Lightweight Fillers

Breakthrough product applications with Lightweight fillers

Which capa­bil­i­ties would you like to trans­fer to your prod­uct? Do you envis­age dis­tinc­tive prod­uct prop­er­ties, but the right ingre­di­ent or medi­um is miss­ing? Then the MAGNESIA hol­low micros­pheres might be the right solu­tion for your field of application.

Under the trade­name Mag­Spheres®, MAGNESIA sup­plies light­weight fillers for use in med­ical research, aero­space, con­struc­tion chem­istry as well as for insu­la­tion mate­ri­als, plas­tics and envi­ron­ment. Var­i­ous types of hol­low bod­ies are avail­able in select­ed grain size ranges and can be used min­er­al- and polymer-bound.

Which prod­uct idea would you like to imple­ment? With the micro hol­low spheres Mag­Spheres® from MAGNESIA you get much clos­er to your target.

Ceramic hollow microspheres: The innovation boost for your product developments

You can bal­ance heat dis­tri­b­u­tion in rooms or give anti-slip prop­er­ties or 3D effects to your prod­uct, wher­ev­er these are advan­ta­geous. Anoth­er pos­si­bil­i­ty is to use Mag­Spheres® for ther­mal insu­la­tion and foot­fall sound insu­la­tion or reduc­ing noise smog at work and pri­vate. Inno­v­a­tive appli­ca­tion is also con­ceiv­able for wind pow­er plants as well as in the off-shore area.

Ben­e­fit from inno­v­a­tive prop­er­ties for your prod­ucts with Mag­Spheres® from MAGNESIA for

opti­cal sur­face effects

high tem­per­a­ture and refrac­to­ry applications

fire pro­tec­tion applications

ther­mal insu­la­tion and foot­fall sound insulation

den­si­ty and weight reduction

MagSpheres® impress with quality and technical ingenuity

Our team of experts has many years of mar­ket expe­ri­ence and sup­ports you in opti­miz­ing your prod­uct devel­op­ments. With the hol­low micros­pheres from MAGNESIA your prod­ucts will reach new spheres and make a name for them­selves in the mar­ket. Based on your ideas and defined para­me­ters, we will work togeth­er to find the ide­al solu­tion for your tech­ni­cal chal­lenge from for exam­ple the fol­low­ing Mag­Spheres® series:

The Mag­Spheres® C series are ceram­ic hol­low micros­pheres that serve as func­tion­al light­weight fillers. They are char­ac­ter­ized by their very high tem­per­a­ture resis­tance and mechan­i­cal stability.

The hol­low glass spheres of the Mag­Spheres® G series stand out due to their low den­si­ty with max­i­mum com­pres­sion strength. In addi­tion, the Mag­Spheres® G series impress­es with its excel­lent hydrolyt­ic resistance.

The per­lites of our Mag­Spheres® P series are dif­fer­ent from con­ven­tion­al­ly pro­duced per­lites. Through a new man­u­fac­tur­ing process, they are built up almost closed-cell with­out the use of addi­tion­al raw mate­ri­als. This results in per­lites that are char­ac­ter­ized by low water absorption.

All Mag­Spheres® series are chem­i­cal­ly inert raw mate­ri­als. This means that all types of Mag­Spheres® can be indi­vid­u­al­ly com­bined with each oth­er based on your require­ments — there are no mutu­al chem­i­cal reac­tions. So, with regard to the prod­uct prop­er­ties of the dif­fer­ent Mag­Spheres® series, we will advise you accord­ing to the mot­to “Com­bine the best of all worlds”.

MagSpheres®: Diverse areas of application for your product portfolio

With micro hol­low spheres from MAGNESIA your prod­ucts get spe­cial prop­er­ties that make them unique and con­vince your cus­tomers with an extra­or­di­nary per­for­mance. We will be hap­py to send you detailed spec­i­fi­ca­tions, safe­ty data sheets and prod­uct sam­ples on request. The fol­low­ing exam­ples may give you an idea of the appli­ca­tion scope:



  • use of Mag­Spheres® G- or C‑series


  • coolants and abra­sive par­ti­cles adhere longer to surface
  • thus, high­er effec­tive­ness and faster results
  • coars­er types are an advan­tage
  • respec­tive hard­ness of used sys­tem must be observed

Acoustic isolation


  • use of Mag­Spheres® P- or C‑series


  • using light­weight com­po­nents, the sound, but also the foot­fall sound in the room is mas­sive­ly reduced
  • promis­ing appli­ca­tion for auto­mo­tive sec­tor with option of a “Cus­tom Made” type tai­lored to the needs of end user

Use in construction chemistry


  • use of Mag­Spheres® P- or C‑series
  • for every­day prod­ucts — often made with ceram­ic balls, glass balls or min­er­al balls
  • Exam­ples: tile adhe­sive, pre­cast con­crete parts, dec­o­ra­tive ele­ments, coat­ings that reduce elec­tric smog


  • active embod­i­ment in cemen­ti­tious applications
  • appli­ca­tion ben­e­fits from ball bear­ing effect
  • arti­fi­cial­ly gen­er­at­ed radi­a­tion that is harm­ful to health (e.g. smart­phone) is reduced

