Silane Crosslinkers | Acetoxy Silanes | Adhesion Promoters
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| SiSiB® PC7910
Di-tertbutoxy-diacetoxysilane (DBAC).
Synonym: Diacetoxy di-tertbutoxy silane
Countertype of Dynasylan BDAC
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SiSiB® PC7910 is a clear and almost colorless fluid with a typical smell (MEKO). It readily hydrolyzes upon contact with moisture.
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| Typical Physical Properties |
| Chemical Name: |
Di-tertbutoxy-diacetoxysilane |
| CAS No.: |
13170-23-5 |
| EINECS No.: |
236-112-3 |
| Empirical Formula: |
C12H24O6Si |
| Molecular Weight: |
292.40 |
| Boiling Point: |
102°C [5mmHg] 277°C [760mmHg] |
| Flash Point: |
95°C |
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| Color and Appearance: |
Colorless or yellowish transparent liquid |
| Density [25°C]: |
1.020 |
| Refractive Index [25°C]: |
1.4040 [25°C] |
| Purity: |
97% by GC |
SiSiB® PC7910 is used as a raw material for acetoxy crosslinking RTV-1 sealants.
Acetoxy silanes are more reactive than alkoxysilanes. Acetoxy silanes are frequently used as one-component mixtures to make RTV-1 silicone sealants. These mixtures have an excess of multi-functional acetoxy silane added to silanol-terminated PDMS, which results in a PDMS chain with acetoxy groups at the ends. When this compound is exposed to moisture some acetoxy groups are hydrolyzed and self-condense or react with other acetoxy and rapid crosslinking takes place. Acetic acid formation is one of the driving forces of this reaction.
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Net weight 210L steel drum or 1000L IBC container, for more details, please visit Packing Centre.
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