3
Scotchcast™
Splice Encapsulation
Kits 8980 Series
(with 3M™ High Gel
Encapsulating Compound or
3M™ Scotchcast™ Encapsulating
Compound 4407)
5.0 Closure Assembly
5.1 3M™ Scotchcast™ Kits 8981-
8986
Clean and scuff completely
around the cables sheath for
distances indicated using sheath
scuff.
Clean and
Scuff 6" (152 mm)
Clean and
Scuff 6" (152 mm)
5.2 8981 Closure
Secure one end of spacer web to
the cable with a cable tie. Spiral
wrap spacer web tightly around
splice bundle. Secure end to cable
with cable tie.
Cable Tie
Spacer Web
Cable Tie Cable Tie
Spacer Web
5.3 8982-8986 Closures
Install spacer web and secure in
place with cable ties.
Note: Do not overlap spacer web.
Cable Ties
Spacer Web
5.4 Center the closure over the splice
opening. For 8981 and 8983
kits, position the bubbles over the
shield connectors.
5.5 Trim closure ends so that they
loosely fit on the cable outer
sheath.
3M™ Scotchcast™ Kits 8981-8983
3M™ Scotchcast™ Kits 8984-8986
5.6 Install closures.
Align the tongue and groove and
snap the closure halves together.
HINT: Pliers may be used to
snap the closure halves together,
but be sure that the tongue and
groove are properly engaged
before crimping the flanges.
NOTE TONGUE AND GROOVE
873512
5.7 Wrap the closure ends with DR or 23 rubber tape provided in the kit.
5.8 Install funnels on 3M™ Scotchcast™ Kits 8981-8983.
6.0 Closure Filling
6.1 Position closure:
8981-8983 kits: Slightly incline closure 1/2" (13 mm).
8984-8986 kits: Keep closure level.
6.2 Mix compound per instructions on Uni-pack container guard bag.
Note: For health, safety and disposal information refer to compound label or
Material Safety Data Sheet for encapsulating compound being used.
6.3 Pour compound:
8981-8983 kits: Pour compound into closure through funnel on low end only.
Pour until compound fills closure and reaches top of funnel on lower end.
8984-8986 kits: Pour compound to top of air vents. Replace cover onto pour
opening. Closure can be buried immediately.
7.0 Re-entry of Re-enterable Compound Splice
7.1 Remove rubber tape strips from closure ends.
7.2 Grip or pry out closure end and pull closure off encapsulated splice.
7.3 Remove spacer web from splice and discard. DO NOT REUSE SPACER
WEB. Remove as much encapsulant as possible.
7.4 After completion of repair or modification, reassemble closure according
to procedure outlined in Closure Assembly section. Closure halves may be
reused.
Note: Spacer web in roll form is available in 3"
(76 mm) and 6" (152 mm) x 20' (6 m) rolls (4430). Be sure that the
spacer web does not block the fill ports. Do not overlap spacer web.
7.5 Fill closure with new encapsulant (high gel) as outlined in Closure Filling.
The new high gel encapsulant will bond to the original encapsulant left in the
splice.
7.6 Closure can be buried immediately.
Note: 3M™ Scotchcast™ Encapsulated Closures 4407 are not Re-enterable.
Gel Time
(Hours)
3
2
1
40°F
4°C
60°F
16°C
80°F
27°C
100°F
38°C
120°F
49°C
High Gel
Gel Time vs. Temperature
Ambient Temperature
Important Notice
3M™ MS2™ splicing rigs, tools and modules are engineered to work together to achieve consistently superior
performance in the field. Modules from other manufacturers may not meet the tight quality tolerances of 3M
modules and may damage the calibration and performance of a 3M rig or tool. Therefore, the published 3M
warranty does not extend to any 3M modules spliced in rigs or tools not made by 3M. The warranty on 3M MS2
splicing rigs and Scotchlok™ splicing tools can also be violated if used on non-3M modules.
All statements, technical information, and recommendations related to 3M’s products are based on information
believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must
evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associ-
ated with such use. Any statements related to the product which are not contained in 3M’s current publications,
or any contrary statements contained on your purchase order shall have no force or effect unless expressly
agreed upon, in writing, by an authorized officer of 3M.