Thermal Insulation


  • The use of our Mag­Spheres® P or C series is ide­al for ther­mal insulation


  • Opti­mal ther­mal insu­la­tion with simul­ta­ne­ous acoustic insulation
  • Low­er con­struc­tion costs and nar­row­er walls
  • Influ­ence on heat distribution
  • Sig­nif­i­cant­ly low­er fire load than EPS insulation



  • Mag­Spheres® C & G Series
  • Exam­ple appli­ca­tion: Inte­ri­or & engine com­part­ment insulation.
  • Opti­cal & hap­tic mod­i­fi­ca­tion of the fittings


  • Weight reduc­tion
  • Insu­la­tion
  • Mod­i­fi­ca­tion of look & feel
  • Sav­ing of binder



  • For the pro­duc­tion and pro­cess­ing of ceram­ic prod­ucts, we rec­om­mend the use of the Mag­Spheres® C or G series


  • Crack sup­pres­sion
  • Less shrink­age dur­ing firing
  • Weight reduc­tion of your end prod­ucts. Ceram­ic also goes light



  • In the field of poly­mers, the use of Mag­Spheres® C & G series is suitable


  • Sav­ing of binder
  • Weight reduc­tion
  • Improved insu­la­tion
  • Opti­mize the flow abil­i­ty of the molten mass

Paint & Varnish


  • Use our Mag­Spheres® C & G series to impart spe­cial prop­er­ties to paints and coatings


  • Mod­i­fi­ca­tion of the look & feel
  • Cost sav­ings due to the use of less binder
  • Low ther­mal conductivity
  • Can reflect infrared rays (increase com­fort factor)

Stockmeier Chemie — Partner in Paints & Coatings

Togeth­er with Stock­meier, we are a strong team of experts who will be hap­py to assist you. In the field of paints and coat­ings Stock­meier and espe­cial­ly their sub­sidiary Basser­mann will be at your disposal.

Filling compounds


    • The Mag­Spheres® C & G series is suit­able for use in filler compounds


  • Bet­ter grindability
  • Improved process­abil­i­ty, ball bear­ing effect
  • Less shrink­age

Refractory & Foundry


  • For refrac­to­ry appli­ca­tions as well as in the foundry indus­try you can use our Mag­Spheres® C‑Series


  • Weight reduc­tion of your end products
  • Defined cool­ing behavior
  • Improved sur­faces
  • Less sur­face finishing

Stockmeier Chemie — Partner in Refractories & Foundry

Togeth­er with Stock­meier, we are a strong team of experts who will be hap­py to assist you. In the field of refrac­to­ry and foundry appli­ca­tions Stock­meier and espe­cial­ly their sub­sidiary Basser­mann will be at your disposal.

Contact us now

Thomas Lukow and the Light­weight Fillers team sup­ports you with tech­ni­cal know-how and finds tai­lor-made solu­tions for your prod­uct idea. Also ask for detailed infor­ma­tion about spec­i­fi­ca­tionssafe­ty data sheets or mate­r­i­al sam­ples.

Supplier qualification as an integrated process

As part of the qual­i­fi­ca­tion process of our sup­pli­ers, we car­ry out appro­pri­ate audits and ensure that require­ments are met. Even after suc­cess­ful qual­i­fi­ca­tion, com­pli­ance with legal require­ments is reg­u­lar­ly assessed. Our inte­grat­ed process ensures that all changes at sup­pli­er facil­i­ties or to the prod­uct that could affect man­u­fac­tur­ing or test para­me­ters are checked and approved before implementation.

MAGNESIA makes the difference

MAGNESIA not only offers excel­lent addi­tives, active ingre­di­ents and excip­i­ents, but also a com­pre­hen­sive ser­vice that our long-term cus­tomers par­tic­u­lar­ly appre­ci­ate. Qual­i­ty man­age­ment, doc­u­ment man­age­ment and the nec­es­sary cer­ti­fi­ca­tions and audits of sup­pli­ers and prod­ucts are an inte­gral part of our ser­vice. Furthermore

fixed con­tact per­sons make the coop­er­a­tion a real part­ner­ship for both sides, which ben­e­fits from work­ing hand in hand. In short: We think along with you, and the up-to-date­ness of the doc­u­ments required by qual­i­ty man­age­ment is proac­tive­ly provided,

one of our suc­cess prin­ci­ples is called “trans­paren­cy”. We are hap­py to com­ply with the request of our man­u­fac­tur­er part­ners to dis­close the ori­gin of sub­stances and mate­ri­als ordered,

seam­less mon­i­tor­ing of the sup­ply chain is guar­an­teed, in par­tic­u­lar to meet our due dili­gence oblig­a­tions as min­er­al trad­er and to make the pro­cure­ment process and stor­age as trans­par­ent as possible.

short deliv­ery times are a cru­cial fac­tor for our cus­tomers. We, there­fore, either use our own ware­house for stock­ing pur­pos­es or a suit­ably qual­i­fied and mon­i­tored exter­nal ware­house keeper,

MAGNESIA, as a reli­able part­ner, safe­guards the intel­lec­tu­al prop­er­ty rights of your prod­ucts. We treat your trade secrets with absolute con­fi­den­tial­i­ty and the pro­tec­tion of cus­tomer data is one of our values.