MAGNESIA hollow microspheres for innovative product optimization

Ben­e­fit from inno­v­a­tive prop­er­ties for your prod­ucts with Mag­Spheres® from MAGNESIA. Our MAGNESIA light­weight fillers are used, among oth­er things, when you want to pos­i­tive­ly influ­ence the heat dis­tri­b­u­tion in a room, give your prod­uct anti-slip prop­er­ties or cre­ate an insu­lat­ing effect. Thanks to var­i­ous types of hol­low bod­ies in select­ed grain size ranges, they can be used in both min­er­al and poly­mer-bound appli­ca­tions.

We would be hap­py to advise you on the diverse appli­ca­tions of our MAGNESIA Mag­Spheres® — just get in touch!

Lightweight fillers for a wide range of applications

Our MAGNESIA hol­low micros­pheres are used in a wide range of appli­ca­tions. From appli­ca­tions in med­ical research, aero­space, con­struc­tion chem­i­cals, insu­la­tion mate­ri­als, plas­tics and the envi­ron­ment. Inno­v­a­tive appli­ca­tions are also con­ceiv­able for wind tur­bines and in the off­shore sector.

Opti­miza­tion of pro­duc­tion processes

Sav­ing of bind­ing agents

Opti­cal sur­face effects

Fire pro­tec­tion applications

Heat & sound insulation

Den­si­ty & weight reduction

Refrac­to­ry applications

High-tem­per­a­ture applications


Optimize your products with MagSpheres®

MagSpheres®: Areas of application for your product portfolio

Hol­low micros­pheres from MAGNESIA give your prod­ucts spe­cial prop­er­ties that make them unique and impress your cus­tomers with their per­for­mance. We will be hap­py to send you detailed spec­i­fi­ca­tions, safe­ty data sheets and prod­uct sam­ples on request.

The fol­low­ing exam­ples will give you an insight into your possibilities:

Aerogel – MagSpheres® A‑Series


  • High tem­per­a­ture resistance
  • Ultra­light
  • High insu­la­tion in the small­est of spaces
  • High inter­nal sur­face area
  • Hydrophill & Hydropho­bic available

Areas of application

  • Fire pro­tec­tion
  • Coat­ing
  • Insu­la­tion plasters

Expanded glass granules — MagSpheres® B‑Series


  • recy­cled glass
  • Foam struc­ture
  • Col­or: Pure white & brown

Areas of application

  • Acoustic pan­els
  • Ther­mal insulation
  • Light­weight concrete

Hollow ceramic microspheres — MagSpheres® C‑Series


  • High tem­per­a­ture resistance
  • Refrac­to­ry
  • Col­or: Grey to off white

Areas of application

  • Con­struc­tion chem­i­cal use
  • Poly­mers
  • Paints & varnishes
  • Fillers
  • Refrac­to­ry foundry

Ceramic solid hollow spheres — MagSpheres® CS-Series


  • Very fine particles
  • High pres­sure resistance
  • Col­or: Brown

Areas of application

  • Con­struc­tion chem­i­cal application
  • Poly­mers
  • Sand­ing applications

Hollow glass spheres — MagSpheres® G‑Series


  • Borosil­i­cate glass
  • High pres­sure resistance
  • Col­or: Pure white / transparent

Areas of application

  • Con­struc­tion chem­i­cal use
  • Tool­ing boards
  • Seal­ing compounds

Litho/Pumice — MagSpheres® L‑Series


  • nat­ur­al material
  • Porous struc­ture
  • Col­or: Light brown

Areas of application

  • Car­ri­er
  • Poly­mers
  • build­ing materials

Perlite – MagSpheres® P‑Series


  • Par­tic­u­lar­ly low CO2 foot­print com­pared to oth­er perlites
  • Mul­ti­cel­lu­lar structure
  • Low water absorption
  • Col­or: Beige

