3M™Scotchmate™Reclosable Fasteners
SJ3526N and SJ3527N Family
Nylon Hook and Loop
Typical System
Performance
Characteristics
Note: The follo wing information is not product release requirements, nor product specifications. Rather
this data repr esent typical performance using standard test methods. This is intended for use as a
guide to assist in selection of 3M™ Scotchmate™ Reclosable Fasteners for further evaluation.
Customer specifications should not be based solely on the data presented in this document.
Unless stated, typical system performance characteristics were measured under contr olled laborato ry
conditions of 72°F (22°C) and 50% relati v e humidity. The user should ev aluate pr oducts in the actual
application to ensure suitable performance for the intended use.
System P erf ormance(a)
3M™ Scotchmate™ Reclosable Fasteners
SJ3526N Hook SJ3527N Loop
engaged to engaged to
SJ3527N Loop Dual Lock™ SJ3540(b)
TENSILE (Rigid to Rigid Adherends) lbsF/sq inch (Newtons/cm2):
Dynamic Tensile Engagement Strength < 1.0 (0.69) < 1.0 (0.69)
Dynamic Tensile Disengagement(c) 13.5 (9.3) 50.5 (34.8)
Static Tensile Holding P o w er Holds 1.1#/in
2
(77.5 grams/cm
2
) for indicated time and temper ature
100°F 7,300 minutes 8,500 minutes
120°F 1,000 minutes 2,800 minutes
158°F 300 minutes 200 minutes
100°F/100% RH 4,400 minutes 5,800 minutes
SHEAR (Rigid to Rigid Adherends) lbsF/sq inch (Newtons/cm2):
Dynamic Shear (1" x 1" overlap)(c) 24.5 (16.9) 93.2 (64.3)
Static Shear Holding Power Holds 1.1#/in
2
(77.5 grams/cm
2
) for indicated time and temper ature
100°F 10,000 minutes 10,000 minutes
120°F 1,000 minutes 4,300 minutes
158°F 400 minutes 400 minutes
100°F/100% RH 10,000 minutes 10,000 minutes
INITIAL PEEL AND CLEAVAGE(c) Pounds/inch width (grams/cm width)
“T” P eel Strength (Flexible to Flexible) A ve 1.7 (300) 6.0 (1,070)
90° Peel Strength (Fle xib le to Rigid) Ave 1.5 (270) 4.9 (880)
Cleavage Peel Strength (Rigid to Rigid) 7.9 (1,400) 31 (5,500)
ENGAGED THICKNESS(d)
(Nominal without liner) Inches (cm) 0.14 (0.36) 0.20 (0.51)
CLOSURE CYCLE LIFE(e) 5,000 50
SHELF LIFE Eighteen months from date of manufacturing when
stored in original packaging at 72°F (21°C)
and 50% 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.
a) System performance tests are determined by measuring the performance of the entire mated reclosable fastener system consisting of
two non-anodized aluminum plates joined together with the indicated fasteners. The “T” peel test only measures the closure performance
per ASTM D5170 and was not adhered to aluminum panels. The 90° peel has one of the mated fasteners attached to a non-anodized
aluminum plate while the other mated fastener is not attached to a adherend and is disengaged at a 90° angle.
b) The use of 3M™ Scotchmate™ Loop Reclosable Fasteners engaged to 3M™ Dual Lock™ Reclosable Fasteners provides increased
strength over standard Scotchmate reclosable fasteners, with a limited number of reclosures compared with Scotchmate systems. Due
to the very high strength of Scotchmate reclosable fasteners mated to Dual Lock reclosable fasteners, extra care should be given to
ensure the maximum bond strength is obtained to the adherends being joined. Failure to obtain bond strengths sufficiently high to the
adherend may cause the fastener’s adhesive to release from the adherend.
c) 3M™ Scotchmate™ Reclosable Fasteners SJ3526N and SJ3527N and SJ3540 are engaged with firm pressure and disengaged, peeled
or cleaved at the rate of 12 inches (305 mm) per minute.
d) The engaged thickness was measured using a 0.5" diameter pressure foot supporting a 34 gram weight. Engaged thickness per given
fastener area will decrease when compressed or increase with no load or when the engaged are separated in tensile.
e) Cycle Life is the number of cycles (openings and closings) that the fastener is subjected to while maintaining 50% or greater of the initial
peel value.
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