SJ-3550 (BLACK) 1/2" 3M, SJ-3550 (BLACK) 1/2" Datasheet - Page 5

• Manufacturer Part Number: SJ-3550 (BLACK) 1/2"
• Description: DUAL LOCK PRESS 1/2"X50YD BLK250
• Manufacturer: 3M
• Series: Dual Lock™r

Specifications of SJ-3550 (BLACK) 1/2"

• Wire/cable Tie Type: Interlocking Stems
• Bundle Diameter: Variable
• Length: 150' (45.7m)
• Width: 0.500" (12.70mm)
• Mounting Type: Adhesive
• Features: UV Stabilized
• Color: Black
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Tensile Strength: -
• Other names: 21200-65815; 70006428026; 70070521094; SJ355012-50

Dual Lock
SJ3551 (Type 400) • SJ3552 (Type 170) • SJ3550 (Type 250)
Application
Ideas
Attachment
Techniques
(continued)
Attachment Methods: There are typically six different methods for attaching 3M™ Dual Lock™
Reclosable Fastener to various substrates. For complete details on techniques and options for
attaching Dual Lock or Scotchmate reclosable fasteners, please see the techincal bulletin on
Attaching Scotchmate and Dual Lock reclosable fasteners (70-0709-3929-6). The most important
technique for attaching Dual Lock reclosable fasteners SJ3551, SJ3552 and SJ3550 to various
substrates is use of its pressure sensitive adhesive.
Pressure Sensitive Adhesive attachment: The fasteners and substrates should have equilibrated
for a minimum of one hour at temperatures of 68° to 80°F (20° to 27°C) before application.
Generally these adhesive backed fasteners should be applied to surfaces that are smooth, dry and
free of oils, mold release agents or other surface contaminants.
The substrate surface should be cleaned to remove any surface contaminants with an appropriate
cleaning method for the customer’s substrate, type and quantity of surface contaminants that need to
be removed. Note: When using solvents, extinguish all ignition sources, including pilot lights, and
follow the manufacturer’s precautions and directions for use.
After the substrate surface has been cleaned and dried, the liner is removed from the fastener
adhesive and without touching the adhesive, the fastener’s adhesive is applied to the surface using
light finger pressure. The fastener must be rolled down, to increase contact of the adhesive with
the substrate’s surface. Extra care must be exercised when rolling down Dual Lock reclosable
fasteners to prevent bending of the stems which can compromise the closure strength. The
following two methods allow adequate pressure to be applied to the Dual Lock reclosable fastener
without damaging the stems.
The first method uses a hand roller, with the roller wheel covered with a Dual Lock reclosable
fastener type 170 such as 3M™ Dual Lock™ Reclosable Fastener SJ3542. The Dual Lock
reclosable fastener covered roller is rolled over the Dual Lock reclosable fastener applied to the
substrate, engaging and disengaging the two Dual Lock reclosable fastener pieces.The hand roller
can be used for many applications.
The second method consists of engaging a strip of plainback Dual Lock reclosable fastener type
170 such as 3M™ Dual Lock™ Reclosable Fasteners SJ3442 or SJ3742 to the previously attached
adhesive backed Dual Lock reclosable fastener. The backside of the plainback material can now be
rolled down using a rubber roller, with no Dual Lock reclosable fastener on the roller, fully
engaging the Dual Lock reclosable fastener. After rolling down three times in each direction, the
strip of plainback Dual Lock reclosable fastener can be removed and used to roll down the next
piece of Dual Lock reclosable fastener in a similar manner.
The pressure-sensitive adhesive bonds to the substrate on contact and parts can be handled
immediately. Adhesive bond strength increases with time, pressure and temperature. A minimum of
twenty four hours dwell time is recommended before applying a load or disengaging assembled
parts. Recommended time at room temperature to achieve maximum bond strength is 72 hours.
3M™ Dual Lock™ Reclosable Fasteners SJ3551, SJ3552 and SJ3550 can replace conventional
mechanical fasteners in a wide range of assembly and attachment applications where reclosability
is desired. They provide a firm adhesive bond to a wide variety of surfaces, including, but not
limited to those listed below. 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 user’s method of application.
D ual Lock reclosable fasteners SJ3551, SJ3552 and SJ3550 have shown to be useful for:
TM
Glass
Bare Metal
Not suitable for powder coated paints and low surface energy substrates such as polypropylene, unless
surface modification, such as use of a primer, is made.
Attaching window and door trim panels
Interior trim
Reclosable Fasteners
Sealed Wood
- 5 -
Acrylic
Polycarbonate
Attaching accessories and equipment
Vibration and sound dampening control
Plastics
Rigid Vinyl
Polystyrene