Datasheet

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Attachment Guide
PRESSURE SENSITIVE ADHESIVE ATTACHMENT:
The adhesive system provides reliable bonding to a wide variety of materials:
Bare Metals Many Plastics: ABS
Painted Metals Acrylic
Glass Polycarbonate
Fiberglass Polystyrene
Sealed Wood Rigid Vinyl
Structural Composites Powder Coated Paints
Glass
Attachment
Techniques
The following information is intended to assist the designer considering the use
of 3M™ Dual Lock™ Low Profile Reclosable Fasteners SJ4570 and SJ4575. Final
product performance depends on actual conditions, such as fastener selected, the
conditions in which the fastener is applied, the time and environmental conditions in
which it is expected to perform. Because many of these factors are uniquely within
the user’s knowledge and control, it is required 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 and desired end use.
As a general rule, four square inches of fastener area per pound (57.3 square
centimeters per kilogram) of static load to be supported is suggested as a starting
point for evaluation. More or less area may be needed depending on specific
conditions or end use applications.
There are typically 6 different methods for attaching Dual Lock low profile
reclosable fasteners to various surfaces. The most important technique for Dual
Lock low profile reclosable fastener is summarized below. For complete details on
techniques and options for attaching 3M™ Scotchmate™ or 3M™ Dual Lock™
Reclosable Fasteners please see the technical bulletin “Attachment of 3M™
Scotchmate™ and 3M™ Dual Lock™ Reclosable Fasteners.”
Pressure Sensitive Adhesive attachment: The fasteners and substrate surfaces
should have equilibrated for a minimum of 1 hour at temperatures of 68°F (20°C)
or greater before application. 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 should be cleaned with an appropriate cleaning method for the
customers substrate(s) and surface contaminant(s) and amount that need to be removed.
NOTE: Be sure to follow the manufacturer’s precautions and directions for use when
using solvents, or other cleaning method.
The liner is removed and without touching the adhesive, the fastener is applied to
the surface using firm roller pressure to help ensure complete adhesive contact to
the substrate. The pressure-sensitive adhesive bonds on contact and parts can be
handled immediately. Adhesive bond strength increases with time, pressure and
temperature. A minimum of twenty four (24) hours dwell is recommended before
applying a load or disengaging. Recommended time to achieve maximum bond
strength is 72 hours (3 days).
3M
TM
Dual Lock
TM
Low Profile Reclosable Fasteners
SJ4570 Clear
SJ4575 Black