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Product Bulletin 8624
Release D, Effective August 2007
See the Bulletin Change Summary on the last page
Scotchcal
Graphic Film for Textured Surfaces IJ8624, RG8624, FN8624 and
8624 ES
For Piezo Inkjet and Electrostatic Printing
Product Description These are 2−mil removable graphic films designed for either solvent−based piezo inkjet
printing or electrostatic printing. When heated and applied with 3M’s application tools and
techniques, these films conform to moderately textured surfaces on both flat and curved
substrates, including concrete block, brick, industrial stucco and tile similar to those surfaces
commonly found in sports arena, stadiums, restaurants, retail and other public venues.
Graphic
Protection
Graphic protection prevents abrasion and adds stiffness that makes some applications easier.
Using an overlaminate generally improves removal characteristics. See the Compatible
Products section for the recommended graphic protection for your printing method.
Piezo Inkjet Printing
Graphic protection is not always required, but it is recommended.
Electrostatic Printing
Graphic protection is required to protect the toners.
Recommended Types of
Graphics and End Uses
When constructed and used as described in this Bulletin, these types of graphics and end
uses are covered by 3M’s Basic Product Warranty. Please read the entire Bulletin for details.
• Graphics applied to indoor or outdoor moderately textured surfaces. See Application
Characteristics on page 2 for details.
! CAUTION Be aware that graphics installed outdoors can develop mold or mildew on top of or behind
the graphic, which may be a health concern for some individuals, especially during graphic
removal.
Compatible Products
3M Graphic Materials For complete details about graphic construction options, recommended uses and durability,
refer to the Product Bulletin for the base film or substrate (media) you are using. See 3M
Related Literature at the end of this bulletin.
Piezo Inkjet Printing • 3M Scotchcal Graphic Film for Textured Surfaces IJ8624 or RG8624
• Any piezo inkjet ink or printer (test and approve)
• 3M Scotchcal Luster Overlaminate for Textured Surfaces 8524
Electrostatic Printing • 3M Scotchcal Graphic Film for Textured Surfaces 8624 ES
• Scotchprint® Electronic Graphics System
• Scotchprint® Toner Series 8700/8800 ES
• 3M Trident Transfer Media
• 3M Scotchcal Luster Overlaminate 8519
• 3M Scotchcal Matte Overlaminate 8520
• 3M Screen Printing Gloss Clear 1920DR
• 3M Piezo Inkjet Protective Clear 8530
Product Bulletin 8624 − 2
Characteristics
Characteristic Value
Physical
Characteristics
Material Vinyl
Color White
Thickness Without adhesive: 2 mils (0.05 mm)
With adhesive: 3 to 4 mils (0.08 to 0.10 mm)
Adhesive type Pressure sensitive
Adhesive color Gray pigmented for excellent hiding power
Liner Layflat polyethylene coated paper
Adhesion
24 hours after application
Adhesion depends on the substrate material, texture and application
technique. See Test Procedure on page 3.
Chemical resistance Resists mild alkalis, mild acids, and salt
Excellent resistance to water (this does not include immersion)
Flammability Call 1-800-328-3908 for information
Application
Characteristics
Finished graphic application
recommendation
Application surfaces: Moderately−textured surfaces such as
concrete block, brick, industrial stucco and tile, as found on flat
walls and/or simple curved architectural elements such as columns.
See Instruction Bulletin 5.37 for details.
Substrate temperature: 40° to 100°F (4° to 38°C)
Applied film shrinkage 0.015 inches (0.4 mm)
Graphic removal Varies with type of substrate; using heat enhances removal of
film; may leave adhesive residue, may remove some surface
paint or finish, may damage mortar
Warranty
3M Basic
Product Warranty
This product has been tested and is believed to be a good product when used as recommended
in this bulletin. The film is covered by the 3M Basic Product Warranty and is guaranteed
to be free of physical and manufacturing defects. There is no warranty for printability,
visual appearance, fitness for use or durability.
Warranty and
Limited Remedy
The following is made in lieu of all other express or implied warranties, including any implied
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 Graphics Market Center Warranty Brochure, which gives the terms, additional limitations
of the warranty, if any, and limitations of liability.
