Material Specifications

 

Item

Value

Type

Isostatic Graphite Rod

Application

Metal casting ,machinery

Length

Customized size

Resistance (μΩ.m)

≤10μΩ.m

Bulk Density (g/cm³ )

≥1.85g/cm3

Porosity (%)

≤18%

Compressive Strength

≥90Mpa

 

When Resin Impregnated Carbon Is the Right Choice
 

Fluid Resistance:The impregnated structure reduces liquid penetration through the graphite body, making it useful for selected fluid-handling applications.

 

Improved Sealing Reliability:Lower accessible porosity helps reduce permeability when carbon components are used in sealing applications.

 

Chemical-Service Compatibility:Resin systems provide useful resistance to many aqueous and chemical environments. For aggressive chemicals, provide the chemical name and concentration before ordering.

 

Low-Friction Carbon Performance:The graphite substrate retains its characteristic lubricating behavior, suitable for selected sliding-contact applications.

 

Practical Choice for General Industrial Equipment:Compared with specialized metal-impregnated grades, resin impregnated carbon is a practical option for applications within a moderate temperature range where chemical resistance and sealing performance are key priorities.

 

Choosing the Right Grade: Resin vs. Antimony Impregnation

 

Engineering Requirement

Resin Impregnated Rods

Antimony Impregnated Rods

Primary Advantage

Acid & Chemical Resistance / Cost Savings

Extreme Wear & High Thermal Stability

Max Temperature Limit

180°C–200°C (up to 260°C for PTFE)

350°C (Air) / 500°C+ (Inert/Non-oxidizing)

Chemical Environment

Exceptional against acids, bases & solvents

Excellent in neutral, alkali, & hydrocarbon media

Mechanical Load / Hardness

Moderate to High Strength

Extra High Compressive Strength & Hardness

Cost Profile

Highly Economical

Premium Grade

 

Resin System Matters

Not all resin impregnated carbon materials should be treated as identical. The resin becomes part of the functional material, so its chemical and thermal characteristics directly affect the finished component.

 

Chemical Compatibility:Identify the liquid or gas that will contact the component. Provide chemical name, concentration, and operating temperature whenever possible.

 

Temperature:Allowable service temperature is influenced by the resin system—not the carbon substrate alone. Do not select based only on graphite's temperature resistance.

Pressure

Affects sealing performance and determines whether a particular impregnated grade is suitable.

Sliding Speed

For rotating seal rings, bearings, and bushings, consider shaft speed and friction together with pressure and temperature.

Mating Material

The material running against the carbon component influences friction, wear, and service life.

 

M106K Carbon Rod for Making Carbon Bush Ring Bearing

 

Resin Carbon for Mechanical Seal Manufacturing

If you manufacture mechanical seals, purchasing carbon rod blanks rather than finished rings gives you greater flexibility in production. The rod can be machined to your own OD, ID, thickness, groove, balance, face geometry, and dimensional tolerances.

 

We can supply the material as a machining blank—or evaluate supplying a semi-finished/finished carbon component per your drawing.

 

Typical Procurement Workflow
Carbon rod blank → Customer machining → Carbon seal ring / bearing / bushing → Assembly into pump or rotating equipment.

 

Quality Control

For impregnated carbon materials, consistency is more important than appearance alone. We control the production process from graphite substrate preparation through impregnation and final inspection.

Graphite Substrate

Selected according to the required material specification.

01

Impregnation

Controlled to achieve consistent penetration and stable material characteristics.

02

Dimensional Inspection

Critical dimensions checked per customer drawing for custom rods and machined components.

03

Material Verification

Density, porosity, compressive strength, electrical resistivity, dimensional accuracy, and other agreed parameters.

04

Pre-Shipment Inspection

Finished products inspected per agreed quality requirements before shipment.

05

 

What Buyers Should Check Before Ordering

For resin impregnated carbon, we recommend providing the following information:

 
 

For Seal Applications

Seal type, OD/ID/thickness, working pressure, temperature, shaft speed, medium, and mating material.

 
 
 

For Bearings & Bushings

Bearing/bushing dimensions, shaft diameter, load, rotational speed, lubrication condition, temperature, and environment.

 
 
 

For Chemical Applications

Chemical name, concentration, temperature, pressure, and continuous or intermittent exposure.

 

 

 
Packaging & International Delivery
 

Resin impregnated carbon rods are protected against impact and contamination during transportation.

01/

Packaging Options: Protective film, carton boxes, wooden cases, or customized packaging per order requirements.

02/

Shipping Methods: Express, air freight, or sea freight—selected by order quantity, destination, and required delivery schedule.

 

FAQ

 

 

Q: What is resin impregnated carbon mainly used for?

A: Typical applications include mechanical seal rings, carbon bearings, bushings, wear components and other industrial parts where reduced permeability, chemical resistance and carbon's low-friction characteristics are desirable.

Q: Is resin impregnated carbon suitable for mechanical seals?

A: Yes, it can be used for selected mechanical seal applications. The suitability depends on the working medium, pressure, temperature, shaft speed, mating material and seal design.

Q: Can you manufacture custom sizes?

A: Yes. Diameter and length can be customized according to the production requirement. For precision applications, we recommend sending a drawing so the appropriate blank dimensions and machining allowance can be evaluated.

Q: What is the MOQ?

A: For standard resin impregnated carbon rods, the starting order quantity can be 10 kg. Customized dimensions or special material requirements may have different minimum quantities.

Q: Can I order samples before mass production?

A: Yes. Small trial quantities can be arranged for new applications, allowing customers to evaluate machining characteristics and application suitability before placing a larger order.

Q: What is the standard lead time?

A: For standard resin impregnated carbon rod orders, the typical production lead time is 7–14 working days after specification and order details are confirmed. Customized products or larger production quantities may require additional production time.

Q: What payment methods do you accept?

A: The standard payment method for export orders is T/T. L/C at sight and other payment arrangements can be considered according to the order and customer requirements.

Q: What trade terms are available?

A: We can quote under common international trade terms including EXW, FOB, CFR and CIF.

Q: Can you provide a material test report?

A: Yes. Material and inspection documentation can be provided according to the agreed purchase specification. If your company requires a specific test standard or inspection item, please state it when requesting a quotation.

Q: How quickly can I receive a quotation?

A: For inquiries containing clear product specifications, dimensions and quantity, we aim to respond within 24 hours on working days. Providing your application and drawing can help us prepare a more accurate quotation without repeated specification confirmation.

With abundant experience, we are one of the most professional resin impregnated carbon rod manufacturers and suppliers in China. Please feel free to buy high quality resin impregnated carbon rod made in China here from our factory. Good service and quality products are available.

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