Solvents_Reagents_2014_Text - page 25

Thermo Scientific
| Reagents, Solvents and Accessories
23
Thermo Scientific
Siliconizing Fluids
Siliconizing Fluids
An easy way to bond polymer films to surfaces.
Thermo Scientific Multifunctional Siliconizing Fluids are
specially designed to chemically bind microscopically thin,
water-repellent films to glass, quartz, silica and ceramics.
The coated surfaces are neutral, hydrophobic and
non-oily. In addition, they offer increased resistivity and are
not affected by solvents that are not readily hydrolyzed.
Use our Siliconizing Fluids to treat pipettes, beakers,
certain plastics, ceramics, fiber optics and more:
• For clean drainage and elimination of meniscus
• To reduce adsorption of polar compounds, proteins and
trace metals onto glass surfaces and reduce leaching of
trace metals into solution
• To prevent current tracking and minimize electrical
leakage on glass surfaces and ceramics
• To protect delicate samples against the possible reactive
effects of -OH sites present on all types of glassware
More reasons to use our Siliconizing Fluids:
• Easy to apply
• Economical – a little bit goes a long way
• Surfaces can easily be recoated
• Improve surface water-repellency
• Increase surface resistivity
Siliconizing Fluid – Water Soluble
Our water-soluble fluid for siliconizing glass surfaces.
CH
3
(CH
2
)
16
CH
2
Si(OR)
Siliconizing Fluid – Water Soluble
Thermo Scientific Water Soluble Siliconizing Fluid is an
easy-to-use silane monomer solution that is supplied as a
20% solid solution in a mixture of diacetone alcohol and
tertiary butyl alcohol. The primary silane component is an
octadecyltrialkoxysilane that, when mixed with water, is
hydrolyzed to a silanol. This silanol condenses with
available hydroxyl groups and other silane monomers to
form a film on the glass surface.
Our Water Soluble Siliconizing Fluid is especially useful in
the biochemical field because of its aqueous phase
application to glass and its greater resistance to base
hydrolysis.
Instructions for Use
Our Water Soluble Siliconizing Fluid is applied to a clean
glass surface as a dilute aqueous solution. Prepare a 0.1-
1.0% solution by weight or volume. [
Note:
Siliconzing Fluid
– Water Soluble contains 20% solids; therefore, one part our
Water Soluble Siliconizing Fluid plus 99 parts water (w/w)
yields a 0.2% solution – not 1%.] Add the Siliconizing Fluid to
water with constant stirring. A clear-to-slightly hazy
solution will be obtained. Solutions are not indefinitely
stable and will turn cloudy and precipitate after several
days and, therefore, solution should be prepared just before
use. Solution stability can be optimized, however, by
adjusting the aqueous solution pH to 4.5-5.0.
The article to be coated is dipped into the solution, or the
surface is flooded with the solution. A thin film will
immediately lubricate the glass surface, making it
water-repellent. The surface then is air-dried for 24 hours or
heated at 100°C for several minutes. Exact drying conditions
should be determined before use in commercial process
applications.
Ordering Information
Product # Description
Pkg. Size
TS-42799
Siliconizing Fluid – Water Soluble
120 ml
Additional hazardous handling charge.
1...,15,16,17,18,19,20,21,22,23,24 26,27,28,29,30,31,32,33,34,35,...56
Powered by FlippingBook