Dupre Minerals

What Dupre Minerals does

Dupré Minerals Limited is a UK-based manufacturer of nonmetallic mineral products, founded in the early 1950s and headquartered at Spencroft Road, Newcastle-under-Lyme, Staffordshire. The company operates four core business units serving industrial customers: Vermiculite (loose exfoliated vermiculite and Micalite branded vermiculite boards), Precision Casting (Mullite 55, Rhoseal, Silroc fire putty, and Zirconium Silicate processed at one of Europe's most sophisticated plants), Refractory Products (high-temperature mortars, Micasil insulation sheets, Zircon Wash for petrochemical and furnace applications), and Friction Industry supplies. The company also distributes Perlite (Silvaperl) and Leca Insufill lightweight aggregates, markets the CARA Class A Refractory Adhesive, and operates the AVD Fire sub-brand targeting lithium-ion battery fire suppression. Underlying technology is centred on mineral processing capabilities — exfoliation, calcination, precision milling to strict particle-size grading, and proprietary formulation chemistry developed over 60+ years.

The business operates on a B2B direct sales model with quote-based pricing (not publicly disclosed), supplemented by regional distribution partnerships (e.g., Hoben International for Perlite/Leca). Customers are industrial manufacturers in insulation, friction, horticulture, construction, packaging, investment casting, petrochemical, and fire-protection end-markets. Marketing channels include the company website with downloadable technical datasheets, LinkedIn, and select trade shows. Dupré Minerals Limited is a wholly-owned subsidiary of Goodwin PLC, a diversified conglomerate based in Stoke-on-Trent, and is registered in England and Wales (company number 00632213). The company employs 51-100 people. No AI/ML capabilities, software platforms, or digital products are part of the offering — the value proposition is entirely physical material science and formulation expertise.

Name

Dupre Minerals

Legal name

Dupré Minerals Limited

Website

https://dupreminerals.com

Company type

Private

Founded year

1950

Operating status

Operating

Headcount range

51–100 employees

Short description

Dupré Minerals Limited is a UK-based industrial mineral manufacturer founded in the 1950s, producing vermiculite, precision casting minerals, refractory products, and friction materials for industrial customers across insulation, foundry, petrochemical, and fire-protection end-markets. It operates as a subsidiary of Goodwin PLC.

Ownership category

akta.pro rank

Product category

Industrial Minerals Manufacturing

NAICS

Ground or Treated Mineral and Earth Manufacturing (327992), Clay Product and Refractory Manufacturing (3271), Paint and Coating Manufacturing (325510)

SIC

Abrasive, Asbestos & Misc Nonmetallic Mineral Prods (3290), Paints, Varnishes, Lacquers, Enamels & Allied Prods (2851)

akta.pro primary industry

Perlite & Vermiculite (IMAEAFAJ)

akta.pro secondary industry

Industrial Protective Coatings (Steel/Concrete/Equipment) (IMAIAKAB)

Keywords

• Vermiculite processing
• Precision casting minerals
• Refractory products manufacturing
• Industrial mineral formulations
• High temperature insulation materials

Headquarters

HQ city

Newcastle Under Lyme

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Mineral Products Sales: Manufacturing and selling of vermiculite, precision casting minerals, refractory products, and related mineral-based materials to industrial customers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Dupré Minerals manufactures an extensive range of high quality mineral-based products servicing the Vermiculite, Precision Casting, Friction and Refractory industries. The company formulates and produces vermiculite formulations, precision casting materials (Mullite 55, Fused Silica, Zirconium Silicate), refractory products (mortars, fibre mastics, mica sheets, refractory beads), perlite aggregates, Leca Insufill insulation, Class A Refractory Adhesive (CARA), AVD Fire protection for lithium-ion battery fires, and high-temperature textile coatings.

Product overview

Dupré Minerals is a manufacturer of advanced mineral-based products servicing the Vermiculite, Precision Casting, Friction and Refractory industries. Founded in the early 1950s and based in Newcastle-under-Lyme, Staffordshire, the company offers a diversified portfolio including: Advanced Vermiculite formulations (Loose Vermiculite, Vermiculite Boards/Micalite); Precision Casting materials (Mullite 55, Rhoseal, Silroc Fire Putty, Zirconium Silicate); Refractory Products (Mortar Range including AT Cement, ROCKSET, BR5, BR6, Micasil insulation sheets, Zircon Wash); Perlite (Silvaperl) ultra-lightweight aggregate; Leca Insufill lightweight insulation; Class A Refractory Adhesive (CARA); AVD Fire protection for lithium-ion battery fires; and Textile Coatings for fire protection. The company operates as a subsidiary of Goodwin PLC, combining over 60 years of experience with latest production technology to formulate and manufacture high quality products to meet precise specifications.