Warranty; Limited Remedy; Limited Liability.
This product will be free from defects in material and manufacture for a period of one (1) year from the time of
purchase. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the war-
ranty period stated above, your exclusive remedy shall be, at 3M’s option, to replace or repair the 3M product or
refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for any
indirect, special, incidental or consequential loss or damage arising from this 3M product, regardless of
the legal theory asserted.
January 2007
78-8097-8956-9-F
3
Communication Markets Division
3M Telecommunications
6801 River Place Blvd.
Austin, TX 78726-9000
800.426.8688
Fax 800.626.0329
www.3MTelecommunications.com
Please recycle. Printed in USA
© 3M 2007. All rights reserved.
78-8097-8956-9-F
1.0 General
1.1 The 3M™ Scotchcast™ Splice Kit 8980 Series has six rigid body closure sizes available.
The closure kit includes spacer webbing to keep the splice bundle away from the
closure wall and allow the encapsulating compound to flow around the splice.
1.2 3M™ High Gel Encapsulant is a two-part, re-enterable non-polyurethane encapsulating
compound.
1.3 3M™ Scotchcast™ Compound 4407 is a two-part, non-re-enterable polyurethane
encapsulating compound.
1.4 This practice describes the application of 8980 series kits with high gel or 4407
encapsulating compound (using the steps applicable to 4407 kits). See Kit Selection
Guide for individual kit capabilities.
2.0 Kit Contents
* in 4407 kits; √ in High Gel kits; X not applicable
Kit Contents 8981 8982/8983 8984 8985/8986
“closure halves, one each” * √* √* √* √
pour spouts (2) * √* √X X
strain relief bar X X √ √ (2)
bonding strap X √X X
service wire connector √ (4464) X X X
spacer tube X √ √ √
spacer web * √* √* √* √
DR tape X √ √ √
88T vinyl tape X √ √ √
B sealant tape strips X √ √ √
shield bond connectors √(4460-D)(2) √(4460-D)(2) √(4460-D)(2) √(4462-FN)(4)
compound * √* √* √* √
sheath scuff X √ √ √
cable ties (2) √ √ √ √
cover X X * √* √
#23 tape strips (3) * √* * *
fiberglass strip (2) X X * *
2.2 Accessories Required:
Splicing connectors
Additional rubber tape, if needed
"B" sealing tape, if needed
Visually inspect all components. If any component is missing or appears damaged, do
not install. Call 3M customer service at 1-800-426-8688 for a replacement product.
3.0 Cable Preparations
3.1 Prepare the cables. Cut shield flush
with the outer sheath and scuff the
inner sheath (on double sheath cables).
3M™ Scotchcast™
Kit Number
Splice Opening
8891 1.5" (38 mm)
8982 5.25" (133 mm)
8983 9.75" (248 mm)
8984 9" (228 mm)
8985 17" (431 mm)
8986 17" (431 mm)
Clean and Scuff
Inner Sheath
Core Wrapper or
Inner Sheath
8981 1/2" (13 mm)
8982-86 1" (25 mm)
873510
Clean and Scuff
Inner Sheath
3.2 Filled Cables
For best results, clean filled cables
thoroughly before encapsulating.
Note: Carefully follow health, safety and
environmental information given on cable
cleaner label or Material Safety Data Sheet.
3.3 For 8982-8986 kits, insert the shield
connector between the shield and
the inner sheath (or core wrapper on
single sheath cables). On 8982-8983
kits, make certain the shield connector
studs are aligned with “bubbles” on the
side of the mold body. (Note: Cables
show 4462-FN shield connector).
873511
3.4 For cables less than 3/4" (19 mm) in
diameter, cut a 1" (25 mm) slit in the
sheath opposite the connector location.
Then complete the procedure.
1" (25 mm) Slit
3.5 Install shield bond connector and bond
bar. Then install one nut securely onto
shield bond connector stud.
Note: Torque 4460 series shield
connector nuts to 30-35 in-lbs (3.4-
4.0 kg•m)
Torque 4462 series shield
connector nuts to 45 ± 5 in-lbs (5.2
± 0.6 kg•m).
