sepiolite for friction materials filler

definition

Sepiolite is a kind of clay mineral of hydrated magnesium silicate.

Chemical formular

Mg8(H2O)4(Si6O15)2(OH)4`8H2O[1] [6][12] 

Main chemical composition

SiO2

MgO

54~60%

21~25%

Physical properties

appearance

White,non-transparent,

smooth,sticky

hardness

2~2.5

Specific gravity

1~2.3

High temperature resistance

The structure doesn’t change 

at 350 degree celsius.Max. 

High temperature resistance 

up to 1500~1700 degree 

celsius

adsorbability

Adsorbing water of 150% of 

self-weight

Products specification

Sepiolite powder

320,200,100,20-40mesh or as per client’s 

request

Sepiolite fiber

0.3-0.6mm,1-3mm,2-4mm,

4-8mm or as per client’s 

request

feature

100% natural,harmless & odorless,without radioactive elements,

excellent adsorbability, decoloring, dispersity,thermal stability, 

moulding,thermal insulation and salinity resistance

application

application field

Main purpose

Oil drilling

Used in special slurry of 

salinity resistance and high 

temperature resistance

Grease & petroleum refining

Adsorption agent,decoloring 

agent,filter agent

brewing & chemicals

molecular sieves used in 

chemical,sugar and wine 

industry

medicines

ion-exchange agent,

decoloring agent,brightening 

agent

ceramic

enamel

enviromental protection

detergent & adsorbent for 

particle

foundary

binder for molding sand

selicate

superior material of special 

high temperature coating 

with high magnesium 

refractory material

plastics

forming agent,decoloring 

agent

construction

Deadening,heat insulation 

material and coating

agriculture

Pesticide,carrier material of 

soil sterilization agent,

preparation of special 

material,preparation of animal

medicament,bed down the 

livestock

rubber

Filter for special purpose

Welding rod

ingredients of welding flux

Light industria,textile & 

chemical industry

Catalyst,suspending agent,

thickening agent,

thixotropic agent

cigarette

Filter material

Paper for

special use

catalytic carrier and adsorbent

modern science of

national defence

Ceramic parts of automic 

energy,rocket,sattelite etc.

artware

Carving crafts,decoration and 

articles for daily use

packing

25kg/bag or as per client’s request