Differentiator

Problem solved

Functional benefit

Brands

• AVD Fire: Specifically designed for lithium-ion battery fires, AVDfire delivers superior performance to extinguish flames and minimise damage.
• Micalite
• Silvaperl
• CARA

Products and services

• AVD Fire Specifically designed for lithium-ion battery fires, AVD Fire delivers superior performance to extinguish flames and minimise damage.
• Loose Vermiculite Loose vermiculite with inert properties allowing usage across a wide range of global sectors including insulation, friction, horticulture, construction, and packaging.
• Vermiculite Boards (Micalite) Micalite Vermiculite Boards provide fire resistance, insulation and thermal stability, ideal for wood burning stoves and high-temperature applications.
• Textile Coatings Speciality vermiculite coatings for protection in high temperature applications on textiles.
• Mullite 55 Alumino silicate material specifically chosen for the investment casting and refractory industries.
• Rhoseal (L589D) Dry powder precision casting material which when mixed with Prosol (M061) liquid rapidly sets as a precision casting product.
• Silroc Fire Putty Ready-to-use, plastic refractory putty/mouldable with very low iron content (0.5% Iron Oxide, 72.0% Silica), suitable up to 1200°C maximum service temperature.
• Zirconium Silicate Highest purity Zircon or Zirconium Silicate sourced from American, Australian and South African deposits, processed and milled to stringent grading and particle sizes at one of Europe's most sophisticated plants.
• Mortar Range Range of mortars including AT Cement (siliceous mortar), ROCKSET (general purpose up to 1600°C), BR5 (extra strong for super-duty firebrick), BR6 (water retentive for insulating bricks), and their dry versions, for refractory and petrochemical industries.
• Micasil Electro-thermal insulation sheets (Micasil-C and Micasil-P) consisting of flexible phlogopite mica paper layers bonded with silicone resin for slip plane insulation between crucible and induction coil.
• Zircon Wash (L546D) Dry powder refractory wash requiring mixing with water before use, suitable up to 1600°C maximum service temperature.
• Perlite (Silvaperl) Environmentally friendly, ultra-lightweight aggregate, expanded perlite ranging from very fine powder to aggregate with various particle sizes.
• Leca Insufill Totally inert lightweight insulation specifically created for use in insulation of foundation works.
• Class A Refractory Adhesive (CARA) Ready-to-use, air-drying refractory adhesive formulated to work with Class A fire-resistant substrates, inorganic and non-solvent based fire retardant adhesive for bonding aluminium foil to closed cell polyethylene foam.

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Resco Products: Manufacturer of refractory products including mortars, plastics, and specialty monolithics for industrial furnace and petrochemical customers. Closely comparable to Dupré's refractory mortar range and Micasil sheets.
• Palabora Mining Company: South African miner and one of the world's largest vermiculite producers. A direct upstream and downstream competitor to Dupré in vermiculite supply and exfoliated vermiculite products.
• Cornerstone Industrial Minerals: Specialty producer of perlite and vermiculite-based filtration, insulation, and construction products. Comparable in scale and product mix to Dupré's loose vermiculite and Silvaperl perlite offerings.
• Whittemore Company: Family-owned US manufacturer of refractory mortars, cements, and specialty high-temperature products. Closely comparable niche competitor to Dupré's refractory product line.
• Silbrico Corporation: US-based processor of perlite and vermiculite for industrial, horticultural, and construction applications. Directly comparable to Dupré's Silvaperl perlite and loose vermiculite product lines.
• Thermax (Johns Manville): Johns Manville's Thermax brand produces exfoliated vermiculite-based loose-fill and board insulation products. Directly competes with Dupré's Micalite vermiculite boards and loose vermiculite in fire-resistance and high-temperature insulation applications.

Broad incumbents

• Minerals Technologies Inc. US-listed specialty industrial minerals manufacturer serving paper, steel, and refractory end-markets. Overlaps with Dupré in processed mineral additives and refractory inputs.
• HarbisonWalker International: Largest North American producer of refractory products including mortars, monolithics, and refractory shapes. Directly comparable to Dupré's refractory mortars, Micasil sheets, and high-temperature mortar range serving industrial furnace customers.
• Saint-Gobain: Diversified French materials group with refractory, building products, and high-temperature insulation divisions. Comparable as a broad incumbent with overlapping vermiculite/perlite-based board and refractory product lines.
• Imerys: Global leader in mineral-based specialty solutions with a portfolio that overlaps Dupré's vermiculite, perlite, refractory, and ceramic (Mullite-type) offerings. Operates at far larger scale and competes directly for the same industrial customer base in Europe.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/avdfire
• LinkedInlinkedin.com/company/dupre-minerals-ltd

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 Dupre Minerals