certified approvals. For fire-stopping contractors and installers.
• Protecta EX Mortar Fire-rated mortar providing structural seals in floors and vertical applications, offering nearly 100 third-party accredited tested solutions including approvals for plastic pipes, large pipes up to Ø 315mm, metal pipes with phenolic foam, and multiple composite pipe systems. For construction and fire-stopping professionals.
• Protecta FR IPT (Inert Polymer Technology) High-performance 2-in-1 fire resistant sealant and adhesive using innovative Inert Polymer Technology. Works as both sealant and adhesive, approved for walls up to 75mm thick, with 25% movement capability and lowest VOC emissions (EMICODE EC1PLUS certified). For fire-stopping professionals and contractors.
• Protecta FR Acrylic Non-graphite based acrylic fire-rated sealant. First manufacturer to successfully test on cPVC sprinkler pipes without deleterious effect, offering a cost-effective fire protection solution. For construction and fire-stopping professionals.
• Protecta FR Graphite Sealant CE marked fire-rated graphite sealant with extended scope including plastic conduits ≤ Ø 110mm, PP pipes with improved fire resistance, 160mm Ø PVC pipes, and steel pipes with 50mm elastomeric foam. For fire-stopping professionals.
• Protecta Interior Paint FR-1 (Cool Paint) Fire-retardant interior paint with K10 classification for timber substrates. Single-coat protection forming dense insulating intumescent char to prevent smouldering and ignition for 10 minutes, improving fire retardancy from D-S2-D0 to B-S1-D0 classification. Water-based, durable, suitable for public, commercial, industrial, and residential buildings.
• Service Transits (FR, FF, FD) Service transits maintaining fire resistance of breached walls and floors: FR type for standard round casing in floors and walls; FF variant for floor applications with seamless soffit integration; FD type with rectangular duct format and steel casing for square plastic ducts. For construction and fire-stopping professionals.
• ECO-foil System Reusable cartridge system for 300ml sealant foil designed to be reused at least 60 times, significantly reducing plastic waste compared to single-use cartridges. For construction professionals using sealants and adhesives.
• Protecta Project Manager App
• Private Label Manufacturing Services

Quantifiable outcome

• Products trusted in over 50 countries with hundreds of product certifications
• +3 more outcomes

Named customers3 records

Segments4 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

Two partnerships are on record, tiered core.

• Stefan RennercoreOthers · 1 March 2026Stefan Renner joins as Managing Director of Polyseam GmbH to lead Central European expansion. Brings extensive experience within passive fire protection and deep understanding of regional construction industry requirements.
• Lagerstore ABcoreChannel Partner/ Reseller/ DistributorSwedish distribution partner handling Polyseam AB operations in Sweden. Located in Skärholmen, Stockholm.

Scale indicators10 records

Recent moves11 records

Expansion highlights6 records

Broad incumbents

• H.B. Fuller: US-listed industrial adhesives company with significant construction adhesives and sealants exposure; competes with Polyseam's adhesive range and operates private-label contract manufacturing at scale.
• Sika AG: Swiss-listed global leader in construction chemicals, sealants, adhesives, and firestopping; competes with Polyseam in sealants and increasingly in passive fire protection, but at vastly larger scale and with broader product portfolios.
• Würth (Fire Protection / Chemical Division): Würth offers firestopping sealants, foams, and ancillary construction chemicals sold through its integrated global trade distribution network, comparable to Polyseam's private-label and own-brand distribution channels.
• Bostik (Arkema): Arkema-owned global adhesives and sealants manufacturer with strong construction channel presence and private-label manufacturing capability; overlaps directly with Polyseam's sealant, adhesive, and filler ranges.
• BASF Master Builders Solutions: BASF's construction chemicals division offers sealants, mortars, and coatings at global scale with deep R&D resources, competing with Polyseam's broader construction chemicals portfolio.
• 3M (Industrial Adhesives & Fire Protection): 3M's FireDam and construction sealant ranges compete with Protecta firestopping and Polyseam sealants, while 3M offers the global certification depth and distribution Polyseam is building toward.

Direct peers

• Everbuild (Sika): UK-based sealants, adhesives, and fillers brand owned by Sika with strong distribution in trade and DIY channels; the closest direct competitor to the GRAFT and Polyseam branded sealant ranges.
• Promat (Etex): Etex-owned passive fire protection specialist producing fire-rated boards, sprays, and penetration seals that overlap with Protecta EX Mortar and Protecta FR Board products.
• Nullifire (Tremco CPG / RPM International): Specialist firestopping brand owned by Tremco (RPM), offering intumescent sealants, collars, and boards that directly overlap with the Protecta fire protection range.
• Hilti (Firestop): Hilti's firestop sleeve, collar, and sealant portfolio is the most direct competitor to Protecta's penetration seals and service transits, serving the same European and global specification market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/polyseam-ltd
• Facebookfacebook.com/PolyseamNorge

Compliance12 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Subsidiaries3 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 Polyseam