• Non-toxic
• Intumescent
•
Halogen-free• Tested to ASTM E-814
and UL 1479
• Reusable for convenient retrofit
• Quick, easy
installation
1. PRODUCT
NAME:
Nelson WRS™
firestop wrap strip
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 WRS is an intumescent firestop wrap strip. When exposed to
fire, the wrap strip expands to lock the seal in place.
COMPOSITION AND
MATERIALS:
Nelson WRS consists of a flexible 1/4-inch thick by 2-inch
wide by 96-inch long strip. The wrap strip releases no disagreeable toxic
or hazardous fumes during installation, and no special precautions are
necessary for either installers or occupants of enclosed
spaces.
APPLICABLE STANDARDS:
UL 1479, Fire Tests of
Through-Penetration Firestops. ASTM E-814, Fire Tests of
Through-Penetration Fire Stops. ASTM E-119, Fire Tests of Building
Construction and Materials.
APPLICABLE CODES:
NELSON WRS meets the
requirements of all three model building codes (National Building Code,
Uniform Building Code, Standard Building Code), as well as the Life Safety
Code and most state and city codes. For specific approval information,
contact Nelson.
LIMITATIONS:
Prevent extended contact with or
immersion in water.
4. TECHNICAL
DATA:
Nelson WRS Wrap
Strip.
Color Black
Service Temp -10°F to +140°F
Activation Temp
250°F
Unit Size 1/4" x 2" x 8'
Flamespread and Smoke Developed Index
per (ASTM E-84)
Flamespread: 40
Smoke Developed: 80
Ratings: Per
UL 1479 (ASTM E 814), up to
2-hours.
APPROVALS:
ULI
STORAGE:
Store in dry, covered
location. There is no indication of shelf-life limitations..5.
INSTALLATION:
Choose the
appropriate firestop system using Nelson application data sheets or the UL
Fire Resistance Directory. No Special skills or tools are required. All
surfaces shall be clean and free of dust, grease, oil, loose material,
rust or other substances. Apply Nelson WRS in layers fitted closely around
pipe. Secure each layer with tape. Stagger joints in successive layers.
Use enough layers to completely fill annular space. When all layers are
assembled, slip complete tier into position. If voids remain, fill them as
needed with Nelson FSP Firestop Putty.
6. AVAILABILITY
AND COST:
Nelson WRS is
available through authorized distributors world wide. Contact Nelson for
the location of the nearest distributor who is able to provide cons and
availability information.
SIZES:
NELSON WRS WRAP STRIP
Part
Number AA0662
(1/4" thick x 2" wide x 96" long)
7.
WARRANTY:
Our
recommendations for the use of Nelson WRS 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 firestop 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:
No maintenance is
required. Retrofit can be accomplished by removing and replacing Wrap
Strip. Individual strips can be reused if inspection shows no damage. Any
changes should be approved by the authority having
jurisdiction.
10. RELATED
REFERENCES:
Sweet's Catalogs
section 07270. Architects' First Source section 07270. Application details
in AutoCADŽ format available on
request