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• 7 • 800-356-1688 • 2005 vol. 1
free literature
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Silcosteel®
A general-purpose passivation layer
for steel and stainless steel.
U.S. patent 6,511,760.
Silcosteel®-AC
Dramatically reduces carbon buildup
on stainless steel components.
U.S. patent 6,444,326.
Silcosteel®-CR
A corrosion resistant layer that
increases the lifetime of system
components in acidic environments
containing hydrochloric acid, nitric
acid, sulfuric acid, or seawater.
Patent pending.
Silcosteel®-UHV
Greatly reduces outgassing from
components of ultra-high vacuum
systems. Patent pending.
Siltek®
The ultimate passivation for treated
components, from glass to high
nickel alloys of steel.
U.S. patent 6,444,326.
Sulfinert®
A required treatment for metal
components when analyzing for parts-
per-billion levels of organo-sulfur
compounds.
U.S. patent 6,444,326.
Economic Value of an Inert Pathway
Sulfinert® treated sampling and transfer sys-
tems offer more accurate results and faster
cycle times. Improved accuracy and reliability of
data for sulfur compounds allow improvements
in downstream process control, with associated
cost savings. Shorter cycles translate directly
into more samples collected and analyzed in a
given period of time. Savings accrued from
shorter cycles can be calculated by looking at
typical per-hour costs of operating processes
that rely on accurate quantification of sulfur
compounds: a one-hour delay in an 800,000
tons-per-year ethylene plant can cost $50,000; a
250,000 tons-per-year EBSM styrene plant
stands to loose $33,000/hour; even for a
200,000 tons-per-year anti-freeze grade produc-
tion process, the loss can be $3,600/hour. 1
In these studies, we obtained accurate data,
with no delay between samples, by using
Sulfinert® treated electropolished tubing in the
sampling-storage-transport system. In contrast,
we obtained significantly less accurate data,
even with delays of more than two hours
between samples, by using untreated tubing.
Analysts charged with monitoring sulfur levels in
process streams can significantly improve
process control, and profitability, by using
Sulfinert ® treated system components and
Sulfinert ® treated electropolished tubing trans-
port lines.
Sulfinert ®-Treated Electropolished Tubing
1/ 8" OD: 5 ft. to 100 ft. in one continuous coil; 1 /4 " OD: 5 ft. to 300 ft. in one continuous coil. Longer lengths will be more than one coil.
Note: (required length in meters) x (3.2808) = length in feet.
** 0.035" wall thickness.
Price-per-foot
ID OD cat.# 5-24 ft. 25-99 ft. 100-299 ft. >300 ft.
0.085" 1 /8" 22538 $25/ft. $20/ft. $16.80/ft. $14/ft.
0.180" 1 /4" 22539 $25/ft. $20/ft. $16.80/ft. $14/ft.
Coiled Sulfinert®-Treated Seamless 316 Grade Stainless Steel Tubing
Price-per-foot
ID OD cat.# 5-24 ft. 25-199 ft. 200-399 ft. >400 ft.
0.055" (1.40mm) 1 /8" (3.18mm)** 22508 $18.75/ft. $15/ft. $12.50/ft. $10/ft.
0.180" (4.57mm) 1 /4" (6.35mm)** 22509 $18.75/ft. $15/ft. $12.50/ft. $10/ft.
Sulfinert®-Treated Sample Cylinders
D.O.T. rated to 1800psi at room temperature.
Size qty. cat.# price
75cc ea. 24130 $200
150cc ea. 24131 $225
300cc ea. 24132 $230
500cc ea. 24133 $255
1000cc ea. 24134 $425
2250cc ea. 21394 $820
We offer Sulfinert®-treated
Swagelok® and Parker fittings, and
treated valves and sample loops.
For more information and ordering, call us or
visit us online.
tech tip
Minimum Bend Radius
For tubing treated with Restek coatings
OD Min. Bend Radius
≤ 1/16" 1" (2.5cm)
1 /8" 2" (5.1cm)
1 /4" 4" (10.2cm)
please note We can cut and finish tubing at nominal additional charge—please inquire.
did you know?
Restek surface treatments have many uses, in addition to analytical chemistry.
Restek Surface
Technology Earns
R&D 100 Award
Our newest surface treatment, Silcosteel® -UHV,
has been recognized by a panel of
independent judges and editors of R&D
Magazine as one of the 100 most technologi-
cally significant products introduced in 2003.
Silcosteel®-UHV treatment minimizes the
migration of water and oxygen molecules from
the surfaces of ultra high vacuum system com-
ponents into the vacuum chamber, allowing the
system to be evacuated much more quickly,
with less costly pumping equipment.
award-winning innovation!