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Ultracast NSi is a highly stable binder with polymeric and biocidal additives (made in Russia) for the manufacture of ceramic molds in the manufacture of castings by investment casting, used as an alternative replacement of ethyl silicate binders.
The suspension prepared with Ultracast NSi binders has stable rheological characteristics, a long "survivability" cycle and minimal requirements for keeping the suspension in working order. Increased resistance to cracking during the application of the refractory coating and removal of the wax model mass from the cladding is achieved due to the modified copolymer incorporated into the binder.
Technopark company has developed three modifications of binder Ultracast NSi :
Technical characteristics of binder Ultracast ® NSi
Indicator name |
NSi |
Nsi-U |
Nsi-P |
KNSi |
KNSi-U |
---|---|---|---|---|---|
Hydrogen ion concentration (рН), units. |
9,0-11,0 |
9,0-11,0 |
9,0-11,0 |
3,5-5,0 |
3,5-5,0 |
Presence of a wetting agent |
— |
+ |
— |
— |
+ |
Mass fraction of silicon dioxide, % |
24,5-25,5 |
26-27 |
24-25 |
24,5-25,5 |
26-27 |
The diameter of particles, nm, not less |
8,0 |
9,0 |
9.0 |
10 |
10 |
Polymer content, % |
— |
2 |
6 |
7 |
2 |
Presence of biocides |
+ |
+ |
+ |
+ |
+ |
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