3M Audio and Video Accessories
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No. 41A General Purpose Splicing TapeSplicing Tapes
No. 41A General Purpose Splicing Tape
Designed for manual splicing of
magnetic tapes.
Designed for fast editing.
Fast adhesion, repositionable.
Product Composition
Color White
Base film Acetate
Adhesive High performance rubber
Product Specifications
Base film caliper 1.50 mil (38,1 µm) nominal
Adhesive caliper 0.22 mil ( 5,6 µm) nominal
Overall caliper 1.72 mil (43,7 µm) nominal
Plate adhesion 15.0 oz./in. (16,7 g/mm) minimum
Creep properties 8.0 mils @ 75°F maximum
(5 psi shear load/4 hours) (203,2 µM @ 24°C maximum)
Shelf life in roll form 1 year
Application Performance
Manual splicing Easy cutting, fast adhesion
Environmental performance Not recommended for archival applications
Available Sizes
| Width x Length | Cores | Metric Equivalent |
| 7/32 in. x 66' | 1" I.D. plastic | 5,6mm x 20M 25,4mm l.D. plastic |
No. 620 Professional Splicing Tape
Designed for automated splicing of
magnetic tapes.
Designed for splicing leaders to magnetic tapes.
High statistical reliability for maximum performance in commercial applications.
Product Composition
Color White
Base film Polyester
Adhesive High performance rubber
Product Specifications
Base film caliper 0.92 mil (23,4,µm) nominal
Adhesive caliper 0.22 mil ( 5,6,µm) nominal
Overall caliper 1.14 mil (29,0,µm) nominal
Plate adhesion (ASTM-D-1000) 2.6 oz./in. (2,9g/mm) nominal
Creep properties 6.0 mils @ 75°F (152,41µm @ 24°C) maximum
Shelf life in roll form 1 year
Roll unwind adhesion 2.0 oz./in. (2,2 g/mm) nominal
Application Performance
Machine splicing High reliability in commercial equipment
Environmental performance Splice bonds remain intact after exposure to the following
conditions:
1. Dry heat: 120°F (49°C)
2. Cold storage: -30°F (-34°C)
3. Humid storage: 80°F/80% R.H. (27°C/80% R.H.)
Available Sizes
| Width x Length | Cores | Metric Equivalent |
| 0.130 in. x 75 ft. | 1" I.D. plastic | 3,3mm x 23M 25,4mm l.D. plastic |
| 0.130 in. x 250 ft. | 1" I.D. plastic | 3,3mm x 76M 25,4mm l.D. plastic |
| 0.22 in. x 66 ft. | 1" I.D. plastic | 5,6mm x 20M 25,4mm l.D. plastic |
No. 67 Professional General Purpose Splicing Tape
General purpose designed for manual splicing of leaders to magnetic tapes.
High statistical reliability for maximum performance in commercial applications.
Extended shelf life over other splicing tapes.
Provides strong splice bonds despite extremes of dynamic stress in bin loop transports.
Product Composition
Color White/blue tint
Base film Polyester
Adhesive High performance synthetic
Product Specifications
Base film caliper 0.92 mil (23,4µm) nominal
Adhesive caliper 0.55 mil (14,0 µm) nominal
Overall caliper 1.47 mil (37,3 µm) nominal
Plate adhesion (ASTM-D-1000) 30.0 oz./in. (33,0 g/mm) nominal
Creep properties 3.0 mils @ 75°F ( 76,2µm @ 24°C) maximum
Shelf life in roll form 1 year minimum
Application Performance
Manual splicing Splice bonds remain intact after exposure to the Environmental
performance following conditions:
1. Dry heat: 150°F (66°C)
2. Cold conditions: -30°F (-34°C)
3. Humid conditions: 80°F/80% R.H. (27°C/80% R.H.)
Available Sizes
| Width x Length | Cores | Metric Equivalent |
| 7/32" in. x 100 ft. | 1" I.D plastic | 5,6mm x 30M 25,4mm l.D. plastic |
| 1/2" in. x 100 ft. | 1" I.D plastic | 12,1 mm x 30M 25,4mm l.D. plastic |
| 3/4" in. x 100 ft. | 1" I.D plastic | 18,9mm x 30M 25,4mm l.D. plastic |
| 1" in. x 100 ft. | 1" I.D plastic | 24,5mm x 30M 25,4mm l.D. plastic |
No. 70 Professional Audio and Video High Performance Splicing Tape
Designed for the permanent splicing leaders and magnetic tapes commonly used in the recording industry.
Ease of application by either manual or machine methods. High statistical reliability in commercial splicing equipment. Strong splice bonds which can survive extremes of temperatures and humidity.
