
Develop and produce chemical products for the industrial surface treatment of metals – chromium-free and for continuous and batch processes.

AD International B.V. / AD Chemicals GmbH
Emmerich am Rhein, DE · Heijningen, NLNew on Amplifa
About AD International
AD International, with the AD Chemicals division, is a provider of chemical products for metal surface treatment. The company develops, produces, and supplies cleaners, degreasers, chromium-free pre-treatment systems, conversion coatings (MM31®), passivation for hot-dip galvanized steel (HDG), sealing products for aluminum anodizing, TOC coatings, and paint strippers. Customer-specific solutions are offered for continuous processes (Coil Coating, PrimeCoat® series, PrimeLube®) and batch processes (spray, dip, and cascade processes). Treated materials include aluminum, steel, hot-dip galvanized steel, stainless steel, coil steel (GA/GI/AZ), and plastics. Customers come from the coil steel and steel industry, hot-dip galvanizing, the automotive and vehicle construction sectors, as well as the facade, architecture, and marine industries. Production takes place in Heijningen (NL) in a Seveso III certified facility in the heart of the European chemical industry; the office of the German subsidiary AD Chemicals GmbH is located in Emmerich am Rhein.
- Site
- Emmerich am Rhein
- Processes
- Cleaning/Degreasing (Cleaner OV, water-based cleaner/degreaser, SurfClean RC), Chemical pretreatment of aluminum (degreasing, etching, conversion coating, chromium-free), Anodizing of aluminum (Qualanod-certified sealing products), MM31® conversion coating (One Step Pretreatment, one-step chemical pretreatment), Iron phosphating (general steel industry), Passivation after hot-dip galvanizing (HDG), Passivation/Pretreatment/TOC for coil steel (Coil Coating, PrimeCoat® series), Paint removal/stripping (Strip MCV, Strip MMA, Strip 813 MF)
- Materials
- Aluminum, Steel (hot-dip galvanized), Stainless steel, Coil steel (GA/GI), Plastic (Adhesion improvement with MM31®), Steel, hot-dip galvanized, Coil steel (GA/GI/AZ), Plastic
- Certificates
- ISO 9001, ISO 14001, ISO 45001, Seveso III (Plant certification), Qualicoat (Product conformity), GSB, Qualisteelcoat, Qualanod, Qualimarine compliant, Qualicoat / GSB / Qualisteelcoat / Qualanod / Qualimarine
- Founded
- 1974
- Industries
- Coil Steel Industry, General Steel Industry, Hot-Dip Galvanizing (HDG), Coil Coating, Automotive Industry, Vehicle Construction
- 01
Research & Development (customer-specific product development)
- 02
Production of chemical products (Heijningen, NL)
- 03
Quality Control / Certification (Qualicoat, GSB, Qualanod, etc.)
- 04
System tests and free product samples at the user's facility
- 05
Technical service, training and qualification program
- 06
Worldwide distribution through sales partners
Materials & Processes
Aluminum
Chromium-free pretreatment, conversion coating, and Qualanod-certified sealing products for anodizing.
Steel, hot-dip galvanized
Passivation products after hot-dip galvanizing (Duplex Systems, HDG).
Coil steel (GA/GI/AZ)
Passivation, pretreatment, and TOC cleaners for the coil coating industry.
Stainless steel
One-step conversion coating MM31® to improve paint adhesion and corrosion protection.
Plastic
Improved adhesion for organic coatings with MM31®.
Steel
Iron phosphating and cleaning/degreasing in the general steel industry.
Locations
Emmerich am Rhein
DEOffice / Administration of AD Chemicals GmbH

Heijningen
NLProduction site
- Materials
- Chemical products for cleaning, pretreatment, passivation, TOC
Application Examples



Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Cleaning/Degreasing (Cleaner OV, water-based cleaner/degreaser, SurfClean RC)Surface | – | – | – | – | Metals, Coil steel |
| Chemical pretreatment of aluminum (degreasing, etching, conversion coating, chromium-free)Surface | – | – | – | – | Aluminum |
| Anodizing of aluminum (Qualanod-certified sealing products)Surface | – | – | – | – | Aluminum |
| MM31® conversion coating (One Step Pretreatment, one-step chemical pretreatment)Surface | – | – | – | – | Aluminum, Galvanized steel, Stainless steel, various other metals, Plastic |
| Iron phosphating (general steel industry)Surface | – | – | – | – | Steel |
| Passivation after hot-dip galvanizing (HDG)Surface | – | – | – | – | Steel (hot-dip galvanized) |
| Passivation/Pretreatment/TOC for coil steel (Coil Coating, PrimeCoat® series)Surface | – | – | – | – | Coil steel, Aluminum (AL), Aluminum-zinc (AZ) |
| Paint removal/stripping (Strip MCV, Strip MMA, Strip 813 MF)Surface | – | – | – | – | Metals |
| Lubricant booster for forming processes (PrimeLube®, tribological optimization)Surface | – | – | – | – | hot-dip galvanized GI steel, galvannealed steel |
| Process consulting / customer-specific modular solutions, system testsEngineering | – | – | – | – | – |
Additional services
Reference customers
Quality & Certifications
All products comply with REACH and RoHS and meet or exceed international standards such as Qualicoat, Qualisteelcoat, GSB, Qualanod, and Qualimarine. The production facility in Heijningen is Seveso III certified and is ISO 9001, ISO 14001, and ISO 45001 certified; users can qualify themselves through the AD Chemicals qualification program.
| Evidence | Emmerich am Rhein | Heijningen |
|---|---|---|
| ISO 9001 | ||
| ISO 14001 | ||
| ISO 45001 | ||
| Qualicoat / GSB / Qualisteelcoat / Qualanod / Qualimarine |
History
- 1974
Founding of AD International.
- 2025
Establishment of AD Chemicals GmbH in Emmerich am Rhein on September 1, 2025.
- 2026
AD International is among the winners of the Oranje Handelsmissiefonds 2026.