Specification Sheet

SF 686
TYPICAL APPLICATIONS
•
For airtight and moisture-free sealing of Class 1 Flex Duct, sheet metal
and duct wrap vapor barriers
•
Also approved for subgrade application on PVC-coated duct
PRODUCT FEATURES
•
UL 181B-FX Listed - clearly printed on the tape for quick identification
•
Linered
•
Instant, water-resistant grip to most surfaces
•
Paintable with paint recommended for aluminum
•
Contains no asbestos, CFCs or PCBs
CONSTRUCTION
Overall Grade/Function: UL 181B-FX Listed mastic duct sealer
Backing: Printed, 2 mil aluminum foil
Adhesive: Non-flammable, butyl rubber
STANDARD WIDTH(S)
2 in 3 in
STANDARD LENGTH(S)
100 ft
Contact your Shurtape sales representative for other available sizes
APPLICABLE STANDARDS
Tested in accordance with UL 723; UL 181B-FX Listed; Pressure Classes
SMACNA ½, 1, 2, 3, 4, & 6; Seal Classes A, B, C
STORAGE AND USAGE CONDITIONS
Tape should be stored in its original packaging in a cool, dry area away
from direct sunlight and should be used within 12 months of date
of shipment. Surfaces to which tape is applied should be clean, dry
and free of grease, oil or other contaminants.
COLOR(S)
PHYSICAL PROPERTIES STANDARD METRIC
Tensile Strength 23.8 lbs/in width 41.7 N/10 mm
Adhesion to Stainless Steel 111 oz/in width 12.15 N/10 mm
Thickness 17 mils 0.43 mm
Application Temperature Range 35 F to 110 F 1.7 C to 44 C
Service Temperature Range -20 F to 200 F -29 C to 93 C
Physical and performance characteristics shown above are obtained from tests recommended by PSTC, ASTM, government
agencies or Shurtape Technologies, LLC, Quality Assurance and Technical Service departments and do not represent a
guarantee of product performance. Individual rolls may vary slightly from these averages. The user should determine
whether the product is fit for a particular purpose and is suitable for the user’s method of application before use.
Shurtape Technologies, LLC PO BOX 1530 Hickory, NC 28603-1530 USA Phone [phone].TAPE (8273) Fax [phone] shurtape.com
ISO 9001 CERTIFIED QUALITY SYSTEM
* Shurtape® is a registered trademark of Shurtape Technologies, LLC Form# TDS-SF-686-11/15/2017
UL 181B-FX LISTED/PRINTED
SHURMASTIC
®
BUTYL FOIL TAPE
SILVER PRINTED
(SPT)