3M 8914 Edge Sealing Tape



3M 8914 Edge Sealing Tape

3M 8914 Edge Sealing Tape
• For use with perforated window films.
• Protects the edge of graphics from dust, water and dirt that may collect in the perforated areas.

1/2″ x 150 ft–

Edge Sealer 3950 and 4150S
Edge Sealer Tape 8914
Product Description Edge sealing minimizes the adverse effects of rigorous use or prolonged or severe exposure
conditions by providing water and contaminant-tight seal between a graphic film and
substrate. It is required for some 3M warranted graphics (refer to the base film’s Product
Bulletin for details). These products also may be applied even after the applied film shows
signs of wear, such as edge lifting, to significantly reduce further wear; however, such
application does not meet the requirements for warranted graphics.
Edge sealers 3950 and 4150S are single component colorless liquids.
Edge sealer 8914 is a clear tape used to seal vehicle window graphics and for sealing cut
edges and seams on watercraft graphics.
Recommended Types of
Graphics and End Uses
Refer to the base film or flexible substrate’s Product Bulletin for details on specific
constructions and any warranty that may apply when using this product.
Limitations of End Uses The solvent in the edge sealer may attack certain painted surfaces; always test in an
inconspicuous area before using.
Characteristics These are typical values for unprocessed product; processing may change the values.
Contact your 3M representative for a custom specification.
Characteristic Value
Color 3950: Clear liquid
4150S: Clear liquid
8914: Optically clear film
Material 3950: Acrylic/vinyl solution in xylene
4150S: Acrylic solution in xylene
8914: Vinyl film
Minimum viscosity 3950: 300 Centipoise
4150S: 700 Centipoise
Percent solids 3950: 46 +/- 2.5 %
4150S: 38+/- 2 %
8914 only Thickness: 2-3.5 mils (0.05 to 0.09) mm
Adhesive: Pressure-sensitive
Liner: Paper
Chemical resistance • Resists mild acids, mild alkalis, and salts.
• Excellent water resistance.
• Hydraulic fluid, LD-4, will dissolve 3950 within one hour of
50° to 100°F (10° to 38°C)
Service temperature
range of product in use
-60° to +150°F (-51° to + 65°C)Product & Instruction Bulletin Edge Sealers – 2
Prepare the Graphic for
Edge Sealing
1. Do not apply edge sealer unless the temperature is above the minimum recommended
2. Remove any application tape and re-squeegee the edges before applying the edge
3. Make sure all edges to be sealed are clean, dry and free of contaminants.
Prepare Edge Sealer 3950
or 4150S for Use
To preserve the unused portion of the edge sealer, transfer the desired amount into a
separate disposable container and tightly recap the original container immediately. Leaving
the original container open allows air to contaminate, reducing future shelf life.
Applying a Liquid Edge
1. Do not thin the sealer.
2. Use the dauber supplied with edge sealer or a 1/4 inch (0.6 cm) brush.
3. Wipe any excess edge sealer off the dauber or brush.
4. Hold the brush or the flat edge of the dauber so that it straddles the film and substrate
5. Pull the dauber or brush along the edge in a smooth, continuous motion. Make sure
the entire edge is covered with no gaps. See FIGURE 1.
6. Use opened and/or mixed sealer within two hours and discard any used sealer.
7. Air dry for 24 hours before putting the graphic into service.
Applying edge sealer
Applying Edge Sealing
Tape 8914
Edge sealing improves the resistance to environmental damage and enhances the durability
of the graphics. We recommend using one of these easy options on graphic edges.
Seal Edges with Strips of
This method can be used whether your graphic has overlaminate 8914 or a screen printed
clear coat applied.
Apply a 1/2 inch (13 mm) strip of overlaminate 8914 so each strip evenly straddles the
perforated film and substrate. Overlap the corners. See FIGURE 2 and FIGURE 3.
Important Note! Never allow film or overlaminate to touch the rubber window molding.
Applying 8914 Edge Sealing Tape ÅÅÅÅ ÅÅÅÅ ÅÅÅÅ ÅÅÅÅ ÅÅÅÅ ÅÅÅÅ ÅÅÅÅ
Overlap corners
Apply strips of 8914 to overlap
onto glass and small spaces
between windows by 1/4 inch
(7 mm)
Small gaps
between windows
Perforated Window
Graphic FilmProduct & Instruction Bulletin Edge Sealers – 3
Avoid Rubber Moldings
Do not allow application tape or
film to touch rubber moldings
Rubber Molding
Shelf Life and Storage • Sealers 3950 and 4150S Total Shelf Life, unopened, is 2 years. Cans are marked
with both date of manufacture and use by date.
– Tightly cap the container after each use. Opening the container introduces air that
affects future shelf life.
– Store in a cool, dry environment.
• Edge Sealing Tape 8914 Total Shelf Life is 3 years from the date of manufacture
on the original box. Up to 2 years unprocessed, OR process within 1 year and then
apply within 1 year of processing.
– Store in a cool, dry environment.
Health and Safety
CAUTION When handling any chemical products, read the manufacturers’ container labels and the
Material Safety Data Sheets (MSDS) for important health, safety and environmental inform­
ation. To obtain MSDS sheets for 3M products go to, or by mail or in case of
an emergency, call 1-800-364-3577 or 1-651-737-6501.
When using any equipment, always follow the manufacturers’ instructions for safe
Warranty and Limited
The following is made in lieu of all other express or implied warranties, including any im­
plied warranty of merchantability or fitness for a particular purpose or implied warranty
arising out of a course of dealing, custom or usage of trade: all 3M products are warranted
to be free of defects in materials and manufacture at the time of shipment and to meet the
specifications stated in this Product Bulletin. 3M will replace or refund the price of any 3M
materials that do not meet this warranty within the specified time periods. These remedies
are exclusive. In no case shall 3M be liable for any direct, indirect, or consequential
damages, including any labor or non-3M materials charges.
See the 3M Graphics Market Center Warranty Brochure at, which gives
the terms, additional limitations of the warranty, if any, and limitations of liability

Additional information



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