Expanded perlite is a natural acidity glass lava nonmetallic minerals,including perlite,rosin rock and obsidian,only three different crystallization water content.in 1000-1300 ℃ high temperature under the condition of it's rapid expansion volume 4-30times,therefore,collectively known as expanded perlite. General requirements expansion ratio >7-10 times (black obsidian >3 times,available), silicon dioxide by about 70%. Don't need separation,crushing,screening.
Can be used as a filtering agent,catalyst,molecular sieve and rubber,the carrier offertilizers and pesticids. Widely used in construction,metallurgy,petroleum,macbinery,light industry,water and electricith,casting,medicine,food,agriculture,forestry and gardening departments and so on.Often temperature coefficient of thermal conductivity of 0.0245-0.048w/ (m K), high temperature heat conduction coefficient is 0.058-0.175W/ (m K), low heat conduction coeffient is 0.028-0.038 W / (m K),the highest temperature is 800℃. Used as efficient insulation,cold insulation filling material.
Loss on Ignition
Our factory located in the largest deposits which have been developed-- Shangtianti in Henan province.We have the advantage to give you the best quality perlite.
We have a variety specifications for our products, you can customized the granularity if you need.
The sample of less than 1kg can send to you for free if needed,you only need to pay the express fee.
If you are interested in our products,pls feel free to contact me.