Technical Magnesia

A wide range of minerals for technical applications

Chem­i­cal indus­try, paint indus­try and indus­tri­al com­pa­nies for rub­ber, build­ing mate­ri­als and poly­mers all over the world rely on high-qual­i­ty min­er­als and the long­stand­ing knowl­edge of MAGNESIA experts. MAGNESIA min­er­als are per­fect as lubri­cants, binders or release agents. They are also used as pH-reg­u­la­tors and to con­trol vis­cos­i­ty. Raw mate­ri­als based on mag­ne­sium and cal­ci­um for deter­gents and fer­til­iz­ers, but also as com­po­nents of abra­sives, tan­ning agents and bleach­ing agents are part of the MAGNESIA range.

Indus­tri­al com­pa­nies are impressed by the unique prop­er­ties of ther­mal insu­la­tion and flame pro­tec­tion. MAGNESIA min­er­als also show proven use­ful­ness in ener­gy-inten­sive process­es such as vul­can­iza­tion, man­u­fac­ture of glass and ceram­ics as well as in the pro­duc­tion of steel.

Increase your com­pet­i­tive­ness with MAGNESIA, because we keep pop­u­lar core prod­ucts in stock so that our cus­tomers ben­e­fit from short deliv­ery times.

Minerals and technology: The perfect duo

The choice is yours: More than 100 dif­fer­ent mag­ne­sium oxides, mag­ne­sium hydrox­ides and mag­ne­sium car­bon­ates are avail­able and are suit­able for numer­ous tech­ni­cal areas of appli­ca­tion and func­tions, such as

ther­mal insulation


glass hard­en­ing

ther­mal protection



weld­ing flux

flame retar­dants

acid scav­enger

cor­ro­sion protection

elec­tri­cal insulation


High quality mineral compounds for technical challenges

Min­er­al com­pounds for tech­ni­cal appli­ca­tions are main­ly used in pow­der form, as fillers or addi­tives with a spe­cif­ic func­tion. We will be hap­py to send you detailed spec­i­fi­ca­tions, safe­ty data sheets and prod­uct sam­ples on request. The fol­low­ing exam­ples give you an insight into your options in the tech­ni­cal area:


Min­er­al com­pounds are required as addi­tives in a large num­ber of dif­fer­ent plas­tics. Among oth­ers, var­i­ous oxides are used as fillers, acid accep­tors or vis­cos­i­ty reg­u­la­tors in dis­tinct plas­tic for­mu­la­tions. Fur­ther­more, hydrox­ides are pop­u­lar absorbers and are used to opti­mize poly­mer com­pounds. Mag­ne­sium hydrox­ide in par­tic­u­lar is an acid- and halo­gen-free flame retar­dant that offers excit­ing advan­tages com­pared to alu­minum tri­hy­drox­ide. Oth­er cal­ci­um and mag­ne­sium com­pounds such as car­bon­ates, chlo­rides and stearates are both impor­tant addi­tives and nec­es­sary fillers.


Min­er­al com­pounds are par­tic­u­lar­ly pop­u­lar in the rub­ber and caoutchouc indus­try. In addi­tion to the usu­al nat­ur­al fillers, very spe­cial high-qual­i­ty syn­thet­ic prod­ucts are also in demand. Oxides, hydrox­ides, car­bon­ates and stearates, which are used for vul­can­iza­tion, acid reg­u­la­tion and as flame retar­dants, are very com­mon. Choose your favorite from a wide range of dif­fer­ent qual­i­ties that meet the require­ments of indi­vid­ual formulations.


Min­er­al com­pounds are par­tic­u­lar­ly pop­u­lar in the rub­ber and caoutchouc indus­try. In addi­tion to the usu­al nat­ur­al fillers, very spe­cial high-qual­i­ty syn­thet­ic prod­ucts are also in demand. Oxides, hydrox­ides, car­bon­ates and stearates, which are used for vul­can­iza­tion, acid reg­u­la­tion and as flame retar­dants, are very com­mon. Choose your favorite from a wide range of dif­fer­ent qual­i­ties that meet the require­ments of indi­vid­ual formulations.