Product Bulletin 8624 − 3
Expected Performance Life Films IJ8624 and 8624 ES are durable, high performance cast films with excellent imaging
capability. To ensure that these films meet your specific needs, 3M recommends that
graphic manufacturers test this film for satisfactory printing, cutting, adhesion and removal
characteristics for the intended end uses. This information does not imply a warranted durability
period.
Expected Performance Life
• Indoor: greater than 2 years in most applications
• Outdoor: 3−6 months when not used in the freezing and thawing cycles described below;
graphics perform much longer in dry, temperate environments
Key Factors That Influence Performance Life
• Installation techniques. Improper installation techniques result in edge curling, lifting
and/or poor adhesion.
• Adhesion for outdoor graphics. When testing film adhesion, the film is unlikely to be
durable in outdoor applications if it can be easily removed from a textured surface (using
a force of <2 pound/lineal inch).
• Outdoor graphics exposed to water from rain or irrigation systems. Water can be
trapped behind graphics applied outdoors, leading to lifting as well as the creation of
mold.
• Surface temperature. Textured substrates that reach temperatures in excess of 135°F
may exhibit lifting, especially in mortar joints.
• Texture variation. More than 1/8 inch variation in high and low spots of substrate texture
and mortar joints, as well as square cut or undercut mortar joints, may exhibit lifting.
• Freezing and thawing cycles. For a textured masonry wall that has both an indoor
facing side and an outdoor facing side and no effective moisture barrier, moisture vapor
transmission occurs naturally when the indoor surface has a room environment that is
warmer and moister than the outdoor surface. When a graphic is applied to the outdoor
wall and there are cycles of outdoor freezing and thawing, moisture can be trapped
between the wall and result in graphic lifting, as well as in spalling both within the wall
and on the outdoor facing wall. Such damage can be unsightly and costly to repair.
• Removal. Unsound substrates, paint, texture−finished wallboard and textured wallpaper
may be damaged upon graphic removal.
• Smooth surfaces. Use other appropriate films for adjacent smooth surfaces. Contact
your 3M sales representative for assistance.
Fabrication
Piezo Inkjet Printing When printed with solvent−based piezo inkjet ink, you can expect similar printing results to
3M Controltac Graphic Film IJ180.
Refer to the ink manufacturer’s Product and Instruction Bulletins for printing details.
Electrostatic Printing Print the image onto the transfer media, then use heat and pressure to transfer the image
to film 8624 ES. See the 3M Related Literature section for the bulletins that describe these
processes.
Application
Important Note • Application of this film requires the use of high heat, 3M’s textured surface applicator
tools and unique application techniques. To help ensure a successful application,
please view the 3M DVD, Textured Walls Application, or arrange for a training class.
Contact your local 3M sales representative to assist you with either of these options.
• Salt passing through masonry may become trapped behind films. Salt collection on the
masonry surface for extended periods of time may cause staining or discoloration.
To support your training, comprehensive application techniques are available in the most
current version of Instruction Bulletin 5.37.
Product Bulletin 8624 − 4
Tips for Successful
Textured Wall
Applications
On textured surfaces, the film and adhesive must conform to irregular high and low spots,
which often includes mortar joints. This film is designed to be effective on many of the most
common moderate textures found in public stadiums, arenas and similar environments.
However, due to the wide variation in substrate texture, you should verify that the film and
3M techniques described in this Bulletin and Instruction Bulletin 5.37 are suitable for each
of your applications.
• Use an installer trained in 3M’s techniques and with access to the required 3M tools.
• Test each different textured surface you are considering at each location. See the instructions
in the following section.
• Film is more susceptible to lifting from deep or undercut mortar joints than shallow ones
(about 1/8" deep). Instruction Bulletin 5.37 discusses the various types of mortar joints.
• In most cases, minor lifting does not detract from the impact of your customer’s message,
nor from the overall durability of the graphic. Edge lifting, which is usually most
noticeable at mortar joints, may be susceptible to picking and tearing if the graphic is at
pedestrian level and within reach.
• Avoid extremes in temperatures.
- Freeze/thaw cycles that trap moisture behind graphics can cause lifting.
- Water may accumulate behind graphics applied to unsealed substrates, resulting in
water bubbles that cause lifting.