Product Composition
Color White/pink tint
Base film Polyester
Adhesive High performance synthetic
Product Specifications
Base film caliper 0.92 mil (23,4 µm) nominal
Adhesive caliper 0.20 mil ( 5,1,µm) nominal
Overall caliper 1.12 mil (28,4,µm) nominal
Plate adhesion (ASTM-D-1000) 14.0 oz./in. (15,6 g/mm) nominal
High temperature creep properties 4.0 mils @ 125°F (101,6µm @ 52°C) maximum
Shelf life in roll form 1 year minimum
Roll unwind adhesion 1 oz./in. (1,1 g/mm) nominal
Application Performance
Machine splicing High reliability in commercial equipment
Environmental performance
Splice bonds remain intact after storage under the following conditions:
1. Dry heat: 150°F (66°C)
2. Cold storage: -40°F (-40°C)
3. Humid storage: 80°F/80% R.H. (27°C/80% R.H.)
Available Size
| Width x Length | Cores | Metric Equivalent |
| 1/2" in. x 100 ft. | 1 in. I.D. plastic | 12,1mm x 30M 25,4mm I D. plastic |
| 3/4" in. x 100 ft. | 1 in. I.D. plastic | 18,9mm x 30M 25,4mm l.D. plastic |
Nos. 305 & 309 Magnetic Film and Motion Picture Film Splicing Tapes
No. 305 Splicing Tape is a 1.4 mil (35,5 ,µm) clear tape designed for editing and splicing of both magnetic film and motion picture film in the motion picture industry.
No. 309 Splicing Tape is a 2.0 mil (50,8 ,µm) white, translucent tape designed for editing and splicing of magnetic film (not motion picture film) in the motion picture industry. The tape's extra thickness adds stiffness for ease of editing.
Both 305 and 309 Splicing Tapes are easy to apply. Their instant "wet-grab" characteristics assure quick, secure splices.
Splice bonds improve with age.
Product Composition No. 305 No. 309
Color Clear White
Base film Polyester Polyester
Adhesive High performance synthetic High performance synthetic
Product Specifications No. 305 No. 309
Base film caliper 1.4 mil (35,5 µm) nominal 2.0 mil (50,8 µm) nominal
Adhesive caliper 1.4 mil (35,5 µm) nominal 1.4 mil (35,5 µm) nominal
Overall caliper 2.8 mil (71,1 µm) nominal 3.4 mil (86,3 µm) nominal
Plate adhesion 12 oz./in. (13,2 g/mm) 12 oz./in. (13,2 g/mm)
(ASTM-D-1000) minimum minimum
Creep properties No splice failure No splice failure
(5 psi/50 minutes) at 75°F (24°C) at 75°F (24°C)
Shelf life in roll form 1 year minimum stored 1 year minimum stored at 72°F (22OC)/45%
R.H. at 72°F (22°C)/45% R.H.
Roll unwind adhesion 4 oz./in. (4,4 g/mm) maximum 4 oz./in. (4,4 g/mm) maximum
Application Performance No. 305 No. 309
Editing Instant wet grab Instant wet grab
Environmental performance Splice bonds remain intact Splice bonds remain intact
after storage under the after storage under the
following conditions: following conditions:
1. Dry heat: 160°F (71 °C) 1. Dry heat: 160°F (71 °C)
2. Cold storage: -10°F (-23°C) 2. Cold storage: -10°F (-23°C)
3. Humid storage: 3. Humid storage:
150°F/80% R.H. 150°F/80% R.H.
(66°C/80% R.H.) (66°C/80% R.H.)
Available Sizes (No. 305) Splicing Tape
| Width x Length | Cores | Metric Equivalent |
| (DP) 16mm x 66 h. | 1 in. I.D. | 16 mm x 20,1m 25,4mm l.D. |
| (DP) 35mm x 66 h. | 1 in. I.D. | 35 mm x 20,1m 25,4mm l.D. |
| (K) Special order only | ||
Available Sizes (No. 309) Splicing Tape
| Width x Length | Cores | Metric Equivalent |
| (DP) 16mm x 50 ft. | 1 in. I.D | 16mm x 15,2m 25,4mm l.D. |
| (DP) 35mm x 50 ft. | 1 in. I.D. | 35mm x 15,2m 25,4mm l.D |
| (DP)16mmx265 ft. | 1 in l.D. | 16mm x 80,7m 25,4mm l.D. |
| (K) Special order only. |
No. 8175 Professional Black Splicing Tape
Designed for use on transports with photo-electric sensing.
Extended shelf life over other splicing tapes.
