SJ3000 Series Datasheet by 3M

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Reclosable Fastener SJ3000
Thin Hook and Loop Back-to-Back
Product Information September, 2010
Product Description 3M™ Reclosable Fastener SJ3000 is a thin back-to-back fastener that offers closure
alternatives to plastic wire, tape, string, rubber bands and other types of closure
systems used to secure bundles of items. Reclosable Fastener SJ3000 offers design
flexibility, fast product assembly and improved product performance in many
applications.
One side of the thin fastener strip is covered with tiny translucent polypropylene
hooks, approximately 1400 per square inch (220/sq. cm.). These hooks can engage
with thousands of soft, pliable, thin polyester loops on the reverse side providing
for a limited number of openings and closings (cycles). The thin loop is designed to
easily engage with reclosable fastener SJ3000 hook and possibly other small hooks.
The hook may also engage with many other loop materials. This forms a quick
fastening attachment system. Simply pull the strips apart to disengage.
Product Construction Note: The following information is not product release requirements, nor product specification
limits. Rather, this data represents typical performance using standard test methods. This
is intended for use as a guide to assist in selection of 3M™ Reclosable Fasteners for further
evaluation. Customer specifications should not be based solely on the data presented in
this document. It is recommended that the customer test the product under expected use
conditions in the desired application to determine actual suitability and performance.
Fastener Product 3M™ Reclosable Fastener SJ3000
Material of Construction
Hook Polypropylene
Loop Polyester
Adhesive None
Standard Colors Red, Black, White
Thickness - unmated 0.027" (0.69 mm)
- engaged 0.061" (1.55 mm)
Weight oz/in2 (g/cm2) 0.005 oz/in2 (0.021 g/cm2)
Thickness was measured using a 0.5" diameter pressure foot supporting a 34
gram
weight. Actual thickness
will decrease when a load is applied or the product
is
compressed and will increase if a load is
removed.
3M Reclosable Fastener SJ3000
Thin Hook and Loop Back to Back
Typical Performance
Properties and
Characteristics
Unless stated, typical system performance characteristics were measured under controlled laboratory
conditions of 72°F ± 5°F (22°C ± 2.7°C) and 50% ± 10% relative humidity. The user should evaluate
products in the actual application to ensure suitable performance for the intended use.
Fastener Product 3M™ Reclosable Fastener SJ3000
Performance tests are determined by measuring the performance of the
entire
reclosable
fastener when
the hook on one side is engaged to the loop on the other side of the fastener.
CLOSURE SHEAR (Rigid to Rigid Substrates) PoundsF/inch2
(Newtons/cm
2
)
Dynamic Shear (1/2" x 1" overlap) 31 (21.6)
Static Shear Holding Strength Holds 1.1#/in2 (77.5 grams/cm2) for indicated
time
and
temperature
100°F
(38°C)/100%
R.H.
10,000
minutes
120°F (49°C) 10,000 minutes
158°F (70°C) 10,000 minutes
200°F (93°C) 10,000 minutes
PEEL at 12 inches (305mm) per minute PoundsF/inch width
“T” Peel Force (Flexible to Flexible) 2.2
90° Peel Force (Flexible to Rigid) - Average 3.0
CLOSURE CYCLE LIFE 15
Cycle life is the number of cycles (openings and closings) that the fastener is subjected to while maintaining
50% or greater of the 2nd closure peel values. Initial peels are slightly higher
SHELF LIFE Twenty four months from date of
manufacturing
when stored in original packaging at 70°F ± 10°F
(21°C ± 5.5°C) and 50% ± 10% relative humidity.
Note: Long Term Static Load: Conditions such as temperature variations,
engagement
area, closure pressure
and vibrations or side to side movement after engagement
or
exposure to prolonged periods of moisture,
ultraviolet or other environmental factors
can
affect the closure strength and long term static load performance.
Reclosable
fasteners
may slip or creep in the direction of the static load forces when subjected to static
loads
at
temperatures or weights greater than indicated. The user is responsible for
designing
the amount of fastening
area based upon the specific conditions for the application.
Four
square inches of fastening area per pound
(57.3 sq. cm/kilogram) of static load
is
suggested as a starting point for such
evaluations.
Additional
Performance
Characteristics
Chemical Resistance: The polypropylene hook and polyester loop resist incidental attack
by most common solvents and alkaline solutions. Acid solutions may cause deterioration
of the loop. Small amounts of oils, mold release agents would not be expected to cause
performance issues when in contact with 3M™ Reclosable Fastener SJ3000, except for
the possible difficulty in starting a wrap.
Plasticizer Resistance: The polypropylene hook and polyester loop should have good
resistance to direct contact with most plasticized materials.
Flammability Resistance: Reclosable Fastener SJ3000 will not pass common
flammability tests when tested unattached to an substrate. If you need reclosable
fasteners to meet many of the standard flammability tests (such as FAR 25.853,
FMVSS-302), you may want to consider using 3M™ Reclosable Fasteners
SJ3418FR/19FR, SJ3518FR/19FR and SJ3486FR/87FR.
Water (Humidity) Resistance: Closure strength should be minimally affected by high
humidity conditions.
- 2 -
3M Reclosable Fastener SJ3000
Thin Hook and Loop Back to Back
Attachment Techniques The following information is intended to assist the designer considering the use of
3M™ Reclosable Fastener SJ3000. It is recommended that the user evaluate 3M
products to determine whether they are fit for a particular purpose and suitable for
the users materials, method of application and desired end use.
