Our Technologies

Our Technologies to Best Serve You

Welding technologies
Coating technologies
Brazing technologies

Welding technologies

Coating technologies

Brazing technologies

Wearplates & CastoTubes®

There are many different ways to repair, rebuild and wearface your parts, each with their respective advantages and constraints. For many customers, the selection of the optimum process is very difficult, time-consuming and filled with risk. Even when the optimum process is known, it is often not possible to do it yourself. Limitations are often imposed either by the welding skills, or the equipment investments available in-house. Our fully equipped Eutectic Services workshops know no such limits! For each and every job, we are able to select the optimal technical solution within the economic constraints that are imposed.




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Welding technologies


  • MMA welding
  • MIG/MAG welding
  • Open Arc welding
  • TIG welding
  • PTA welding
  • Plasma cutting


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MMA (Metal Manual Arc) process

When an arc is struck between the flux coated electrode and the workpiece, both the core wire and the workpiece surface melt to form a weld pool. Simultaneous melting of the flux coating on the rod will form gas and slag which protects the weld pool from the surrounding atmosphere. The slag will solidify and cool and must be chipped off the weld bead once the weld run is complete (or before the next weld pass deposit). Castolin has developed the special EutecTrode® alloy range of low heat input electrodes for industrial wearfacing, repair and joining applications supported by a complete high quality, MMA welding equipment range based on latest technology.

Semi-automatic welding with shielding gas (EnDOtec® and CastoMag®)

MIG is similar to MMA in that heat is produced by forming an arc between a metal electrode and the workpiece. The electrode melts to form the bead. The main differences are that the metal electrode is a small diameter wire fed from a spool and an externally supplied shielding gas is necessary. As the wire is continuously fed, the process is often referred to as semi-automatic welding. The pulse mode was developed as a means of stabilizing the arc at low current values below the threshold level, to avoid short-circuiting and spatter. Metal transfer is achieved by applying pulses of current, each pulse having sufficient force to detach a droplet. Castolin has developed the special EnDOtec® (cored wire) and CastoMag® (solid wire) alloy ranges for industrial wearfacing, repair and joining applications supported by a complete high quality, MIG / MAG welding equipment range based on latest technology.

Semi-automatic welding without shielding gas (TeroMatec®)

Open arc continuous electrodes consist of an outer strip of special alloy, the core of which is packed with a high density of micro-elements. The design makes it possible to obtain high quality deposits at great speed, for coating resistant to all types of wear, as well as for joining. Within this technology a variety of alloys of different formulation can be produced. Castolin has developed the special self-shielded TeroMatec® (flux cored wire) alloy range of low heat input electrodes and the TeroMatec 400 wire feeder for industrial wearfacing, repair and joining applications.

TIG welding (CastoTig®)

In the TIG process the arc is formed between a pointed tungsten electrode and the workpiece in an inert atmosphere of argon or helium. The small intense arc provided by the pointed electrode is ideal for high quality and precision welding. As the tungsten electrode is not consumed during welding, the heat of the arc will melt the base metal and a separate filler rod can be added into the weld pool if required. Castolin has developed the special CastoTig® alloy range for industrial wearfacing, repair and joining applications supported by a complete CastoTIG® welding equipment range based on latest technology.

PTA welding (GAP)

Minimal dilution of the base material, readily automated, easily controlled welding bead means for you high quality and wear resistant coatings in a wide variety of alloys. Excellent for series production. In the PTA process, the plasma is focused while forced through the heat resistant anode, causing a considerable increase of the arc density, energy and temperature. The welding filler alloy, in microatomised powder or cold wire form, is conveyed into the plasma arc column where a shielding gas protects the weld pool from the atmosphere. Castolin has developed special powders for GAP applications supported by a complete high-quality GAP equipment range.