- Intense direct sunlight may cause lifting.
Piezo Inkjet Printing Only
• Using overlaminate 8524 in piezo inkjet graphic construction may make removal easier.
Test Application
Instructions
Tools 3M testing shows that the following test, which uses a small piece of film, is adequate for
judging good adhesion to and appearance on textured surfaces. One of the following applicator
tools will be needed for this test.
• 3M Power Grip Magic Pad Rivet Applicator CMP−1
• 3M Textured Surface Applicator TSA−1
• 3M Textured Surface Applicator TSA−3
Note: Do not attempt this test using a standard squeegee. You will not be successful.
Note: Some uses of these 3M tools are described and claimed in 3M Patents and pending
Patent applications.
• Industrial heat gun with an electronic readout, capable of achieving and sustaining
1000°F (537°C). See Instruction Bulletin 5.37 for examples of suitable guns.
• Heat and burn−resistant gloves
• Film samples
- Piezo Inkjet Printing Only
Approximately 1 square foot of film IJ8624. The marketing sheet you may have
received from your sales representative is made from film IJ8624 and may be used.
Five yard rolls of film IJ8624 are also available.
- Electrostatic Printing Only
At least a 1 square foot sample of 3M Scotchcal Graphic Film for Textured
Surfaces 8624 ES or 3M Controltac Graphic Film 8620 ES.
Substrate Preparation Pre−cast concrete material can have an oily surface and be speckled with dust because of
the production process. These characteristics inhibit good adhesion.
If you have poor adhesion, use TSP (tri−sodium phosphate) and water according to the
manufacturer’s instructions, or use 3M All Purpose Cleaner and Degreaser, diluted as
recommended. Scrub the surface with a brush. Vacuum with a wet−dry vacuum, then allow
to dry until it both looks and feels dry to the touch.
Product Bulletin 8624 − 5
! CAUTION Risks of Using Heat Sources
• To reduce the risk of a serious burn, we recommend always protecting the hand that is
holding the applicator tool with a heat−resistant glove.
• Do not use heat sources near solvent mixtures or residues, or in areas where solvent
vapors may be present at hazardous levels.
• Never use an open−flame heat source in this process.
• Heat guns are capable of degrading roller and film. Do not point the heat gun directly at
the roller. Use care not to overheat and burn the film.
• Provide adequate ventilation.
• Always read and following the heat gun manufacturer’s recommendations for use.
Procedure 1. Application technique
a. Perform the test in an inconspicuous place on each type of substrate you plan to
use for each of the larger graphics.
b. Set the gun to 1000°F (537°C).
c. Work at a speed that allows the film to be heated enough to make it conformable.
Overheating damages the film; under−heating does not permit conformability.
Detailed troubleshooting is provided in the most current version of Instruction
Bulletin 5.37.
2. Wear a heat−resistant glove on the hand that holds the applicator tool (TSA−1, TSA−3 or
CMP−1).
3. If you are using the TSA−1 or TSA−3 roller:
a. Hold the heat gun about 1 inch above and immediately in front of the TSA−1 or
TSA−3 roller.
b. Start at an outside top corner and work straight across to the other side using this
technique: Heat the film directly in front of the roller for about 1 second and then
begin following closely with the roller, pushing firmly. Move at a slow, steady pace.
c. Roll all the way to the edge.
d. Move the roller down about 2 inches and repeat Step 3 until the film is fully applied.
Note: The 1−inch width of the TSA−3 roller will prevent you from moving down 2 inches.
See FIGURE 1.
FIGURE 1
TSA−1 ROLLER:
in a slow consistent
movement, heat the film just in
front of the roller and follow
closely with the roller.
Product Bulletin 8624 − 6
4. If you are using the CMP−1 pad:
a. Heat the film for about 1 second and immediately press the film firmly with the
CMP−1 pad for about another second to conform the film around the texture.
b. Move to the next section of filmabout 1/2 the width of the padheat the film
and press firmly with the pad.
c. Continue with this procedure across the width of the film sample and then start a
new row, working in this manner until the film is fully applied.
d. Do the next pass across the film by moving down about 1/2 the width of the pad.
Repeat Step 4 until the film is fully applied. Refer to FIGURE 2.
