JPGRAPHITE Graphite Machining


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Soft Felt Or Hard Felt Insulation Material

Soft felt is a flexible insulating material for high temperature applications in inert or vacuum atmospheres, consisting entirely of carbon fibers.

Soft Felt Or Hard Felt Insulation Material

Soft Felt Or Hard  Felt Insulation Material

Flexible, Antioxidant and High Efficiency.

Soft felt is a flexible insulating material for high temperature applications in inert or vacuum atmospheres, consisting entirely of carbon fibers.

The stability of the felt is established during the first production step, the needling process, and throughout all subsequent high temperature steps. Furthermore, soft felts can be used in energy storage devices like redox flow batteries due to their controlled internal structure and electrical conductivity.

Viscose Graphite Felt Domestic Graphite (PAN) Domestic Carbon Felt
Bulk Density (g/cm3) 0.11±0.01 0.14±0.01 0.15±0.01
Compressive Strength (MPa) 0.14~0.30 0.15-0.30 0.15-0.30
Thermal Conductivity (W/m·K) 0.06~0.12 0.12-0.18 0.15-0.20
Carbon Content (%) >99.9 >99 >95
Ash (%) <0.02 <0.05 <0.2
Moisture Absorption Rate (%) <1.0
Maximum Use Temperature (℃) ≤3000 ≤3000 ≤2800
Processing Temperature ≥2000 ≥2000 1000


Typical properties of materials

Very low thermal conductivity at maximum temperature

low heat capacity

Suitable for very high temperatures

pure carbon fiber


Soft Felt Or Hard Felt Insulation Material - ADVANTAGE

Soft Felt Manufacturing

The base material for the production of carbon and graphite soft felts is a felt made of needle-punched cellulose fibers. These are processed into carbon soft felt by heat treatment at 800-1,000°C. If these felts are processed at temperatures above 2,000°C, the carbon fibers increasingly take on a graphite-like structure, the so-called "graphite soft felt", rather than giving a true graphitic structure.

All soft felt can be easily cut with a knife and scissors, so it is easy to adapt to the desired shape.


JPGRAPHITE is a professional carbon graphite manufacturing company with over 20 years of experience. We have complete production processing and professional CNC equipment's and advanced tech processes to produce carbon graphite products.

We accept customized carbon graphite product orders and provide tech consulting with the product application. We mainly offer graphite crucibles, graphite rotors, graphite block, graphite plate, graphite rod, graphite heating parts, graphite pipes.

We severing industries like the Metallurgical and chemical industry, High-temperature heat treatment, glass, ceramic industry, Environmental water treatment industry, Bearing seal applications. We are a manufacturer; we do not have an extra service fee. We export our products worldwide.



Standard export carton and plywood case.

Customized shipping mark.

QC department will check in case if the packing method is safe enough or not.


Door to door service by courier like DHL , UPS etc. , usually 3 ~ 4 days to arrive.

By air to the air port, it takes about 5 ~ 7 days to arrive usually.

By sea to the sea port, it takes about 15 ~ 30 days to arrive usually.


Q1: Do you have a product catalog?

A: Yes, please send your request to, we will reply as soon as we see it.

Q2: Do you have clear product pictures?

A: Yes, friends, we can provide different detailed pictures of this product.

Q3: What is the quality of this component?

A: We are ISO9001 certified products, and 100% quality inspection is carried out on shipping.

Q4: How long does it take to make? How long does it take to ship?

A: Our production time is determined by the amount and complexity of customization. It will be shipped within 15-30 days after the production is completed (including the quality inspection time before delivery).

Q5: Can we test samples first?

A: Of course you can, but you need to pay for the sample cost and shipping costs.