• Strain relief
• Expansion ratio as high as 3:1
• Available in flame retarded material
• Medium and thick-wall insulation
• Abrasion protection
Thermoform
AST/AST-FR
Adhesive sealing
heat-shrinkable tubing
Thermoform adhesive sealing tubing
(AST) and flame retarded adhesive
sealing tubing (AST-FR) provide a simple,
positive splice-sealing method that offers
greater protection under adverse
environmental conditions.
Ordering information
Supplied with standard sealant, the
tubing provides waterproofing and
environmental protection in underwater
or underground applications. Supplied
with thermoplastic adhesive, the tubing
not only waterproofs, but also provides
mechanical strain relief. The tubing has
excellent insulating, abrasion-resisting
and strain-relief properties.
W
D
d
Internal diameter
D (min)
Expanded
as supplied
mm
7.7
10.2
19.1
19.1
33.1
33.1
43.2
43.2
50.8
50.8
68.6
76.2
114.3
d (max)
Recovered
after heating
mm
2.6
3.9
5.6
5.6
9.6
9.6
12.7
12.7
19.1
19.1
22.9
31.8
44.5
Wall thickness
W (nom)
Total wall recovered
after heating
mm
1.5
1.5
1.5
2.4
2.7
3.0
3.0
3.6
3.0
3.9
3.9
3.9
3.9
Standard
length (nom)
mm
150
150
150, 300
150, 300
150, 300
150, 300
150, 300
150, 300
150, 300
300
300, 450, 600
600
300, 450, 600
Size description
8/3
10/4
19/6 M
19/6
33/10 M
33/10
43/13 M
43/13
51/19 M
51/19
69/23
76/32
114/45
‘M’ suffix denotes medium wall availability.
Dimensions apply to uncoated tubing. Allow approximately 1.3 mm for coating.
Tubing with sealant on ends only, without sealant, or of non-standard lengths is available
subject to special order.
Ordering example:
AST/AST-FR 114/45 (M)
060
/226NE -0
Colour
0=Black (standard colour)
Other colours available on special order:
2=Red9=WhiteX=Clear*
*AST-FR is not available in clear
Pre-coat adhesive/sealant options
/97 =hot melt adhesive
/226=mastic sealant
Standard length options
015=150 mm
030=300 mm
045=450 mm
060=600 mm
Medium wall tubing option
Size (nomimal expanded and
recovered internal diameter)
Product description
Note:
Ordering example:
Length 600mm for expanded internal diameter 76 + 114mm are supplied Needle Expanded,
hexagon in profile, circular when recovered.
AST-114/45 - 060/226NE - 0
Thermoform
Temperature rating
Operating temperature range:
Minimum recovery temperature:
-55°C to +90°C
+120°C
Specifications
Type
AST-FR
AST
/226 (S-1278)
/97(S-1297)
Raychem
RW 2011
RW 2011
RW 2020
RW 2019
Performance
Thermoform AST is a black, crosslinked, polyolefin-based material. AST-FR is flame retarded and
heat resistant.
Test method
Mechanical
Tensile strength (min)
Ultimate elongation (min)
2% secant modulus (max)
Heat ageing
Tensile strength (min)
Ultimate elongation (min)
Heat shock
4 h at 225°C
Low temperature flexibility
4 h at -55°C
Electrical
Dielectric strength
Volume resistivity (min)
Flammability
Flammability (method B)
Chemical
Corrosion
Water absorption (max)
Specific gravity (max)
Fungus resistance
Colour stability
Fluid resistance
(24 h at room temperature)
De-icing fluid (MIL-A-8243)
Hydraulic fluid (MIL-H-5606)
JP-8 (MIL-T-83133)
Lubricating oil (MIL-L-7808)
Lubricating oil (MIL-L-23699)
5% NaCI (0-S-1926)
After immersion in the above fluids:
Tensile strength (min)
Ultimate elongation (min)
ASTM D638
ASTM D638
5 Mpa
100%
5 Mpa
100%
MIL-I-23053/15A
ASTM D570
ASTM D1505
ASTM G21
MIL-I-23053/15A
MIL-I-23053/15A
Pass
0.5%
1.5
≤
1
Pass
Pass
0.5%
1.1
N/A
Pass
MIL-I-23053/15A
15 sec
N/A
ASTM D2671
ASTM D876
7.9 MV/m
10
13
ohm.cm
7.9 MV/m
10
13
ohm.cm
MIL-I-23053/15A
Pass
Pass
MIL-I-23053/15A
Pass
Pass
ASTM D638
ASTM D638
ASTM D882
ASTM D2671, D412
ASTM D638
ASTM D638
8.4 Mpa
200%
170 Mpa
(168 h at 175°C)
7 Mpa
100%
(168 h at 150°C)
7 Mpa
100%
8.4 Mpa
200%
AST-FR
AST
Raychem and Thermoform are trademarks of Raychem Interconnect, a division of Tyco Electronics
Corporation.
Raychem Interconnect
Cheney Manor Industrial Estate
Swindon, Wiltshire SN2 2QE
Tel: (44)-1793-528171
Fax: (44)-1793-616652
All of the above information, including illustrations, is believed to be reliable. Users, however, should
independently evaluate the suitability of each product for their application. Tyco Electronics makes no
warranties as to the accuracy or completeness of the information and disclaims any liability regarding its use.
Tyco Electronics only obligations are those in the Standard Terms and Conditions of Sale for this product and in
no case will Tyco Electronics be liable for any incidental, indirect or consequential damages arising from the
sale, resale, use or misuse of the product. Tyco Electronics Specifications are subject to change without notice.
In addition Tyco Electronics reserves the right to make changes in materials or processing, without notification
to the Buyer, which do not affect compliance with any applicable specification.
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