What MTPM / 4GL / SPM44 does

MTPM / 4GL / SPM44 is a French regional metal surface treatment services group operating three production sites in Le Poiré Sur Vie (Vendée) and Les Sorinières (Loire-Atlantique). The group is owned and directed by Louis-Michel Guérin, who acquired MTPM in 2007; 4GL was created in 2013 and SPM44 joined in June 2020. The group is part of the OAT Ouest Alliance Traitement consortium, which expanded in 2025 with the addition of POIRIER SAS and Bretagne Émaillage.

The group's offering covers the full metal finishing chain: shot blasting and sandblasting (grenaillage/sablage), pure zinc metallization by electric-arc projection (shoopage), epoxy/polyester powder coating (thermolaquage) cured at 200°C with a 7m oven, and industrial liquid paint (polyurethane, epoxy, anticorrosion, food-grade, high-temperature). Underlying assets include a 9m x 4.5m x 4m metallization cabin, 15m conveyor systems, a 10.8m x 4.48m x 3.36m sandblasting cabin, and 15,000 m² of terrain (with 6,000 m² outdoor storage) at the 4GL site. MTPM and SPM44 are Star Coater network members; 4GL and SPM44 hold ACQPA certification. MTPM sources Axalta thermodurcissable powders.

The business runs a sales-led B2B professional services model. Revenue is generated via quote-based service fees tied to piece dimensions, material, complexity, and treatment type, with customers requesting quotes by phone or website contact form and dropping pieces off at one of the three sites. The customer base is dominated by SMB metalwork, locksmithing, ironwork, welding, and agro-food professionals in Vendée and Loire-Atlantique. Marketing is conducted through the corporate website (peinture-mtpm.fr), Facebook (MTPM85), and LinkedIn; no intermediaries or resellers are used.

Name

MTPM / 4GL / SPM44

Legal name

M. GUÉRIN Louis Michel

Website

https://peinture-mtpm.fr

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

11–50 employees

Short description

MTPM / 4GL / SPM44 is a French regional B2B metal surface treatment group operating three production sites in Vendée and Loire-Atlantique, delivering shot blasting, sandblasting, zinc metallization, powder coating, and liquid painting for SMB metalwork, locksmithing, ironwork, welding, and agro-food professionals.

Ownership category

akta.pro rank

Product category

Metal Surface Treatment Services

NAICS

Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers (332812), Coating, Engraving, Heat Treating, and Allied Activities (33281)

SIC

Sheet Metal Work (3444)

akta.pro primary industry

Surface Preparation & Abrasive Blasting (Sand/Grit/Shot/Waterjet) (IMAIAKAC)

akta.pro secondary industries

Protective Coatings, Galvanizing & Metal Finishing for Structural Steel (IMADACAK), Surface Preparation Equipment (Shot Blasting, Scarifiers, Grinders) (IMAHALAL), Surface Treatment & Finishing Equipment (Coating, Plating, Deburring, Shot Blasting) (IMAHADAJ)

Keywords

• Metal surface treatment
• Shot blasting services
• Powder coating services
• Zinc metallization
• Industrial painting

Headquarters

HQ city

Le Poiré Sur Vie

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Surface Treatment Services: B2B service business providing metal surface treatment including shot blasting, sandblasting, metallization, powder coating, and liquid painting. Revenue generated through service fees based on piece complexity, dimensions, and treatment type. Primarily serves industrial and building professionals.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

MTPM / 4GL / SPM44 provides B2B metal surface treatment services through three industrial sites, offering shot blasting, sandblasting, zinc metallization, powder coating, and industrial liquid painting for steel, stainless steel, aluminum, cast iron, and PVC supports. The group serves industrial and construction professionals (metalwork, locksmithing, welding, ironwork, agro-food) across the Vendée, Loire-Atlantique, and Grand Ouest regions of France, with capacity for pieces up to 9 meters in length.

