Bentonite-KORMIX mixes

//Bentonite-KORMIX mixes
Bentonite-KORMIX mixes2018-11-29T12:01:17+00:00

Bentonite-KORMIX mixes

Bentonite-Kormix mixes constitute a modern material for synthetic sand casting. The use of mixes eliminates the need to develop technologies for two different materials, i.e. bentonite and coal dust. Castings have noticeably better finish as their faces are free from burn-ons, scab or veins. Also, castings are very precisely copied, so there is no need for further working, which reduces the production cost.

Advantages of bentonite-KORMIX mixes:

  • facilitated dosage of moulding sand ingredients,
  • exact reproduction of cast surfaces,
  • reduced cost associated with the cleaning and finishing of castings,
  • improve the quality of castings,
  • improved OHS and fire prevention.

In the production of the mixes, we use SPECJAL bentonite which has high strength and heat-resistance.

Currently, ZGM ZĘBIEC SA offers three kinds of bentonite-Kormix mixes having the following parameters:

Item Parameter 75k 80k 85k
1 Compression strength in humid state [MPa], min. 0,068 0,070 0,072
2 Spill rate [%], max. 3,0 3,00 3,00
3 Swell factor [cm3/2g] min. 13 15 15
4 Content of lustrous coal carrier [%], min. 25,00 20,00 15,00
5 Loss on Ignition, min. [%] (relative to dry sand) 27 – 31 21 – 25 19 – 23
6 Water content [%], max. 8 – 12 8 – 12 8 – 12

Depending on individual requirements of our Customers, we can produce mixes with different proportions of bentonite and lustrous coal.

The properties of bentonite-Kormix mixes are tested as per PN-85/H-11003.

Packaging method

45 kg paper bags, stacked on Euro pallet 800 x 1200 mm Big Bag, approx. 900 kg Bulk in truck tanks Other types of packaging to be arranged


Detailed information can be obtained from our technical consultant:

Damian Drogosz
Implementation and Development Specialist

PHONE: +48 41 2767251
MOBILE: +48 606497245


Sylwia Sieczka
Implementation and Development Specialist

PHONE: +48 41 27 67 321
MOBILE: +48 608 665 346