Plasma cutting process

Plasma cutting has always been seen as an alternative to the oxy-fuel process. However, the important difference between the two processes is that while the oxygen-fuel process oxidises the metal and the heat from the exothermic reaction melts the metal, the plasma process operates by using the heat from the arc to melt the metal. The ability to melt the metal without oxidation is essential when cutting metals, such as stainless steel, which form high temperatures oxides. Plasma is an effective means of cutting thin and thick materials alike. Handheld torches can usually cut up to 2 in (48mm) thick steel plate, and more powerful computer-controlled torches can pierce and cut steel up to 12 inches (300mm) thick. Castolin has developed a complete high-quality Plasma cutting equipment range called AirJet based on the latest technology.


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Coating technologies


  • Cold flame spraying
  • Arc wire spraying
  • Hot flame spraying
  • HVOF
  • Polymer coatings


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Thermal spray powders (RotoTec and CastoDyn)

Minimum thermal input, good bonding achieved with substrate material, and wide range of alloys mean cost-effective coating solutions for a wide range of wear problems.

Thermal wire arc-spray (EuTronic Arc)

High deposition rates achieved using electrical arc melting of two cored or solid wires simultaneously means high-quality alloy coatings achieved at affordable prices. On-site spraying for large surfaces.

Thermal spray with subsequent fusing (Eutalloy)

Subsequent fusing gives true metallurgical bonding and a fully dense coating. This means optimum coating quality, excellent for severe abrasion, corrosion and oxidation.

Powder HVOF spraying

Cold spray process at supersonic particle speeds for maximum mechanical bonding means aeronautic quality coatings available at industrial prices, variety of materials and superhead carbides can be applied in thin layers.

Polymer coatings (MeCaTec)

Two-component products applied at ambient temperature means no thermal distortion of parts, very rapid and easy procedures. Protection for unweldable parts and/or complex geometry.


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Brazing technologies


  • Wearfacing
  • Fluxes
  • Rings & Foils
  • Coated Rods
  • Pastes
  • Why Brazing?


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Wearfacing (TeroCote® brazing)

Deposition of diverse alloys and composite materials, using readily available flame equipment, means most abrasion resistant coatings applied with optimal metallurgical bonding and zero dilution with the base material.


Fluxes are carefully engineered chemical products used for removing metal oxides from the surface of metal parts to be joined. This removal or cleaning process takes place during the brazing operation. The selection of the optimal flux for the application, base metal and brazing alloy is essential for successful brazing operations.

Rings & Foils

Our vast product range includes a wide selection of filler metals in the form of diverse rings, foils, wires, rods, pastes and special pre-forms to meet all your OEM and maintenance requirements.

Coated Rods

At Castolin Eutectic, we understand that each application has individual and specific requirements. Therefore, we have designed and manufactured several types of coated rods to meet the demands of our customers. Unlike most competitors, Castolin does not use a universal flux for all rods, each rod contains the type of flux required by the alloy being coated. Additionally, each alloy has a specific flux coating colour which helps operators know which alloy/colour to use.


Brazing pastes are the best choice for automated processes. Castolin Eutectic's pastes distinguish themselves from the competition by having:

  • Maximum paste stability
  • Optimised dispensing characteristics
  • Easy clean-up with water (hands, tools)
  • Minimum development of smoke (furnace brazing)
  • Binder does not influence brazing process
  • Maximum capillarity
  • Highest quality metal powder
  • Simple flux residue removal

  • Why Brazing?

    Brazing has been around for 1000s of years. Brazed joints have been used in plumbing, air-conditioning, heating, electronics and numerous other applications for a very long time. A brazed joint will last a lifetime and is proven to do so. Other materials, such as plastic, have not been around long enough to make the same claims. Additionally, if you do not get it right the first time, with brazing you can reheat the joining and repair it without having to disassemble, or completely reinstall the affected parts. You can rest assure that when brazing you are using the most reliable joining solution on the market.

    Brazing provides high strength joints

    With the proper joint design and correct selection of brazing materials, brazed joints will be stronger than the base materials being joined. Fact: Carbide tools are some of the most abused tools and must withstand the highest amount of the push, pull and impact, and most carbide tools rely on brazing processes to keep the carbide segments in place.


