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Thermofit
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Tubing
Specification Control Drawing
No: SAS-XXX-X-1030
Slit Adhesive Sleev
Rev: C
Date: February 3, 2000
Page: 3 of 3
If this document is printed it becomes uncontrolled. Check for the latest revision.
Note 1: Adhesive Peel Strength
Polyolefin
Shrink a 6-inch length of size 1-1/2 inch Thermofit RNF-100 Type 2* on a glass-laminated plastic or metal tube, 1
inch in diameter, and approximately 1 foot glass-laminated plastic or metal tube, 1 inch in diameter, and
approximately 1 foot long, with a Thermofit Model 500B Thermogun* or equivalent. Cool to room temperature,
lightly abrade with No. 320 emery cloth, and wipe with MEK. Spiral wrap S-1030
+
tape on the recovered tubing,
with a 50% overlap. Place a strip of 3/4-inch-wide masking tape lengthwise on the adhesive tape to hold it in place
and to provide unbonded ends to insert into the tensile tester.
Abrade and clean the inside surface of three 1-1/2 inch lengths of size 1-1/2 inch RNF-100 Type 2. Place them on
the prepared mandrel so that they are about 1/2 inch apart, and shrink with the Thermogun. Place the assembly in
an
oven for 10 minutes at 150 ± 3°C (302 ± 5°F).
Cool to room temperature, and cut along one edge of the masking tape to remove the bonded assembly from the
mandrel. Cut a 1-inch wide specimen from the center of each double thickness. Insert the unbonded ends in a
tensile tester operating at 2 inches per minute. Make readings of peel strength at every 1/2 inch of jaw separation
after 1 inch initial separation. The average of 5 readings shall define peel strength.
Polychloroprene
Repeat above procedure, except use Thermofit NT-FR* tubing.
*Obtainable from Raychem Corporation.
+S-1030 tape is made from the same lot of material as SAS-1030.
Raychem reserves the right to amend this specification at any time. Users should evaluate the suitability of the product for their application.