Bond Bar
Connector Top
Connector Bottom
3.6 Cut off excess stud. Cut Off
Excess
3.7 For double sheath cables, build sealing
collars on the inner sheath. Each
sealing collar consists of one wrap of
3/4" (19 mm) wide B sealing tape cut
in half 3/8" (9 mm) and completely
overwrapped with at least two turns
of 3/4" (19 mm) highly stretched DR
tape, white side out.
3.8 For 3M™ Scotchcast™ Kits 8981-8986,
continue shield by installing the
bonding strap or strain bar(s) across
the splice opening. 873511
3.9 Build outer sheath sealing collars
just beyond the nose of the shield
bond connector—each sealing collar
consists of one 3/4" (19 mm) wrap of
B sealing tape cut in half 3/8" (9 mm)
and completely overwrapped with at
least two turns of highly stretched DR
tape, white side out. (Collars must be
covered by closure).
3.10 For multiple cables:
(a) Center a closure-half over the
splice and mark the closure end
location on the cables.
(b) Seal cables together with B sealing
tape filling all voids between the
cables. Trim closure ends to fit
build up.
4.0 Splice Conductors per company practice
Kit Selection Guide
Kit Max. Pair Count † Max. Cable O.D. Max. Splice O.D. With High Gel Re‑enterable Compound Approx. Inside Closure Dia.
8981/High Gel* 4/24 0.625" (16 mm) 1.5" (38 mm) (1) “A” Size Uni-pack 82 g (90 ml) 0.5" (13 mm)
8982/ High Gel** 18/24*** 1" (25 mm) 5.25" (133 mm) (1) “E” Size Uni-pack 266 g (292 ml) 0.9" (22mm)
8983/High Gel 50/24 1.5" (38 mm) 9.75" (248 mm) (1) “D” Size Uni-pack 600 g (659 ml) 1.25" (32 mm)
8984/High Gel 100/22 2" (51 mm) 9" (228 mm) (2) “D” Size Uni-pack 1200 g (1318 ml) 2.25" (58 mm)
8985/High Gel 400/22 2.375" (60 mm) 17" (431 mm) (5) “D” Size Uni-pack 2400 g (3295 ml) 3.5" (90 mm)
8986/High Gel 600/22 3.33" (86 mm) 17" (431 mm) (10) “D” Size Uni-pack 6000 g (6590 ml)**** 4.75" (120 mm)
*Intended for use on single cables only ***On double sheath cable 14/24 is recommended maximum
**Not intended for use with MS2™ Modules. ****Additional compound may be required depending on cable size.
Kit Max. Pair Count † Max. Cable O.D. Max. Splice O.D. With Scotchcast 4407 Encapsulating Compound Approx. Inside Closure Dia.
8981-07* 4/24 0.625" (16 mm) 1.5" (38 mm) (1) “A” Size Uni-pack 94 g (90 ml) 0.5" (13 mm)
8982-07* 18/24 1" (25 mm) 5.25" (133 mm) (1) “E” Size Uni-pack 300 g (290 ml) 0.9" (22mm)
8983-07 50/24 1.5" (38 mm) 9.75" (248 mm) (1) “D” Size Uni-pack 675 g (660 ml) 1.25" (32 mm)
8984-07 100/22 2" (51 mm) 9" (228 mm) (2) “D” Size Uni-pack 1350 g (1320 ml) 2.25" (58 mm)
8985-07 400/22 2.375" (60 mm) 17" (431 mm) (5) “D” Size Uni-pack 3375 g (2640 ml) 3.5" (90 mm)
8986-07 600/22 3.33" (86 mm) 17" (431 mm) (10) “D” Size Uni-pack 6750 g (6600 ml)** 4.75" (120 mm)
*The 8981-07 and the 8982-07 kits are intended for use on single sheath cables only. † Maximum pair count with 3M™ Scotchlok™ Connectors UY or 3M™ MS2™ Modules.
**Additional compound may be required depending on cable size. †† Inside closure diameter measured at center, minus spacer webbing.
