3
Weather Resistant Film Tape
838
Technical Data
Product Description
3M™ Weather Resistant Film Tape 838 can be used for many long-term weather
resistant and protecting applications.
Product Construction
Backing
Tedlar
®
PVF
Adhesive
Acrylic
Color
White
Standard Roll Length
72 yds. (66 m)
Standard Widths
1, 1
1/2
, 2 in.
(25, 38, 50 mm)
Typical Physical
Properties
Note: The following technical information and data should be considered representative
or typical only and should not be used for specification purposes.
ASTM Test Method
Adhesion to Steel:
Tensile Strength:
Elongation at Break:
Backing Thickness:
Total Tape Thickness:
Temperature Use Range:
47 oz./in. width (51 N/100 mm)
24 lbs./in. width (420 N/100 mm)
170%
2.1 mils (0.05 mm)
3.4 mils (0.09 mm)
-100° to 225°F (-73° to 107°C)
D-3330
D-3759
D-3759
D-3652
D-3652
Features
• Good aging properties because it contains no plasticizers. It also remains tough
and flexible over a broad temperature range.
• The properties of Tedlar
®
film include excellent resistance to weathering,
outstanding mechanical properties and inertness toward a wide variety of
chemicals, solvents and staining agents.
• Tedlar
®
film tape is strong, flexible and fatigue resistant.
• Can be certified to meet Mil Spec MIL-T-22085 Amendment 3, Type IV.
Application Ideas
• Sealing the seams of outdoor building panels, windows and doors as well as
similar severe exposure applications.
• Hinge seal on shower doors.
3M
™
Weather Resistant Film Tape
838
Storage
Store under normal conditions of 60° to 80°F (16° to 27°C) and 40 to 50% R.H. in
the original carton.
Shelf Life
To obtain best performance, use this product within 18 months from date of
manufacture.
Product Use
All statements, technical information and recommendations contained in this document are based upon
tests or experience that 3M believes are reliable. However, many factors beyond 3M’s control can affect
the use and performance of a 3M product in a particular application, including the conditions under
which the product is used and the time and environmental conditions in which the product is expected to
perform. Since these factors are uniquely within the user’s knowledge and control, it is essential that the
user evaluate the 3M product to determine whether it is fit for a particular purpose and suitable for the
user’s method of application.
Warranty and
Limited Remedy
Unless stated otherwise in 3M’s product literature, packaging inserts or product packaging for individual
products, 3M warrants that each 3M product meets the applicable specifications at the time 3M ships the
product. Individual products may have additional or different warranties as stated on product literature,
package inserts or product packages. 3M MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY ARISING OUT OF A COURSE OF
DEALING, CUSTOM OR USAGE OF TRADE. User is responsible for determining whether the 3M product
is fit for a particular purpose and suitable for user’s application. If the 3M product is defective within the
warranty period, your exclusive remedy and 3M’s and seller’s sole obligation will be, at 3M’s option, to
replace the product or refund the purchase price.
Limitation of Liability
Except where prohibited by law, 3M and seller will not be liable for any loss or damage arising from the
3M product, whether direct, indirect, special, incidental or consequential, regardless of the legal theory
asserted, including warranty, contract, negligence or strict liability.
ISO 9001: 2000
This Industrial Adhesives and Tapes Division product was manufactured under a 3M quality system registered to ISO 9001: 2000 standards.
3
Industrial Business
Industrial Adhesives and Tapes Division
3M Center, Building 21-1W-10, 900 Bush Avenue
St. Paul, MN 55144-1000
800-362-3550 • 877-369-2923 (fax)
www.3M.com/industrial
Recycled Paper
40% pre-consumer
10% post-consumer
Tedlar is a registered trademark of
E.I. Dupont de Nemours & Co. Inc.
Printed in U.S.A.
©3M 70-0703-2483-8 (1999
/
11/05)
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