Ceramic Fiber Bulk
Items | STD RCF Bulk | HP RCF Bulk | TEXTILE BULK | CHOPPED BULK | HZ RCF BULK |
Fiber Diameter(um) | 3~5 | ||||
Shot content(Φ≥0.212mm)(%) | ≤15 | ≤15 | ≤12 | (Φ≥100mesh)≤10 | ≤12 |
Chopped Length mm(inch) | 203(8) | 203(8) | 203(8) | 203(8) | 203(8) |
Al2O3 | ≥44 | ≥45 | ≥45 | ≥45 | ≥34 |
Al2O3+SiO2 | ≥96 | ≥99 | ≥99 | ≥99 | ≥84 |
ZrO2 | ≥15 | ||||
Fe2O3 | <0.5 | <0.5 | ≤0.3 | ≤0.3 | |
Na2O+K2O+Fe2O3 | <0.9 | <0.9 | <0.9 | <0.9 | <0.9 |
Classification Temperature(ºC) | 1260 | 1260 | 1260 | 1260 | 1430 |
Melting Temperature(ºC) | 1425 | 1575 | 1575 | 1575 | 1750 |
Thermal conductivity(W/m.k) | |||||
200ºC | 0.06 | 0.07 | 0.06 | 0.06 | 0.075 |
400ºC | 0.09 | 0.10 | 0.10 | 0.10 | 0.11 |
500ºC | 0.118 | 0.118 | 0.118 | 0.118 | 0.14 |
600ºC | 0.150 | 0.150 | 0.150 | 0.150 | 0.168 |
Color | White/even | ||||
Packaging | Plastic bag inside, woven bag outside or with Vacuum bag |
The data shown above is average results of test under standard procedures. There shall be some adjustment in normal mass manufacturing. For more information on the safety application or materials, please refer to the work practices and material safety data sheet.


GREEWOOL Ceramic Fiber Bulks are manufactured to be used as feedstock in manufacturing processes or other applications made of high purity composite raw materials, melted in the resistance furnaces and processed by blowing or spinning technology.
Classification Temperature: 1050ºC, 1260 ºC,1360ºC,1400ºC, 1430 ºC



Low thermal capacity
Low thermal conductivity
Excellent thermal stability
Heat resistance
Chemical resistance
Excellent sound absorption
Kiln Car filling
Chimney filling
Kiln roller filling
High temperature filter medium
Expansion joint filling
Feedstock blanket, board, paper and textile.
Feedstock for fiber spraying, castables and coatings




Your reliable partner for refractory materials.
As one of the leading company of refractory products in China, Greenergy Refractory& Insulation Material Co., Ltd enjoys close proximity to her customers, during long time in the market, we accumulate a lot of experiences in refractory materials for Steel plant, Boiler, Cement, Ceramics, Aluminum, Petrochemical and Metallurgy industries as well as other thermal treatment industries. We have a professional team for R&D, QOC, marketing and post services to our customers which in return help us gain plentiful of credit and reputation from the market.
We are committed to providing one-stop customized solution services from how-to-choose to final construction with varieties of refractory and insulation materials ranging from 500 ºC to 2000 ºC, including refractory ceramic fiber, bio soluble fiber, poly-crystalline fiber, insulating firebrick, refractory fire brick, monolithics and castables, microporous board, aerogel, calcium silicate boards and shapes, etc..
Our products have been highly praised by our customers from USA, UK, Italy, Germany, Turkey, India, UAE, Brazil, etc. We are striving to provide customers with comprehensive, one-stop and most suitable "energy saving" solutions to build a green-energy system.