Product overview

MTPM / 4GL / SPM44 is a metal surface treatment group consisting of three entities: MTPM (specializing in sandblasting, micro-blasting, metallization, and powder coating, founded 1999, Star Coater member), 4GL (specializing in shot blasting and liquid paint for large metal pieces, founded 2013), and SPM44 (specializing in sandblasting, metallization, powder coating, and liquid paint, joined in 2020). Together they offer a complete range of surface treatment services including Grenaillage/Sablage, Métallisation/Shoopage, Thermolaquage/Poudrage, and Peinture Liquide. The group serves professionals in metalwork, locksmithing, welding, and agro-food industries across Vendée and Loire-Atlantique.

Differentiator

Problem solved

Functional benefit

Brands

• Star Coater: Network membership for powder coating quality standards - MTPM and SPM44 are members of the Star Coater network

Products and services

• Grenaillage & Sablage (Shot Blasting & Sandblasting)
• Métallisation / Shoopage (Zinc Metallization)

Quantifiable outcome

• Leader regional du traitement de surface dans la région

Named customers4 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Two partnerships are on record, tiered core.

• Star CoatercoreStrategic or Co-development PartnerMTPM and SPM44 are members of the Star Coater network, a professional network for powder coating companies. Membership requires meeting technical, environmental, and quality standards defined by the network charter.
• OAT Ouest Alliance TraitementcoreStrategic or Co-development PartnerMTPM, 4GL, and SPM44 are part of OAT Ouest Alliance Traitement, a group bringing together surface treatment companies. The group recently expanded by welcoming POIRIER SAS and Bretagne Émaillage, strengthening collective capabilities.

Scale indicators5 records

Recent moves8 records

Expansion highlights5 records

Others

• Axalta Coating Systems: Global powder and liquid coatings manufacturer that supplies MTPM (Axalta AP/IP ranges). Adjacent player in the value chain: a supplier relationship rather than a direct competitor, but a benchmark for coating technology and quality.
• Star Coater Network: Network of independent powder-coating professionals whose charter MTPM and SPM44 subscribe to. Not a competitor but a peer ecosystem that shapes competitive standards and could include direct competitors among its members.
• PPG Industries: Global industrial coatings supplier. Operates upstream of MTPM as a paint and powder supplier; adjacent relationship with overlapping customer base in metal fabrication and architectural metalwork.

Broad incumbents

• Aalberts Surface Treatment: Division of Aalberts N.V. providing industrial surface-treatment services across Europe, including France. Overlaps with MTPM on powder coating and metallic coatings but operates at significantly greater scale and geographic breadth.
• Bodycote: Global leader in surface treatment and thermal-processing services with French operations. Provides overlapping capabilities (coatings, heat treatment, surface preparation) but at a much larger, multi-country scale.
• Praxair Surface Technologies (Linde): Global surface-treatment and coatings service provider within Linde. Competes in advanced coating applications with industrial customers; broader portfolio than MTPM but addresses overlapping demand.

Direct peers

• Galva Union: French specialist in hot-dip galvanizing and related metallic coatings for steel structures. Directly comparable anti-corrosion finishing service with overlapping industrial and construction customer base.
• HEF Group: Major French surface-treatment specialist offering a similar portfolio of coatings, anti-corrosion treatments and tribological finishes to industrial customers. Directly comparable service profile, target verticals (industry, transport, energy) and pan-regional footprint.
• Socomore: French specialist in surface preparation, protection and chemical surface-treatment solutions. Comparable customer base in aerospace, industrial and metal-fabrication markets with similar coating and pre-treatment focus.
• Projex Industries: French industrial-services group offering surface treatment, coatings and metal-finishing solutions. Similar B2B services model targeting industrial and metalwork customers in France.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/MTPM85
• LinkedInlinkedin.com/company/mtpm-4gl-spm44

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 MTPM / 4GL / SPM44