Name: ZEMSIL SL-AK
Brand: ZEMSIL

Question 1

What is ZEMSIL SL-AK?

Accepted Answer

ZEMSIL SL-AK (Alkaline Colloidal Silica Dispersion, CAS 7631-86-9) is a ZEMSIL® silicone material. ZEMSIL SL-AK is an alkaline colloidal silica dispersion containing 30% SiO₂ as 10–20 nm discrete particles stabilized at pH 9–10.5 with sodium counter-ions. Upon drying and sintering, the nanoparticles form a continuous, high-purity silica matrix with excellent adhesion to metal, ceramic, and glass substrates. It is the preferred binder in precision investment casting shell systems and catalyst supports due to its high solid content and long shelf stability.

Question 2

What is ZEMSIL SL-AK equivalent to?

Accepted Answer

ZEMSIL SL-AK is equivalent to Nalco 1030, Ludox AS-30 and can be used as a direct drop-in replacement in most formulations.

Question 3

What are the main applications of ZEMSIL SL-AK?

Accepted Answer

ZEMSIL SL-AK is used in: Refractory and investment casting binder (precision casting shells), Catalyst support and carrier for heterogeneous catalysis, Anti-reflective coating for glass and solar panel surfaces, Paper sizing and surface treatment for improved ink holdout.

Question 4

What are the key specifications of ZEMSIL SL-AK?

Accepted Answer

SiO₂ Content: 30 ± 1 %; Particle Size (DLS): 10–20 nm; pH: 9.0–10.5; Na₂O Content: ≤0.5 %; Viscosity @ 25°C: ≤10 mPa·s; Specific Gravity @ 25°C: 1.20–1.22

Question 5

What is the CAS number of ZEMSIL SL-AK?

Accepted Answer

The CAS number of ZEMSIL SL-AK (Alkaline Colloidal Silica Dispersion) is 7631-86-9.

ZEMSIL SL-AK

사양

응용 분야

주요 특징

견적 요청

관련 제품

항목	값	단위	시험 방법
SiO₂ Content	30 ± 1	%	—
Particle Size (DLS)	10–20	nm	—
pH	9.0–10.5	—	—
Na₂O Content	≤0.5	%	—
Viscosity @ 25°C	≤10	mPa·s	—
Specific Gravity @ 25°C	1.20–1.22	—	—