Description: DAFLON SH421 Shrinkable TFE Tubing recovers to approximately 25% of its expanded size when heated to the gel point (621°F). Thus it is now possible to use shrinkable TFE tubing, with its excellent chemical and physical properties, over objects which require more than the standard 2:1 shrink down ratio.
Note: Tubing should be allowed to recover at least 50%.
Conforms to Mil-I-23053/12, Class 5, and AMS-3584.VW-1.
This series is RoHS compliant.
| DAFLON 4:1 Shrinkable PTFE Tubing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| DABURN Cat. No. |
Minimum I.D. As Supplied |
Recovered (After Heating) | Standard Package |
MIL. Spec. 23053/12 |
|||||
| I.D. Max | Nom. Wall Thickness* | ||||||||
| Size | IN. | MM. | IN. | MM. | IN. | MM. | |||
| SH421-5/64 | 5/64" | 0.078 | 1.98 | 0.025 | 0.64 | 0.009 | 0.23 | 100' | -501 |
| SH421-1/8 | 1/8" | 0.125 | 3.18 | 0.038 | 0.97 | 0.010 | 0.25 | 100' | -502 |
| SH421-3/16 | 3/16" | 0.187 | 4.75 | 0.050 | 1.27 | 0.012 | 0.30 | 100' | - |
| SH421-1/4 | 1/4" | 0.250 | 6.35 | 0.063 | 1.60 | 0.012 | 0.30 | 100' | -503 |
| SH421-5/16 | 5/16" | 0.312 | 7.92 | 0.079 | 2.00 | 0.012 | 0.30 | 100' | - |
| SH421-3/8 | 3/8" | 0.375 | 9.53 | 0.096 | 2.44 | 0.012 | 0.30 | 100' | -504 |
| SH421-1/2 | 1/2" | 0.500 | 12.7 | 0.144 | 3.66 | 0.015 | 0.39 | 100' | -505 |
| SH421-5/8 | 5/8" | 0.625 | 15.88 | 0.178 | 4.52 | 0.015 | 0.39 | 100' | -506 |
| SH421-3/4 | 3/4" | 0.750 | 19.05 | 0.225 | 5.72 | 0.015 | 0.39 | 100' | -507 |
| SH421-7/8 | 7/8" | 0.872 | 22.23 | 0.244 | 6.20 | 0.015 | 0.39 | 100' | - |
| SH421-1" | 1" | 1.000 | 25.40 | 0.278 | 7.06 | 0.015 | 0.39 | 100' | -508 |
| SH421-1 1/4" | 1 1/4" | 1.250 | 31.75 | 0.347 | 8.81 | 0.015 | 0.39 | 100' | -509 |
*When full recovery is allowed.
® Dupont
|
Standard Package:
|
100' in 2-4 ft lengths. Tubing may be ordered cut to length. |
|---|---|
|
Standard Color:
|
Natural (clear). |
| Properties | |
|
Operating Temperature:
|
-75°C TO +250°C/-85°F to +500°F |
|
Shrinking Temperature Nom:
|
327°C/621°F |
|
Shrink Ratio:
|
4:1 |
|
Longitudinal Change, Max.:
|
+20% |
To Additional TFE Heat Shrink.
To 4:1 Heat Shrinkable Polyolefin Tubing.
To Heat Shrink X-Reference Chart.
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