sometimes called microsphere(float ash, micro sphere fly ash, hollow cenosphere) is a by-product from coal ash( fly ash ). These hollow light weight spheres are produced around the world. Most all of the cenospheres are recovered from fly ash pools from the coal fired power plant(thermal plants) . The color varies from gray to almost white and their density is about 0.6–0.9 g/cm³, all these property give it a widely application for insulation,refractory,oil drilling,coating,construction use.


3,Bulk Density: 0.37-0.5
4,Float Ratio: min 95%
5,PH value: 7-8
6,Moisture: 2%
7,Refractoriness: 1100-1660°C

1, Company Introduction

We WUHAN NEWREACH CHEMICAL CO.,LTD , have been dealing non-metallic powders for nearly 10years, with a strict quality control and sincere service, our cenosphere has enjoyed a popular market in Australia,New Zealand, USA,Japan,Korea,Thailand etc, also hope to serve you this time with our products and service.

2, Specifications

Specs/Grade Grade1 Grade2 Grade3 Grade4 Grade5
True Density(g/cc) 0.6-0.7 0.7-0.85 0.85MAX 0.8-0.9 0.9-1.0
Bulk Density(g/cc) 0.37-0.40 0.38-0.41 0.39-0.42 0.40-0.43 0.45-0.5
Compress Strength(Mpa) 20-40 40-60 40-80 40-80 50-100
Size(micron) 40-300 40-300 40-300 40-300 40-300
Float Ratio 95%min 95%min 95%min 95%min 95%min
PH 7-8 7-8 7-8 7-8 7-8
Thermal Conductivity(w/m.k) 0.036-0.060 0.036-0.060 0.036-0.060 0.036-0.060 0.036-0.060
Refractoriness 1100-1660°C 1100-1660°C 1100-1660°C 1100-1660°C 1100-1660°C
Color Grey/White Grey/White Grey/White Grey/White Grey/White
Moisture 2%MAX 2%MAX 2%MAX 2%MAX 2%MAX
Kraft Packing 20KG 20KG 20KG 25KG 25KG
Packing-2 400KG 400KG 450KG 500KG 500KG

3, Typical Applications

Oil well and geo thermal cementing
Thermal insulation paints
Light weight concrete
Space craft insulation
Potting of electrical transformers and coils
Foundry and refractory

Packaging & Delivery

Packaging Detail: By 25kg kraft bag or 500kg jumbo bag (on pallets) for shippment.
Delivery Detail: Within 7-15days after the deposit
Cenosphere/Fly Ash/Microspheres Powder

Cenosphere/Fly Ash/Microspheres Powder

Cenosphere/Fly Ash/Microspheres Powder
Miss. Ashley E-mail: cenosphere@ymail.com
Tel: +86 27-89777277 ; +86 27-85731200
Fax: +86 27-89777077 ; +86 27-85561557
Address: No.16 Yangluo Industry Park Wuhan City Hubei province China Zipcode:430000