Sealer

Coating sealant is a dedicated penetrating pore-sealing material for thermal spray post-treatment processes. It adopts a solvent-free inorganic formula system, which can deeply fill the micro-pores inside thermal spray coatings. Without forming an additional surface film or altering workpiece dimensional accuracy, it significantly improves the coating's corrosion resistance, electrical insulation, sealing performance, wear resistance and high temperature stability.
Suitable for metal, ceramic and cemented carbide coatings prepared by plasma spraying, HVOF spraying, arc spraying and other processes, the product is available in multiple temperature resistance grades to match different coating thicknesses, densities and working condition requirements. It is a core supporting material for enhancing the service performance of thermal spray coatings and extending the service life of work pieces.
  • Detail
  • Parameters


Product ModelMaximum Service TemperatureTypical Penetration DepthPackaging SpecificationTypical Applications
VS3500350°C250–500 μm for ceramic coatings200–300 μm for cemented carbide coatings18kg / canGeneral ceramic and metal coating sealing under medium-temperature conditions; universal corrosion protection and sealing scenarios
VS5500550°C250–500 μm for ceramic coatings200–300 μm for cemented carbide coatings4kg / canMedium-high temperature coating sealing; compatible with most HVOF and plasma spray coatings
VS5510550°C250–500 μm for ceramic coatings200–300 μm for cemented carbide coatings500g / canSmall-batch workpiece and precision component sealing under medium-high temperature conditions; laboratory testing and sample processing
VS6000600°C250–500 μm for ceramic coatings200–300 μm for cemented carbide coatings4kg / canHigh-temperature coating sealing; suitable for ceramic and cemented carbide coatings under long-term high-temperature service



Core Performance Advantages

First:

Deep Penetration & Reliable Sealing The product delivers excellent pore permeability and uniformly fills internal micro-pores of coatings. Under conventional working conditions, the effective penetration depth reaches 250–500 μm for alumina and chromia ceramic coatings, and 200–300 μm for tungsten carbide and other cemented carbide coatings, meeting the sealing requirements of most industrial thermal spray coatings. It supports natural penetration, vacuum-assisted penetration and immersion application methods for stable and consistent sealing performance.

Second:

Multi-Grade Temperature Resistance Coverage The full series covers a temperature resistance range from 350°C to 600°C with multiple graded models, matching long-term service temperature requirements of different working conditions. It provides targeted solutions from general medium-temperature corrosion protection to high-temperature condition reinforcement, adapting to diverse thermal spray application scenarios.

Third:

No Surface Film & Dimensionally Stable With a penetrating sealing formulation, it only fills internal pores of the coating without forming an extra continuous film on the workpiece surface. After sealing, the original appearance and surface morphology of the coating are maintained, and workpiece dimensional accuracy remains unchanged. No secondary grinding is required, and the surface roughness and assembly tolerance of the coating are not affected.

Fourth:

Comprehensive Coating Performance Enhancement After sealing, it effectively blocks corrosive media and conductive media from penetrating into the coating interior and substrate interface, significantly improving the coating's insulation, corrosion resistance, sealing performance, wear resistance and high temperature stability, and greatly extending the service life of workpieces under harsh conditions such as corrosion, electrification and high temperature.

Fifth:

Flexible Application AdaptabilityIt can be applied by brushing, spraying, immersion, vacuum impregnation and other methods, adapting to processing requirements of workpieces with different sizes and structures. The product features stable storage and simple operation, suitable for both industrial mass production and single-piece maintenance processing scenarios.


Typical Application Fields

First:

Thermal spray coating post-treatment: Micro-pore sealing reinforcement for various thermal spray coatings such as tungsten carbide coatings, ceramic coatings and metal-based coatings, to improve the comprehensive service performance of coatings

Second:

Industrial equipment corrosion protection & sealing: Coating sealing for hydraulic valve plates, ball valves, rollers, pump bodies and other components, to enhance corrosion resistance, medium erosion resistance and sealing performance

Third:

Insulation coating performance reinforcement: Insulation performance improvement for insulated bearings, electrical components and semiconductor tooling, to ensure electrical insulation reliability

Fourth:

Energy & high-end equipment: Coating sealing for wind power components, steam turbine parts and high-temperature tooling, adapting to high-temperature service conditions

Fifth:

Precision manufacturing: Coating sealing for precision components in semiconductors, optoelectronics and medical devices, meeting sealing, cleanliness and performance stability requirements


Customization & Supporting Services

Multiple packaging options: Packaging specifications from 500g to 18kg are available, adapting to different dosage requirements of laboratory testing, small-batch processing and large-scale mass production

Application technical support: Sealing process selection guidance and construction suggestions can be provided according to customer coating types and working condition requirements, to ensure sealing effect

Full-process supporting supply: One-stop supply of full-process thermal spraying consumables including high temperature resistant masking tape, sandblasting masking tape, high temperature resistant masking compound and diamond lapping belts, providing integrated thermal spraying consumable solutions


If you want to learn more product details, please contact Jiangxi Velavision.


Grade
VS
Brand
Velavision
Home
Customer service