Cyclosilazanes
Cyclic silazane monomers for ring-opening polymerisation, silicone rubber crosslinking and ceramic precursor synthesis. Two grades — methyl and vinyl functional.
The grades
Grades in this family. Specifications are confirmed in the product TDS.
EK-S8001
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Hexamethylcyclotrisilazane, CAS 1009-93-4
Cyclic silazane monomer for ring-opening polymerisation to high-molecular-weight polysilazanes; cyclics ≥95%.
EK-S8002
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Trimethyltrivinylcyclotrisilazane, CAS 5505-72-6
Vinyl-functional cyclic silazane monomer; trimer ≥95%, used as a battery electrolyte additive and polysilazane precursor.
Compare grades
How the grades in this family differ. Exact values are confirmed in each product TDS.
EK-S8001
Colourless liquid
Cyclics ≥95.0%
1009-93-4
Ring-opening to polysilazane; silicone rubber crosslinker
EK-S8002
Colourless liquid
Trimer ≥95.0%
5505-72-6
Battery electrolyte additive; vinyl-functional polysilazane
* Full specifications are confirmed in the product TDS — request the TDS library for exact data.
Key properties
Typical properties of this family — exact values depend on product grade and are confirmed in the TDS.
Ring-opening polymerisation
Route to high-molecular-weight polysilazanes.
Ceramic precursors
Starting material for SiC and SiCN ceramics.
Crosslinking
Crosslinker for silicone rubber and polyolefins.
High thermal stability
Stable cyclic structure, ≥95% cyclics.
Powder modification
Surface treatment of inorganic powders.
Two grades
Methyl and vinyl cyclosilazanes; full data per TDS.
Applications
Industrial challenges where this material family is typically evaluated.
Documents
Request the documents you need, or start a guided evaluation — everything is provided per product grade.
FAQ
Common questions about this material family.
What is the difference between EK-S8001 and EK-S8002?
EK-S8001 is hexamethylcyclotrisilazane and carries methyl groups only. EK-S8002 is trimethyltrivinylcyclotrisilazane and adds vinyl functionality, which opens up radical and hydrosilylation chemistry. Exact specifications are given in each product TDS.
Can I test the material before committing to volume?
Yes — sample support is available for qualified B2B projects after a short technical review.
How should the material be handled?
Both grades hydrolyse readily — contact with moisture forms silanol and releases ammonia. Close containers immediately after use and work in a well-ventilated area. Both are stored and transported as non-dangerous goods.
Are these ready-to-use products?
No. Cyclosilazanes are monomers supplied as raw material for polymerisation, crosslinking and powder modification — not as a finished coating.
What is the minimum order quantity?
MOQ depends on the grade and packaging format. Standard packaging is 25 L and 200 L drums, with custom formats on request — to be confirmed with our team for your case.
Send request
From first enquiry to qualified bulk supply — send your requirements below.
01
Send requirement
Application, substrate and performance target.
02
Get recommendation
Suitable material family and product grade.
03
Receive TDS/SDS, catalog & sample
Documentation and sample for evaluation.
04
Test material
Validate on your substrate and process.
05
Confirm & bulk supply
Specification agreement and ongoing supply.
About cyclosilazanes
Cyclosilazanes are six-membered rings of alternating silicon and nitrogen atoms. Opening the ring yields high-molecular-weight polysilazanes, which is why these grades serve as the starting material for polysilazane resins and for SiC and SiCN ceramics. They also act as crosslinkers for silicone rubber and as modifiers for inorganic powders.
Typical evaluation starts with the target polymer system, the functionality required and the process temperature.