Mag­ne­sium com­pounds play a cru­cial role in the paint­ing and print­ing indus­try. In addi­tion to cal­ci­um and mag­ne­sium car­bon­ate, which are used as fillers, a very fine mag­ne­sium oxide is required for print­ing inks based on toluene. Met­al soaps such as zinc stearate and cal­ci­um stearate are pop­u­lar addi­tives for paint and var­nish pro­duc­tion. A broad prod­uct port­fo­lio of dif­fer­ent qual­i­ties is available.


Mag­ne­sium com­pounds are pre­ferred raw mate­ri­als in the den­tal indus­try, espe­cial­ly in tra­di­tion­al invest­ment mate­ri­als and algi­nate mix­tures. Our cus­tomers receive a con­sis­tent­ly high qual­i­ty of high­ly pure fused mag­ne­sia for demand­ing use in invest­ment mate­ri­als. Due to our many years of expe­ri­ence with elec­tro­fused mag­ne­sium oxides, we are aware of the impor­tance of con­stant reac­tiv­i­ty, and we enable indi­vid­ual prod­uct spec­i­fi­ca­tions for each cus­tomer. Syn­thet­ic mag­ne­sium oxides and mag­ne­sium hydrox­ides are also used for the pro­duc­tion of algi­nate-based impres­sion materials.


Pure mag­ne­sium oxide with a low iron con­tent is an impor­tant raw mate­r­i­al in the man­u­fac­ture of spe­cial glass, enam­el frits and solar pan­els. Depend­ing on the area of appli­ca­tion, glass con­sists of mix­tures of basic oxides (e. g. sodi­um, potas­si­um, mag­ne­sium, cal­ci­um, bar­i­um or zinc oxide) and acidic oxides (e. g. sil­i­con diox­ide, boron tri­ox­ide, alu­minum tri­ox­ide or diphos­pho­rus pen­tox­ide). Our selec­tion of spe­cial oxides and car­bon­ates for this sen­si­tive area of appli­ca­tion have been estab­lished on the mar­ket for many years.


Whether mag­ne­sium, cal­ci­um, zinc or alu­minum: We offer var­i­ous min­er­als in dif­fer­ent qual­i­ty class­es for the chem­i­cal indus­try. Among oth­ers, mag­ne­sium oxides, hydrox­ides and car­bon­ates are used as start­ing mate­ri­als in the pro­duc­tion of oth­er mag­ne­sium com­pounds, e. g. in met­al soaps. Most min­er­al com­pounds play an impor­tant role in the man­u­fac­ture of inter­me­di­ates and aux­il­iary materials.


Mag­ne­sium oxides and mag­ne­sium hydrox­ides are includ­ed in most SMC-for­mu­la­tions to opti­mize homo­gene­ity and vis­cos­i­ty dur­ing pro­duc­tion. In the com­pound­ing process, cal­ci­um and zinc stearates are added as release agents. The selec­tion of prod­ucts offers the right prop­er­ties for the require­ments of this industry.


Mag­ne­sium oxide serves as a source of mag­ne­sium in feed addi­tives and calf milk. Mag­ne­sium com­pounds are also used as addi­tives in fertilizers.


Min­er­als are essen­tial for the pro­duc­tion of PVC. Mag­ne­sium oxides and hydrox­ides in par­tic­u­lar are impor­tant com­po­nents of PVC sta­bi­liz­ers. Very fine, high-puri­ty grind­ings with low iron val­ues are the main char­ac­ter­is­tics for the for­mu­la­tion of cables, pipes, foils and pro­files. Both nat­ur­al and syn­thet­ic qual­i­ties are used. In addi­tion, cal­ci­um com­pounds are tra­di­tion­al­ly used as fillers.


