B-7641 is available in following dimensions
|
Sizes
Inches
|
Size mm
|
Minimum ID
Supplied (mm)
|
Maximum ID
Recovered (mm)
|
Recovered Wall
Thickness (mm)
|
|
3/32
|
2.4
|
2.4
|
1.2
|
0,43-0,60
|
|
1/8
|
3.2
|
3.2
|
1.6
|
0,55-0,72
|
|
3/16
|
4.8
|
4.8
|
2.4
|
0,55-0,72
|
|
¼
|
6.4
|
6.4
|
3.2
|
0,65-0,80
|
|
3/8
|
9.5
|
9.5
|
4.7
|
0,65-0,75
|
|
½
|
12.7
|
12.7
|
6.4
|
0,65-0,75
|
|
¾
|
19.1
|
19.1
|
9.5
|
0,70-0,85
|
|
1
|
25.4
|
25.4
|
12.7
|
0,85-1,00
|
|
1 1/2
|
38.1
|
38.1
|
19.1
|
0,90-1,05
|
|
2
|
50.8
|
50.8
|
25.4
|
0,90-1,05
|
Shrink method: Any industrial grade heat gun may be used to shrink B-7641 HeatexTM Markers
|
PHYSICAL PROPERTIES
|
TEST METHODS
|
AVERAGE RESULTS
|
|
Tensile Strength
|
ASTM D 638
|
10 N/mm²
|
|
Elongation at break
|
ASTM D 638
|
200%
|
|
Longitudinal Change
|
ASTM D2671
|
+5%, - 10%
|
|
Specific gravity
|
ASTM D 792
|
1.35 g/cm³
|
|
Water absorption
|
ASTM D 570
|
0.15%
|
|
ELECTRICAL PROPERTIES
|
TEST METHODS
|
AVERAGE RESULTS
|
|
Dielectrical strength
|
ASTM D 2671
|
20 kV/mm
|
|
Volume Resistivity
|
ASTM D 257
|
10Ω14 ohm.cm
|
|
TEMPERATURE PROPERTIES
|
TEST METHODS
|
AVERAGE RESULTS
|
|
Heat shock 4 hours at 150°C
|
ASTM D 2671
|
No dripping, cracking of flowing
|
|
Heat aging 168 hours 150°C
|
ASTM D 638
|
160 to 180%
|
|
Low temperature
Flexibility –30°C
|
ASTM D2671C
|
No cracking
|
|
Flammability
|
ASTM D 635
|
Pass
|
|
Continuous operation temperature
|
|
-30°C to 105°C
|
|
Minimum shrink temperature
|
|
> 90°C
|
Performance properties were tested on B-7641 white and yellow sleeves printed with the R4300 Series, R6000 Series, R6000HF, R6600 Series and Brady 356126 thermal transfer ribbons. The results are the same for both colors and ribbons unless noted. Sleeves were tested shrunk on the appropriate sized wires.
|
PERFORMANCE PROPERTIES
|
TEST METHODS
|
TYPICAL RESULTS
|
|
UV Light Resistance
|
1000 hours in UV Lightchamber and Q-Sun Xenon Test Chamber
|
No visible effect
|
|
Weatherability
|
1000 hours in QUV weatherometer and Xenon Arc Weatherometer
|
No visible effect
|
|
Humidity resistance
|
1000 hours at 37°C/95% Relative humidity
|
No visible effect
|
|
Print Adherence per SAE-AS81531 (sec. 3.4.2)
|
SAE-AS81531 (Sec 4.6.2)Samples tested after unrestricted shrink at 200°C for 3 minutes
20 eraser rubs with hard hand pressure
|
Pass
|
|
Solvent Resistance per SAE-AS81531 (3.4.3)
Solution A
Solution C
Solution D
|
Samples tested after unrestricted shrink at 200°C for 3 minutes
MIL-STD-202, Method 215K
3 cycles of 3 minute immersions in specified fluids followed by toothbrush rub after each immersion
|
Pass
|
Solution A : 1 part isopropyl alcohol, 3 parts mineral spirits
Solution B : deleted from MIL-STD-202, Method 215J
Solution C : BIOACT®EC-7RTM terpene defluxer
Solution D : 42 parts water, 1 part polypropylene glycol monomethyl ether, 1 part monoethanolamine at 70°C
|
PERFORMANCE PROPERTIES
|
TEST METHOD
|
|
CHEMICAL RESISTANCE
|
SEE BELOW
|
Sleeves were printed with R4300 Series, R6000 Halogen Free Series, R6000 Series, R6000HF series, R6600 Series and Brady 356126 thermal transfer ribbons, allowed to dwell 24 hours prior shrinking on appropriate sized wires and testing. Testing was conducted at room temperature and consisted of five cycles of 10 minute immersions in the specified chemicals followed by 30 minute recovery periods. After the final immersion, the samples were removed from the test fluid and the printed image rubbed 10 times with a cotton swab saturated with the test fluid. The rating scale below shows the effect to the quality of print for each sample.
Unless otherwise noted, there was no visible effect to the printed image prior to rubbing for the above ribbons.
|
CHEMICAL REAGENT
|
APPEARANCE WITHOUT RUB
|
APPEARANCE OF PRINT AFTER RUB
|
|
R6000 /
R6000 Halogen Free
|
R6000HF
|
R6600
|
R4300 and 356126 Ribbon
|
|
Isopropyl Alcohol
|
1
|
4
|
1-2
|
1
|
1-2
|
|
JP-4 Jet Fuel
|
1
|
5
|
3
|
1*
|
3-4*
|
|
Diesel (gasoil)
|
1
|
5
|
3
|
1-2
|
3-4
|
|
Mil 5606 Oil
|
1
|
5
|
2
|
1
|
3
|
|
De-ionized Water
|
1
|
1
|
1
|
1
|
1
|
|
MEK
|
1
|
5
|
3
|
2-3
|
3
|
|
Gasoline
|
1
|
4
|
4
|
1
|
4
|
|
Motoroil SAE 15W20
|
1
|
2
|
1
|
1
|
4
|
|
Skydrol® 500B-4
|
1
|
4
|
1-3
|
1
|
3
|
|
10% Salt water solution
|
1
|
1
|
1
|
1
|
1
|
|
Acetone
|
1
|
4
|
4
|
1-2
|
4
|
|
Toluene
|
1
|
4
|
5
|
5
|
5
|
|
Mineral Spirits
|
1
|
5
|
4
|
5
|
5
|
|
Brake fluid – DOT 4
|
1
|
4
|
1**
|
4
|
4
|
Rating Scale:
1=no visible effect
2=slight fading or print removal
3=moderate fading or print removal (print still legible)
4=severe fading or print removal (print illegible or just barely legible)
5=complete print removal
NP=print removed prior to rub
*tested in JP-8 Jet fuel
**tested in Brake fluid - DOT 3
Product testing, customer feedback, and history of similar products, support a customer performance expectation of at least two years from the date of receipt for this product as long as this product is stored in its original packaging in an environment below 80°F (27°C) and 60% RH . We are confident that our product will perform well beyond this time frame. However, it remains the responsibility of the user to assess the risk of using such product. We encourage customers to develop functional testing protocols that will qualify a product's fitness for use, in their actual applications.
