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HVOF Spray Coating Services

Purtech's series 'D' coatings are applied through high velocity oxy fuel or HVOF thermal spray services. These coatings increase product performance and extend the service life of metal components. We provide HVOF coatings with low profiles, residual coating stress, and surface roughness. Our HVOF thermal spray operations provide both carbide and metal coatings with high bond strength plus negligible porosity. Purtech has the capability to produce coatings with porosities less than one percent.

Equipped with a variety of process equipment, we can handle coating of ODs, irregular, and flat surfaces, in addition to IDs as small as 6". Axial or radial application of coatings at velocities ranging up to 7,000 feet per second is also provided. Offered for a variety of applications requiring special characteristics for wear and durability, our HVOF coatings are ideal substitutes for chrome plating.


Field Services

We complement our production facility with the addition of on-site thermal spray coating capabilities. With over (10) years experience in field services.

Our capabilities have matured to include:

Portable Blasting Equipment
Dust Collection Equipment
Rotating Equipment
Rotating & Traversing Equipment
Portable Process Coating Equipment
but NOT limited to...

To insure your project is completed to the highest level of production quality while still on site.

Field Services exclude finish machining


Thermal Spray Coating
Robotic / Automated Production
Testing and Inspection
Field Services

Secondary Services

Diamond Grinding

Available Materials

And More

Lead Times

2-4 Weeks Typical
Same Day, Next Day, (1) Week Premium Services Available

Part Quantities

Prototype to Production

Part Dimensions (max/min as applicable)

10" ID Minimum
7 FT OD x 30 FT in Length
Field Services Available
XY 6 FT x 12 FT

Maximum Service Hardness Available

72 RC (for example)

Bond Strength

In excess of 12,000 PSI Available (for example)

Surface Finish

As low as 5-8 RMS is Possible (for example)

Minimum Surface Thickness Available

0.90" (for example)

Application Capabilities

Hand Spray
High Production Multi-Spindle Applications
Robotic Controlled

Equipment List

DJ Hybrid HVOF Systems

Testing Capabilities

Corrosion Testing
Mechanical Testing
Thermal Testing

Advantages of Hard Facing

A Repair Solution that Reduces Repair Costs
Decreases the frequency of Service and Maintenance
Extends the Product's Service Life
Increase Product Performance
Provides a Solution to Hostile Operating Conditions
Reduces the need for Replacements if Resurfaced


Ball Valves
Boiler Waterwall Tubes
Ceramic Coated Printing Roll
Kiln Lines
Male Disconnects
Rotary Type Pumps
Steam Electric Power Stations
Steam Generator Turbines
Tension Reels

Industries Served

Fluid Handling
Material Handling
Military / Government Projects
Power Generation
Pulp & Paper
And More

Purtech Inc. - Advancing Material Properties