One advan­tage in the build­ing mate­ri­als sec­tor is the use of min­er­al raw mate­ri­als. Due to the ver­sa­tile prod­uct prop­er­ties, a wide­spread use is pos­si­ble. His­tor­i­cal­ly, the use of mag­ne­sium oxide and mag­ne­sium chlo­ride in a ratio of 3:1 is known for the pro­duc­tion of sorel cement. In oth­er cement for­mu­las, mag­ne­sium oxides or mag­ne­sium hydrox­ides opti­mize the reac­tion time and hard­en­ing. Due to the non-tox­ic and neu­tral prop­er­ties of mag­ne­sium and cal­ci­um, indus­try appre­ci­ates using these min­er­al com­pounds to pro­duce oth­er build­ing mate­ri­als, such as iso­lat­ing and insu­lat­ing mate­ri­als. Use the large selec­tion for a wide range of options in the build­ing mate­ri­als industry.


Tech­ni­cal ceram­ics pri­mar­i­ly com­pris­es ceram­ic mate­ri­als and prod­ucts for tech­ni­cal appli­ca­tions, such as: sil­i­cate ceram­ics, oxide ceram­ics and non-oxide ceram­ics. The use of mag­ne­sium-based fillers is an impor­tant part of the for­mu­la­tion and offers var­i­ous phys­i­cal and mechan­i­cal advan­tages. For dif­fer­ent areas of appli­ca­tion in high-per­for­mance ceram­ics, elec­tro­fused, dead-burned and syn­thet­ic mag­ne­sium oxides with high-puri­ty and in con­stant qual­i­ty are used.


Mag­ne­sium oxides are used as addi­tive in weld­ing pow­der formulations.


Adhe­sives are present in both organ­ic and inor­gan­ic com­pounds. Wet adhe­sives, dis­per­sion adhe­sives, hot melt adhe­sives, con­tact adhe­sives and reac­tive adhe­sives often con­tain met­al oxides, sil­i­cates and phos­phates as binders and sta­bi­liz­ers. Mag­ne­sium and cal­ci­um com­pounds are ide­al for imple­ment­ing spe­cial require­ments due to their neu­tral prop­er­ties. Cer­tain addi­tives, e. g. mag­ne­sium oxide or mag­ne­sium hydrox­ide, with dif­fer­ent activ­i­ties and sub­tleties achieve a pos­i­tive effect to improve adhe­sive prop­er­ties. Car­bon­ates and talc as fillers offer addi­tion­al advan­tages. Our large selec­tion of MAGNESIA prod­ucts allows a wide range of options for the adhe­sives industry.


Water treat­ment is the tar­get­ed change in water qual­i­ty. There are two imple­men­ta­tion options: On one hand, the removal of sub­stances from the water for clean­ing, de-iron­ing and desali­na­tion. On the oth­er hand, the addi­tion of min­er­als for dosage and acid­i­ty reg­u­la­tion (pH val­ue). Floc­cu­lants con­tain for exam­ple met­al salts and lime prod­ucts, such as mag­ne­sium oxide, mag­ne­sium hydrox­ide, mag­ne­sium chlo­ride, cal­ci­um oxide and alu­mini­um sul­fate. MAGNESIA offers a wide range of dif­fer­ent qual­i­ties for water treatment.


Mag­ne­sium oxide and mag­ne­sium hydrox­ide are part of the sul­phite pulp­ing process. In bleach­ing they are used as a source of mag­ne­sium and sta­bi­liz­er. As a func­tion­al filler, cal­ci­um com­pounds such as oxides, hydrox­ides or car­bon­ates improve the qual­i­ty of high-stan­dard paper.

Innovative technology with mineral compounds tailored to your needs

Our team of experts has many years of mar­ket expe­ri­ence and knows the range of com­pa­ra­ble prod­ucts. Use our knowl­edge for a pre­cise adjust­ment of your desired para­me­ters. Togeth­er we iden­ti­fy a selec­tion of pos­si­ble min­er­al com­pounds in the appro­pri­ate qual­i­ty and find the ide­al solu­tion for your tech­ni­cal challenge.

Ben­e­fit from impor­tant suc­cess fac­tors for your inno­v­a­tive products:

indi­vid­ual advice

reli­able deliv­ery times

short deci­sion-mak­ing paths

com­pre­hen­sive documentation

Contact us now

Chris­t­ian Block and the Tech­ni­cal Mag­ne­sia 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.