FIGURE 2
CMP−1 PAD:
Heat the film, tip the gun away
and immediately press the
heated film firmly with the pad.
5. If the film lifts immediately, the application technique may not have been satisfactory, or
the texture is too severe for the film. Do not attempt to go over the sample again; try
another one.
6. If possible, leave the film in place for one week, then check for good adhesion and
acceptable removal. Note that film 8620 ES typically shows more lifting than film 8624
ES.
Shelf Life, Storage and
Shipping
See Instruction Bulletin 6.5 for details.
Shelf Life Total shelf life: 2 years
Up to 2 years unprocessed, OR process within 1 year and apply within 1 year of processing
Storage Conditions • 100°F (38°C) maximum; do not freeze
• Out of sunlight
• Clean dry area
• Original container
Shipping Finished Graphics Be sure graphics are fully dried before rolling
Ship flat or rolled printed side out. Graphics with an overlaminate should be rolled on a 6
inch (16 cm) or larger core; unlaminated graphics may be rolled on a 3 inch (8 cm) core.
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 information.
To obtain MSDS sheets for 3M products:
• By fax, call 1-800-364-0768 in the US and Canada or 1-650-556-8417 for all other
locations.
• Electronically, visit us at www.3M.com/MSDS.
• 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 operation.
Product Bulletin 8624 − 7
3M Related Literature Before starting any job, be sure you have the most current Product and Instruction
Bulletins.
The information in 3M Product and Instruction Bulletins is subject to change. Current
Bulletins are available at www.3Mgraphics.com or through our Fax-on-Demand system.
The following applicable Bulletins provides information and processes you need to properly
make the graphics described in this Bulletin. Additional Bulletins may be needed as
indicated in the 3M Related Literature section of other 3M components you use.
Fax on Demand
Phone Numbers
United States or Canada: 1-800-364-0768
International: 1-651-732-6506
Subject
Bulletin
No.
FO
D
No.
Product Bulletins
Electrostatic Printing Scotchprint Toner Series 8700/8800 8700 3514
3M Trident Transfer Paper Trident 3567
3M Scotchcal Luster Overlaminate 8519 and 8520 8519/8520 4524
3M Screen Printing Ink Series 1900 and Overprint Clear VI0402 1900 2501
3M Piezo Inkjet Protective Clear 8530 8530 4565
Piezo Inkjet Printing 3M Scotchcal Luster Overlaminate 8524 8524 3577
Instruction Bulletins Design of graphics 2.1 5501
Scoring and cutting 4.1 6501
Screen printing with ink series 1900 3.12 6012
Transferring and laminating electrostatically printed images 4.7 6507
Using toner series 8700/8800 4.12 6512
Cold roll lamination 4.22 6522
A Guide to Understanding and Applying Graphics to Common Indoor and
Outdoor Wall Surfaces
5.37 7037
Storage, handling, maintenance, removal 6.5 7505
Warranties 3M Graphics Center Warranty Brochure 9503
Scottchprint is a trademark or registered trademark of 3M Company in the U.S. and other countries. 3M, MCS, and Scotchcal are
trademarks of 3M Company.
Bulletin Change Summary Important information on expected performance life has been added to page 2. This bulletin
now covers both piezo inkjet film and electrostatic film for textured surfaces.
Commercial Graphics Division 3M Canada 3M México, S.A. de C.V 3M Puerto Rico, Inc.
3M Center, Building 220-12E-04 P.O. Box 5757 Av. Santa Fe No. 55 Puerto Rico Industrial Park
PO Box 33220 London, Ontario Col. Santa Fe, Del. Alvaro Obregón P.O. Box 100
St. Paul, MN 55144-3220 USA Canada N6A 4T1 México, D.F. 01210 Carolina, PR 00986-0100
General Info. 1-800-374-6772 1-800-265-1840 52-55-52-70-04-00 787-620-3000
Technical Info. 1-800-328-3908 Fax 519-452-6245 Fax 52-55-52-70-22-77 Fax 787-750-3035
Fax 1-651-736-4233
Fax-on-Demanddocument number: 3575 Fax-on-Demand ordering: 1-800-364-0768 US/Canada; 1-651-732-6506 International
www.3mgraphics.com 3M 2007. All rights reserved.
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