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Tape and Dual Lock Fasteners

Overview
3M makes the worlds best adhesives. Their tape and Dual Lock products are the best in their categories.

3M Tape Overview
3M makes very good gap-seal tape.  It is extremely stretchy which allows it to follow the complex curves around the leading edge of the wing root on my Ventus b (although no tape can form to every curve). Since it's a high quality 3M product, it leaves a minimal amount of residue when removed.  It is made of 5.3 mil (0.13 mm) thick polyethylene.  The only negative to this brand of tape is that the white tape is not as bright white as the Bowlus tape.

Telescoping
Telescoping is the unavoidable tendency for rolls of tape to become skewed over time.  It is caused by internal stresses that are built into the roll during the manufacturing process.  It can be made more extreme by subjecting the rolls to heat or dramatic temperature changes.  I do my best to insure that the rolls telescope as little as possible.  As soon as I receive the tape I put the box on a shelf in my basement where it is cool.  You would think that would keep the rolls from telescoping - but it doesn't.  Some additional telescoping can occur during shipment to the customer - especially when shipped during hot weather.  The good news is that although the telescoping makes the rolls look less attractive, it does not affect the performance of the tape. 

Important Safety Note: "Gap Seal Tape" is Not Designed for Use on Control Surfaces
This stretchy plastic tape is perfect for use sealing fixed gaps - such as the gap between the wing and fuselage.  I do not recommend using it on control surfaces such as the gap between the wing and aileron or the fin and rudder, or the horizontal stabilizer and elevator.  Plastic tape will shrink over time and especially when it gets hot in the sun.  If it is connected to a control surface it may contract over time and not allow full travel of the control surface.  Or as it gets tight it may pull off as it is stretched by the control surface - which could lead to high drag or reduced control of the aircraft as the tape flaps in the wind or changes the airflow over the control surface.  Using plastic tape secured on both sides of a control surface gap is unsafe and may be an illegal modification to the aircraft.


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Part # Description Photo
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Price

Lead-time
3M-Dual-Lock-Low-Prof-Clear-1in

3M Dual Lock, Low Profile, Clear, 1" wide, sold in 1 foot lengths
Great for securing items in the cockpit. This is the thin version. It does not hold with as much force and is not as good in high-temperature applications as the other options below, but it is half as thick as the standard Dual Lock products. It works great in a glider cockpit, but not as well as the options below. Bonds well to metals, glass, many plastics (polypropylene, polyethylene, polycarbonate, ABS) powder coated paints an dmedium to low surface energy materials.

Bonding Strength Comparison
(lowest on the left, highest on the right)
Low Profile/Low Profile < 250/250 < 250/400

Color of interlocking part: Clear
Color of adhesive: Clear
Width: 1 inch
Total Engaged Thickness: 0.098 inches (2.489 mm)
Adhesive: Acrylic
Stem Density: 705 stems/inch
Temperature resistance: 158° F (70° C)
Works best
with itself
Sold by the foot - one side only (ordering 1 foot gets you 6 inches of both sides)




$3 / foot In Stock
3M-Dual-Lock-Black-1in-250

3M Dual Lock, Black, 1" wide, 250 stems/inch, sold in 1 foot lengths
Great for securing items in the cockpit. Works well with 250 (itself) but works the best with a the other side having 400 stems/inch
. It offers better high temperature performance than the low-profile option above and also offers higher holding strength. Bonds well to metals (aluminum, stainless steel), glass, plastics (acrylic, polycarbonate, ABS) and paints.

Bonding Strength Comparison
(lowest on the left, highest on the right)
Low Profile/Low Profile < 250/250 < 250/400

Color of interlocking part: Black
Color of adhesive: White
Width: 1 inch
Total Engaged Thickness: 0.23 inches (5.7 mm)
Adhesive: General Purpose Acrylic
Stem Density: 250 stems/inch
Temperature resistance: 200° F (93° C)
Works well with itself, works best with 400 stems/inch

Sold by the foot - one side only (ordering 1 foot gets you 6 inches of both sides)

See option below for ordering a pair with one side having 250 stems/inch and the other side having 400 stems/inch. That is the option with the strongest holding strength.




$6 / foot In Stock
3M-Dual-Lock-Black-1in-400

3M Dual Lock, Black, 1" wide, 400 stems/inch, sold in 1 foot lengths
Great for securing items in the cockpit. Works well with 250 stems/inch Dual Lock. It does not work as well with itself
. It offers better high temperature performance than the low-profile option above and also offers higher holding strength. Bonds well to metals (aluminum, stainless steel), glass, plastics (acrylic, polycarbonate, ABS) and paints.

Bonding Strength Comparison
(lowest on the left, highest on the right)
Low Profile/Low Profile < 250/250 < 250/400

Color of interlocking part: Black
Color of adhesive: White
Width: 1 inch
Total Engaged Thickness: 0.23 inches (5.7 mm)
Adhesive: General Purpose Acrylic
Stem Density: 400 stems/inch
Temperature resistance: 200° F (93° C)
Works well 400 stems/inch, *** Does not work well with itself ***

Sold by the foot - one side only (ordering 1 foot gets you 6 inches of both sides)

See option below for ordering a pair with one side having 250 stems/inch and the other side having 400 stems/inch. That is the option with the strongest holding strength.




$6 / foot In Stock
3M-Dual-Lock-Black-1in-250-400

3M Dual Lock, Black, 1" wide, Two pieces: 250/400, sold in 1 foot lengths
This is the strongest holding option. It includes 1 foot of 250 stems/inch and 1 foot of 400 stems/inch.
It offers better high temperature performance than the low-profile option above and also offers higher holding strength. Bonds well to metals (aluminum, stainless steel), glass, plastics (acrylic, polycarbonate, ABS) and paints.

Bonding Strength Comparison
(lowest on the left, highest on the right)
Low Profile/Low Profile < 250/250 < 250/400

Color of interlocking part: Black
Color of adhesive: White
Width: 1 inch
Total Engaged Thickness: 0.23 inches (5.7 mm)
Adhesive: General Purpose Acrylic
Stem Density: 250 stems/inch on one side, and 400 stems/inch on the other side
Temperature resistance: 200° F (93° C)
Sold by the foot - includes both sides (ordering 1 foot gets you 2 sides that are each 1 foot long)


+


$12 / foot In Stock
3M-Tape-White-1in Tape, 3Mô Polyethylene Film Tape 483 - White - 1 in
Color: White
Width: 1 inch
Length: 36 Yards
Thickness: 5.3 mil (0.0055") (0.13mm)
Adhesive: rubber resin
Select quantity when ordering
$28 for 1 roll

or

$81 for 3 rolls
($27 each)
Save $1/roll
In Stock
3M-Tape-Clear-1in Tape, 3Mô Polyethylene Film Tape 483 - Clear - 1 in
Color: Clear
Width: 1 inch
Length: 36 Yards
Thickness: 5.3 mil (0.0055") (0.13mm)
Adhesive: rubber resin
Select quantity when ordering
$28 for 1 roll

or

$81 for 3 rolls
($27 each)
Save $1/roll
In Stock

Cumulus Soaring, Inc.
Paul E. Remde

8661 Connelly Place
Savage, Minnesota 55378
USA


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