Pure Copper Powder [-200+400]

Understanding Pure Copper Thermal Spray Powder

Copper powders are widely used in surface engineering to deposit coatings with high electrical and thermal conductivity. The -200+400 mesh cut represents a particle size range that passes through a 200-mesh screen (74 microns) and is retained on a 400-mesh screen (37 microns). This specific fraction is preferred by many thermal spray applicators because it flows smoothly through powder feeders, melts evenly in the flame or plasma jet, and builds up dense, well-bonded coatings.

Typical applications include conductive tracks on non-conductive substrates, anti-seize or anti-galling coatings on threaded fasteners and sliding components, and corrosion-resistant undercoats in multi-layer systems. The powder's purity directly influences coating conductivity and oxidation resistance, making grade verification a critical step before production use.

Process Compatibility and Selection Guidance

This copper powder is suitable for evaluation across common thermal spray processes. HVOF (High-Velocity Oxy-Fuel) spraying can produce very dense, low-oxide coatings with high bond strength. Plasma spraying offers flexibility for a wider range of substrate materials and part geometries. Flame spraying remains a cost-effective option for less demanding applications or field repairs. The optimal process depends on your specific coating requirements, part size, and production environment.

When selecting a copper powder, consider the following points:

• Mesh verification: Confirm that the -200+400 cut matches your powder feeder and gun setup. A different particle size distribution can cause feeding problems or inconsistent coating quality.
• Purity and chemistry: Request a certificate of analysis to verify copper content and trace element limits. This is especially important for conductive or food-contact applications.
• Pack size and handling: Choose a pack size that balances your consumption rate with shelf life. Our 5 kg and 10 kg tins are convenient for trials and small-batch work, while 25 kg pails suit regular production volumes.
• Storage: Store copper powder in a cool, dry environment. Keep containers sealed when not in use to prevent moisture pickup and oxidation, which can degrade flowability and coating performance.

About SPA2Z — Your Source for Pure Copper Powder

SPA2Z supports industrial buyers, applicators, and distributors who need reliable metallic powders for surface preparation and coating projects. We understand that sourcing the right copper powder means matching chemistry, particle size, and packaging to your specific thermal spray process. Our team helps you verify grade compatibility, navigate pack size options, and obtain a clear, no-obligation quotation.

Whether you are setting up a new coating line, qualifying an alternative powder source, or replenishing production stock, we focus on practical support: answering technical questions, confirming available specifications, and ensuring you receive the product information needed to make a confident purchasing decision.

• Grade and specification verification on request
• Standard pack options: 5 kg tin, 10 kg tin, 25 kg pail
• Support for HVOF, plasma, and flame spray process evaluation

For a current price, a certificate of analysis, or to discuss your application requirements, request a quotation today.