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Acidproofing & Industrial Flooring


Acid Proofing & Industrial Flooring
Chemical Resistant Coatings

Metz chemical resistant resinous coatings are used in corrosive environments where our clients wish to prevent attack of generally steel and concrete by extremely strong chemicals. Coatings are economical, highly resistant layers usually of 100–300 microns per coat. 

Whilst reinforcement is possible for areas experiencing heavy physical impacts, high abrasion or high thermal shock, thicker systems are generally used. See Linings & Toppings.

Chemical Resistance Chart (PDF)

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Epoxy & Epoxy Novolac

Metz 4HB

Metz 4HB-EN

Metz 5EN Coating


Metz 20M

Metz 97


Metz Viton® Coating

Epoxy & Epoxy Novolac

An epoxy resin is a compound that contains the reactive epoxide group. These groups can react by cross-linking with other compounds called hardeners or curing agents, forming rigid three-dimensional networks. Many types of curing agents can be used to impart different properties to the finished product. Among these curing agents are aliphatic amines, aromatic amines and cycloaliphatic amines.

There are two main types of epoxy resins:

  • Bisphenol A: Formed by the reaction of Bisphenol A and epichlorohydrin
  • Epoxy Novolac (also called epoxy phenol novolac): Formed by the reaction of phenol and formaldehyde.

Epoxy Novolac resins have higher functionality than Bisphenol A resins, which means they have more sites available for cross-linking with hardeners. This higher cross-link density results in products with higher chemical and temperature resistance.

Metz 4HB Metz 4HB Data Sheet (PDF)
Metz 4HB

Metz 4HB is a chemical resistant high build epoxy coating generally used for industrial concrete floors. A faster setting formulation is available for use in colder conditions. Slip resistance can be improved by inclusion of a special additive.

Typical Uses: Bakeries, Warehouses, Storage Areas, Workshops.

Metz 4HB-EN Metz 4HB-EN Data Sheet (PDF)
Metz 4HB-EN

Metz 4HB-EN is an epoxy novolac formulated coating which exhibits exceptional resistance to corrosive chemicals. Used as a coating in aggressive chemical areas where there is no heavy impact or abrasion, it can also be used as a membrane beneath acid resistant Metz systems when a fabric reinforcing is incorporated.

Typical Uses: Secondary Containment, Mineral Processing, Water Treatment.

Metz 5EN-Coating Metz 5EN-Coating Data Sheet (PDF)
Metz 5EN-Coating

Metz 5EN-Coating is a high solids, sprayable, epoxy novolac coating based on special resins and hardeners which impact outstanding chemical resistance, especially against concentrated inorganic acids.

Typical Uses: Steel tanks, structural steel, walls and lighter duty floors


There are many different types of polyurethanes ranging from soft, elastomeric compounds to rigid materials and polymer concretes.

  • One-part polyurethanes are polyisocyanate compounds that react with moisture.
  • Two-part polyurethanes consist of a polyalcohol and a polyisocyanate which react to form a cross-linked polymer.

The properties of the end product can be modified by altering the type of polyalcohol and isocyanate used, the mix ratio of these components and the fillers incorporated in the system.

Metz 20M Metz 20M Data Sheet (PDF)
Metz 20M

Metz 20M is a 2 part roller or spray applied polyurethane chemical resistant membrane or coating.

Typical Uses: Process Floors, Trenches, Pit, Bunded Areas, Swimming Pools.

Metz 97 Metz 97 Data Sheet (PDF)
Metz 97

Metz 97 is a high build UV colour stable polyurethane coating that can either be used as a stand-alone concrete coating or as a topcoat for various Metz monolithic and lining systems. Slip resistance can be improved by inclusion of a special additive.

Typical Uses: Food & Beverage Plants, Warehouses, Overcoating Metz Resinous flooring and lining systems


Fluoropolymers are polymers that contain fluorine, and include Teflon®, Halar®, PTFE and PVDF. Fluoroelastomers are flexible fluorine compounds that include Viton® Fluoropolymers which have outstanding chemical resistance because of their unique chemical structure. The fluorine provides very strong bonds that are difficult to break. These bonds are much stronger than occur in other polymers, such as polyethylene. Viton® is a registered trademark of DuPont.

Metz Viton Coating Metz Viton Coating Data Sheet (PDF)
Metz Viton Coating

Metz Viton Coating is a fluoropolymer based coating for areas subject to splash and spillage of the most aggressive chemicals. It is also used as a membrane material under Metz Acid Brick and Tile systems where concentrated chemicals exist.

Typical Uses: Chemical Plants, Concentrated Acid Areas.

Viton® is a registered trademark of DuPont

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