Areas of application

  • Con­struc­tion chem­i­cal applications
  • Paints & varnishes
  • Poly­mers


With hol­low micros­pheres from MAGNESIA, your prod­ucts will reach new heights and make a name for them­selves on the mar­ket. Based on your ideas and defined para­me­ters, togeth­er we will find the ide­al solu­tion for your tech­ni­cal chal­lenge, for exam­ple with the fol­low­ing Mag­Spheres® series:

Mag­Spheres® B series: Expand­ed expand­ed glass gran­u­late made from recy­cled glass with a foam structure

Mag­Spheres® A series: Aero­gel, the light­est sol­id with the best insu­la­tion in the small­est space

Mag­Spheres® CS series: Very fine ceram­ic sol­id spheres for opti­mum pack­ing density

Mag­Spheres® L‑series: pumice, expand­ed nat­ur­al stone with a porous structure

Contact us now

Thomas Luck­ow and the Light­weight Fillers team will sup­port you with expert knowl­edge and find cus­tomized solu­tions for your prod­uct ideas.

Ask for detailed spec­i­fi­ca­tions, safe­ty data sheets and sam­ples.

MAGNESIA makes the difference – see for yourself

Transparency and partnership

Trans­paren­cy and partnership

The com­pa­ny empha­sis­es trans­paren­cy in the sup­ply chain and main­tains part­ner­ships with man­u­fac­tur­ing part­ners to ensure seam­less mon­i­tor­ing and trans­par­ent procurement.

Comprehensive service

Com­pre­hen­sive service

MAGNESIA offers not only high-qual­i­ty addi­tives, active ingre­di­ents and excip­i­ents, but also a com­pre­hen­sive ser­vice that strength­ens cus­tomer rela­tion­ships and facil­i­tates co-operation.

Short delivery times

Short deliv­ery times

MAGNESIA can guar­an­tee short deliv­ery times for cus­tomers thanks to its own ware­house and qual­i­fied exter­nal ware­house keep­ers, which is an impor­tant eco­nom­ic factor.

Expertise in various chemical elements

Exper­tise in var­i­ous chem­i­cal elements

MAGNESIA is not only a spe­cial­ist in min­er­als, but also an expert in var­i­ous chem­i­cal ele­ments, which offers our cus­tomers a wider choice of raw mate­ri­als and products.

Expertise and competence

Exper­tise and competence

The com­pa­ny has many years of exper­tise in var­i­ous mar­kets and is con­tin­u­ous­ly expand­ing its areas of exper­tise in order to offer its cus­tomers a deci­sive com­pet­i­tive advantage.

Trusted solutions

Trust­ed solutions

MAGNESIA offers proven ser­vices and strives to main­tain and strength­en cus­tomer con­fi­dence in con­sis­tent ser­vice, prod­uct qual­i­ty and safety.

Customised services

Cus­tomised services

The com­pa­ny offers cus­tomised ser­vice and con­sult­ing pack­ages to meet the dif­fer­ent require­ments of its cus­tomers and devel­op unique solutions.

Innovative solutions

Inno­v­a­tive solutions

MAGNESIA strives to be con­tin­u­ous­ly cre­ative and inno­v­a­tive in order to ful­fil cus­tomer require­ments and adapt to chang­ing mar­ket con­di­tions, includ­ing the use of dig­i­tal tech­nolo­gies for an opti­mal cus­tomer experience.

FAQ — Frequently asked questions

Vol­ume price! Due to the sig­nif­i­cant­ly low­er den­si­ty of our Mag­Spheres series com­pared to con­ven­tion­al fillers, the two can­not be com­pared in terms of price per kilo. For exam­ple, 22 tonnes of cal­ci­um car­bon­ate fit into a 40′ con­tain­er. Only 5 tonnes of the hol­low glass spheres!

Yes, you can. All series are chem­i­cal­ly inert.

Our Mag­Spheres P & B series are among the green­est. The raw mate­ri­als for the per­lite are extract­ed in Europe and blown in an elec­tric kiln. This is pow­ered by 100 % hydropow­er. The B‑series is made from 100 % recy­cled glass.

We have a broad port­fo­lio with a wide vari­ety of types. Please con­tact us and we will find a suit­able type from a new source.