Question 1

What is CGA-156 Trimethylsilyl acetylene (TMSA), Ethynyltrimethylsilane used for?

Accepted Answer

CGA-156 (Trimethylsilyl acetylene (TMSA), Ethynyltrimethylsilane (CAS 1066-54-2)) is a silane coupling agent supplied by HOCON INTERNATIONAL. It is used in applications such as construction, coatings, inks & chemicals, industrial manufacturing. Refer to the TDS on this page for detailed application guidance.

Question 2

What are the key specifications of CGA-156?

Accepted Answer

CGA-156 Trimethylsilyl acetylene (TMSA), Ethynyltrimethylsilane (CAS 1066-54-2) (C5H10Si) is manufactured by HOCON INTERNATIONAL to consistent quality standards. Full technical specifications — purity, appearance, density, refractive index, viscosity and storage conditions — are listed in the downloadable TDS on this product page.

Question 3

Does HOCON provide TDS and MSDS for CGA-156?

Accepted Answer

Yes. The TDS (Technical Data Sheet) and MSDS/SDS (Safety Data Sheet) for CGA-156 are available for download directly on this page in multiple languages (English, Chinese, Spanish, Japanese, Korean, Russian). Visit the Quality page for the full document library.

Question 4

What is the minimum order quantity (MOQ) for CGA-156?

Accepted Answer

MOQ for CGA-156 is negotiable. Standard packaging options include 25 kg drum, 200 kg drum, 1000 kg IBC; IBC totes and ISO tank containers are available for bulk orders. Sample quantities are available for qualification testing. Contact HOCON at sales@hoconsi.com or via the RFQ form for a quote.

Question 5

How should CGA-156 be stored and what is its shelf life?

Accepted Answer

CGA-156 should be stored in a cool, dry, well-ventilated area away from heat sources and incompatible materials, in tightly sealed original containers. Typical shelf life is 12–24 months from the date of manufacture when stored under recommended conditions. Refer to the MSDS/SDS for full storage and handling requirements.

Grade	CGA-156
CAS No.	1066-54-2
EINECS	213-919-9
Molecular Formula	C5H10Si
Category	Silane Coupling Agents — Alkyl & aryl hydrophobing silanes

Appearance	Clear liquid
Purity / Assay	≥ 98%
Molecular Weight	98.22
Boiling Point	53°C
Flash Point	> 90°C (closed cup)
Density	0.86–0.95 g/cm³ (25°C)
Refractive Index	1.388 (20°C)
Recommended Dosage	0.3–2.0 wt% (filler basis)

CGA-156 — Trimethylsilyl acetylene (TMSA), Ethynyltrimethylsilane

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