Reclosable fastener SJ3000 can easily be cut to desired dimensions and shapes per
application need. The product is often used in rectangular strips 1/2" width by
appropriate length required to wrap at least one and one half times around item(s)
being bundled plus a 0.5 inch (1.3 cm) tab or flag. A common formula for
determining desired length is:
(Bundle or item circumference in inches ) x (1.5) + 0.5 inch
(Bundle or item circumference in centimeters) x (1.5) + 1.3 cm
While reclosable fastener SJ3000 is more flexible than many common bundling
materials, care should be exercised in wrapping bundles that have very small
diameters, lest flagging of the end will occur, possibly leading to premature
disengagement. To prevent premature or undesirable flagging a small quantity of a
curable liquid adhesive, hot melt, epoxy or similar material could be applied
joining the exposed end of the fastener with the underlying fastener. This method
will make it more difficult to easily disengage the fasteners.
Rounding the corners can reduce the possibility of edge lifting or flagging while
improving the overall appearance of the fastener on the finished product.
Mechanically securing the corners of the fastener with rivets, staples, screws, etc.
may reduce the closure performance.
Material Surface Preparation: Textured or rough surfaces, especially those that
may engage with a hook or loop can allow easier starting of a wrap around an
object(s). Very smooth surfaces may cause slippage or difficulty in starting the
wrap. In that case the surface could be roughened, or small strips of 3M™
Reclosable Fasteners SJ3506 or SJ3507 could be first applied to the surface.
Surfaces containing oils, mold release agents or other coatings and materials that
can create a slippery surface should be avoided due to possible difficulty in getting
the wrap started, or slipping in usage. It is recommended to remove any surface
contaminants that may cause slippage or problems with starting the wrap by using a
method suited for the type and quantity of surface slip agent present.
Engagement Procedure: Highly porous, soft or fragile materials such as some
vegetables or foam materials may crush or collapse if too high of a pressure is
applied during bundle wrapping. Approximately 2 pounds per inch width (0.4
kilograms per centimeter width) is required for engaging reclosable fastener
SJ3000 to itself. For all applications, it is important to ensure that an acceptable
amount of overlap at the end of the fastener is provided to prevent premature
unwrapping or flagging.
The most common technique for attaching reclosable fastener SJ3000 is to wrap
the product upon itself, forming the closure system to bundle items together,
provide surface protection or to secure items during transport. To ensure full
fastener strength the fastener should be completely overlapped, not spiral would
unless the reduced engaged surface area is taken into account.
- 3 -
3M Reclosable Fastener SJ3000
Thin Hook and Loop Back to Back
Application Ideas 3M™ Reclosable Fastener SJ3000 can provide a firm closure system used to secure
bundles of items or hold items in packaging during shipping or storage. Additionally,
this product, in combination with 3M™ Reclosable Fasteners SJ3506 or SJ3507
could be used as a removable roll wrap for starting pull through of textile and similar
materials. Wrapping a variety of surfaces can provide a removable protection.
Because product performance will depend on actual conditions within any specific
application, it is essential that the user evaluate the 3M product to determine
whether it is fit for a particular material purpose and suitable for the users method
of application.
Reclosable Fastener SJ3000 can be evaluated for use in:
Securing wire bundles Labeling garden plants/temporary identification
During assembly, inspection, repair Write-on loop for weather resistant label
Abrasion protection (loop against wires) Box Closures
Securing light-weight items in shipping containers
Certification/
Recognition MSDS: This product is not subject to the MSDS requirements of the Occupational Safety and Health
Administration’s Hazard Communication Standard, 29 C.F.R. 1910.1200(b)(6)(v) and therefore 3M has
not prepared a MSDS for this product. However, use or processing of the product in a manner not in
accordance with the directions for use may affect its performance and present potential health and
safety hazards.
TSCA: This product is defined as an article under the Toxic Substances Control Act and therefore, it is
exempt from inventory listing requirements.
Technical Information The technical information, recommendations and other statements contained in this document are
based upon tests or experience that 3M believes are reliable, but the accuracy or completeness of such
information is not guaranteed.
Product Use Many factors beyond 3M’s control and uniquely within user’s knowledge and control can affect the use
and performance of a 3M product in a particular application. Given the variety of factors that can affect
the use and performance of a 3M product, user is solely responsible for evaluating the 3M product and
determining whether it is fit for a particular purpose and suitable for user’s method of application.
Warranty,
Limited Remedy,
and Disclaimer
Unless an additional warranty is specifically stated on the applicable 3M product packaging or product
literature, 3M warrants that each 3M product meets the applicable 3M product specification at the time
3M ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR
IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY
OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE.
If the 3M product does not conform to this warranty, then the sole and exclusive remedy is, at 3M’s
option, replacement of the 3M product or refund of the purchase price.
Limitation of Liability Except where prohibited by law, 3M 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 -
ISO/TS 16949:2002
This Industrial Adhesives and Tapes Division product
was
manufactured under a 3M quality system
registered to ISO
9001:
2000 and ISO/TS 16949:2002
standards.
Industrial Adhesives and Tapes Division
3M Center, Building 225-3S-06
St. Paul, MN 55144-1000
800-362-3550 • 877-369-2923 (Fax)
www.3M.com/industrial
Recycled Paper
40% pre-consumer
10% post-consumer
- 4 -
3M is a trademark of 3M Company
Printed in U.S.A.
©3M 2010 70-0709-4000-5 (9/10)

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