• Flexible
• Smoke, gas and watertight
•
Non-toxic• Non-shrinking
•
Tested to ASTM E-814 and UL 1479
• Highly adhesive
• Easily
repenetrated
1.PRODUCT
NAME:
Nelson CLK™ N/S
(Non-Sag) firestop sealant
Nelson CLK™ S/L (Self-Leveling) firestop
sealant.
2.MANUFACTURER:
NELSON
Firestop Products
P.O. Box 726
Tulsa. Ok
74101-0726
Phone: (800) 331-7325
(918) 627-5530
Fax: (918)
627-2941
3. PRODUCT
DESCRIPTION:
BASIC
USE:
Nelson CLK is a family of flexible firestop sealants used to seal
against the spread of flame, smoke, gases and water in fire-rated walls
and floors that have been penetrated for the passage of items such as
pipes, conduit, bus duct or electrical cables. It is particularly useful
for sealing penetrating items which are subject to movement and vibration
when a positive seal is required. Nelson CLK, N/S (Non-Sag) is a highly
adhesive sealant suitable for wall, floor and overhead applications.
Nelson CLK, S/L (Self-Leveling) is ideally suited for floor applications
due to its exceptional flowability, thus eliminating the need for
additional labor.
COMPOSITION AND MATERIALS:
Nelson CLK, N/S and
S/L, are both one-part silicone based elastomeric firestop sealants that
emit no hazardous, combustible, or irritating fumes during or after
installation, curing or disposal. Nelson CLK is also non-shrinking,
asbestos-free and requires no mixing.
APPLICABLE STANDARDS:
UL 1479,
Fire Tests of Through-Penetration Firestops. ATM E-814, Fire Tests of
Through-Penetration Fire Stops. ASTM E-119, Fire Tests of Building
Construction and Materials.
APPLICABLE CODES:
Nelson CLK meets the
requirements of all three model building codes (National Building Code,
Uniform Building Code, Standard Building Code), as well as the National
Electrical Code, the Life Safety Code, and most state and city codes. For
specific approval information contact Nelson.
LIMITATIONS:
Nelson
CLK is a silicone based formulation and will react in a similar manner to
other silicone based compounds. The user should test for compatibility
before exposing Nelson CLK to chemicals or solvents.
4. TECHNICAL
DATA:
Nelson CLK, N/S
(Non-Sag) and S/L (Self-Leveling).
Color Brick Red]
Base Silicone
Rubber
Consistency:
CLK N/S Non-Sag
Negligible flow or
slump.
CLK S/L Self-Leveling
Free flowing, self
leveling.
Application Temp
0°F to 110°F
Service Temp
-49°F to
284°F
Skinning Time
Approx. 20 minutes.
Curing Time
Less than
two weeks at 1/2" thickness.
Allowable Movement
Max. 40%
Compression/Extension.
Specific Weight
1.17
Durometer
20-35,
Shore A
Tensile Strength 48 PSI
Dielectric Strength 70 Volts per
Mil.
Elongation 290%
Flamespread and Smoke Developed Index per (ASTM
E-84)Flamespread: CLK N/S (Non-Sag): 5
CLK S/L (Self-Leveling):
5
Smoke Developed:
CLK N/S (Non-Sag): 40
CLK S/L (Self-Leveling):
35
Ratings Per UL 1479 (ASTM E-814) Up to 3
hours.]
APPROVALS:
ULI, ULC, ANI, FM, USN, USCG.
STORAGE:
When
stored between 32°F (0°C) and 90°F (32°C), unopened Nelson CLK has a shelf
life of 12 month from date of shipment.5.
INSTALLATION:
Choose the
appropriate firestop system using Nelson application data sheets, the UL
Fire Resistance Directory, Factory Mutual Approval Guide, or other
directories of acceptable designs. No special skills or tools are
required. To ensure adequate adhesion, all surfaces shall be clean and
free of dust, grease, oil, loose materials, rust or other substances.
Apply the required depth of Nelson CLK beginning on the edge of the
opening (use over various backing materials as required). Make sure the
Nelson CLK makes complete contact with the inside surface of the opening
and also the surface of the penetrating item. The suggested method(s) of
installation include: caulking gun, pumping and
trowelling.
6. AVAILABILITY AND
COST:
Nelson CLK is
available through authorized distribution worldwide. Contact Nelson for
the location of the nearest distributor who is able is able to provide
cost and availability information.
SIZES:
NELSON CLK, Non-Sag,
Tube
Part Number (tube) AA529 (10.3 Fl. Oz., 18.5 Cu. In.)
Standard
Package AA491 (contains 10 tubes AA529)
Part Number (tube) AA596 (30
Fl. Oz., 53.88 Cu. In)
Standard Package AA595 (contains 10tubes
AA596)
NELSON CLK, Non-Sag, 5-Gallon
Part Number (5-Gal.) AA492
(1042 Cu. In.)
NELSON CLK, Self-Leveling, Tube
Part Number (tube)
AA539 (10.3 Fl. Oz., 18.5 Cu. In.)
Standard {package AA550 (contains 10
tubes AA539)
Part Number (tube) AA598 (30Fl. Oz., 53.88 Cu
In)
Standard Package AA597 (contains 10 tubes AA598)
NELSON CLK,
self-leveling, 2-Gal
Part Number (2-Gal.) AA551 (464 Cu In.
NELSON
CLK, Self-Leveling, 5-Gal
Part Number (5-Gal.) AA552 (1042 Cu.
In)
7.WARRANTY:
Recommendations
for the use of Nelson CLK and the information and data contained herein
are based upon information we believe to be reliable. Since field
conditions vary widely, the user must determine the suitability of the
product for the intended use and specific method(s) of application. All
firstop seals are subject to acceptance by the appropriate authority
having jurisdiction. Contact Nelson for a copy of the full warranty, a
part of the standard terms and conditions of sale.
8. MAINTENANCE AND
RETROFIT:
Maintenance is
normally not required. Future changes of penetrating items may be made
simply by cutting through the existing seal with a knife and resealing the
opening with Nelson CLK. Any changes should be approved by the authority
having jurisdiction.
9. TECHNICAL
SERVICES:
For complete
technical information and literature, including installation instructions,
contact Nelson or your authorized distributor. Information concerning the
firestopping of nonstandard penetrations is available form Nelson. Our
considerable engineering expertise and laboratory facilities enable us to
meet the most difficult firestopping requirements.
10 RELATED
REFERENCES:
Sweet's Catalogs
section 07270. Architects' First Source section 07270 Application details
in AutoCAD® format available on
request.