    The perfect capillarity of brazing, and more particularly of the silver brazing, returns practically invisible joints and brazed connections. That is why brazing is used everywhere where the appearance of the parts is of primary importance: for example Goldsmithery, Jewellery, Musical instruments, Spectacle industry, Chandelier factory, Sculptures, Aeronautics, etc.


    Only brazing can truly ensure leak free joints in critical applications such as flammable gases or medical gas installations. Therefore, many norms require that such critical installations be brazed.

    Brazing is hygienic

    Did you know that plastic tubes and joints almost always contain millions of bacteria called Legionella and these Legionella are the source of Legionnaires disease? Legionnaires’ disease is an unusual and serious form of pneumonia caused by inhalation of water droplets containing the bacteria Legionella pneumophilia. Tests have shown that copper tubes that are brazed contain much lower concentrations of bacteria, which means more safety for you and your family.

    Brazing can be used on dissimilar metals and materials

    With brazing materials and processes practically all metals can be joined with each other. Also, nonmetals like glass or ceramics can be joined with brazing processes. The ability to join different materials easily makes the design, development and production of new products possible. We have more and more customers asking for Al-Cu joining solutions. This can be easily done with a number of Castolin products like 190 and 192.

    Brazing can be used for low cost repairs and high volume production

    Brazing is a low cost process that requires very low investment in equipment. In fact, for just 20 Euro you can start brazing today. Brazing is excellent for high volume products, as the use of pastes, rings and wire allow for excellent automation possibilities. In most applications, brazing joints cost less than 0,05 euro. Compared to alternative solutions, brazing is not only better mechanically but also financially.

    Brazing is Easy

    Castolin Eutectic teaches 1000s of people every year how to braze. It literally takes less than one hour to teach someone how to perform basic brazing operations. The ease of brazing should allow companies to be flexible in their production, as well as have few problems finding brazers. Castolin Eutectic’s range of products makes brazing easy by creating products that allow for a wide range of errors by the brazer.

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    Wearplates & CastoTubes®


    • Welded Wearplates
    • Powder Wearplates
    • CastoTubes®


    Ask an Expert

    We're here to help, just ask!

    Welded Wearplates

    With more than 100 years experience in welding and wear protection, Castolin Eutectic is the manufacturer of the widest range of wearplates today on the market in terms of base materials, sizes, coating alloys, and welding processes adopted. From simple Chromium Carbide rich overlays, applied in open arc, to sophisticated NiCrBSi powders additioned with Tungsten Carbides and fused in a vacuum furnace or by means of Plasma Transferred Arc, we have developed a wide choice of products.

    Powder Wearplates

    CDP® Powder Plates are produced by overlaying an easy-to-weld steel plate with a metal powder alloy fused in a furnace under protected atmosphere. The main advantage of these products is the 100% dilution-free overlay obtained, that ensures maximum protection even with just a few millimetres of deposit thickness. Lightweight and therefore easy to handle. Easily formed, and therefore also suitable to tight bending radius.


    They consist of easy-to-weld mild steel tubes which have been internally wearface-welded with TeroMatec 4666 alloy, thus maintaining the exceptional wear resistance of our well known 4666 CastoDur Diamond Plates®. Furthermore, by avoiding expensive forming operations of flat plates into tubes, seamless small diameter CastoTubes® offer many advantages:

  • Highly cost-effective
  • Absence of harmful linear weld joints
  • Exceptional wear resistance
  • Perfectly round cross section
  • Spiral welding minimises distortion
  • Lightweight for handling
  • Highest quality metal powder
  • Easy-to-join by welding or mechanical means

  • Powder HVOF spraying

    Cold spray process at supersonic particle speeds for maximum mechanical bonding means aeronautic quality coatings available at industrial prices, variety of materials and superhead carbides can be applied in thin layers.

    Polymer coatings (MeCaTec)

    Two-component products applied at ambient temperature means no thermal distortion of parts, very rapid and easy procedures. Protection for unweldable parts and/or complex geometry.