Product Composition
Color Black
Base film Polyester
Adhesive Synthetic acrylate
Product Specifications
Base film caliper 1.1 mils (27,91µm) maximum
Adhesive caliper 0.1 mils ( 2.5,µm) nominal
Overall caliper 1.2 mils (30,5,µm) nominal
Opacity 0.016% transmission nominal
(Macbeth Densitometer, green filter)
Plate adhesion (ASTM-D-1000) 4.0 oz./in. (4,4 gm/mm) nominal
Shear strength 12 Ibs./in. (5,4 Kgm/25,4mm) minimum
Shelf life in roll form 1 year minimum
Application Properties
Environmental performance Splice bonds remain intact after exposure
to the following conditions:
1. Dry heat: 150°F (66°C)
2. Cold storage: -10°F (-23°C)
3. Humid storage: 150°F/80% R.H. (66°C/80% R.H.)
Available Sizes
| Width x Length | Cores | Metric Equivalent |
| 7/32" in. x 100 ft. | 1 in. I.D. plastic | 5,6mm x 30M 25,4mm l.D. plastic |
| 1/2" in. x 66 ft. | 1 in. I.D. plastic | 12,1mm x 20M 25,4mm l.D. plastic |
Leader Tapes
No. 20 Paper Leader Tape
Product Composition
Color White
Material Special Calendered Paper
Product Specifications
Caliper 2.5 mils (0.0635mm) nominal
Tensile, Machine Direction 37 Ibs./in. (661 gm/mm) nominal
Elmendorf Tear, Cross Direction 39 Grams, nominal
Available Sizes
| Width x Length | Carrier | Metric Equivalent |
| 1/4" in. x t 000 ft. | Reel | 6.35mm x 305m |
| 1/2" in. x t 000 ft. | Paper Core | 12,70mm x 305m |
| 2" in. x 150 ft. | Paper Core | 50,75mm x 46m |
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No. 61W Professional Leader Tape
Specially designed anti-static properties.
Intended for use wherever a hygroscopically stable, low static leader is needed.
Easy to handle "cling free" polyester.
Write-on capability on one surface.
7.5" and 15" timing marks provided.
Available in white.
Product Composition
Color White with Black Timing Marks
Base Film Polyester
Product Specifications
Yield Strength (F5) 5.0 Ibs./1/4in. (2,27kg/6.35mm)
Resistivity 10
9 ohms/square nominalSlit Widths and Lengths .1/4" in. +.000/-.004( 6,30mm+.000/-.101x 1500 ft. (304,8m) White
1/2" in. +.0000/-.004(12,70mm+.000/-.101)x1000 ft.(304,8m) White
1" in. +/000/-.004 (25,40mm+.000/-.101) x 1000 ft. (304,8m) White
2" in. +.000/-.004(51 ,80mm+.000/-.101) x 250 h. (76,2m) White
Base Film Caliper 1.5 mil (38,1 ,µm) nominal
Color Coat Caliper 0.12 mil (3,0,µm) nominal
Overall Caliper 1.62 mil (41,1 ,µm) nominal
Hold Down Tapes
No. 8125 Diagonal Stripe Hold Down Tape
No. 8125 Hold Down Tape is a 2.0 ml polyester hold down tape which has become the industry standard for end of roll tabbing. It leaves no adhesive residue to contaminate audio, video or mag film. The distinctive black and white zebra striping make it easy to find the end of the recording tape fast.
Product Composition
Color White, with diagonal black stripes
Base Film Polyester, white
Adhesive High cohesive strength synthetic
Product Specifications
Base Film Caliper 2.0 mil nominal (50,8 µm nominal)
Adhesive Caliper 1.0 mil nominal (25,4 µm nominal)
Overall Caliper 3.0 mil nominal (76,2 µm nominal)
Plate Adhesion (ASTM-D-1000) 12 oz./inch minimum (13,4 g/mm minimum)
Roll Unwind Adhesion 15 oz./inch minimum (16,7 g/mm minimum)
Sizes Boxed 1/4 in. x 90 ft. (6,3mm x 27m)
Available Sizes
| Width and Length | Core Size (Cardboard) | Metric Equivalent |
| 1/4 in. x 90 h. | 3 in. I.D. (7.62 cm) | 6,35mm X 27,43m |
Specialties
No. 610 Professional Wiping Fabric
Designed to pick-up and hold loose debris commonly found on magnetic tape surfaces and edges.
Exclusive low tack binder system firmly holds debris after being dislodged by the fabric fibers.
Engineered for professional audio and video applications including tape duplicators.
Non-abrasive.
Over 28 years of proven performance at 3M tape manufacturing facilities worldwide.
Product Composition
Color Green
Fabric A two-fiber composition, non-woven
Binder Low tack synthetic
Product Specifications
Fabric weight 12.5 + 2.0 Ibs./ream (5,67 kg + 0,90 kg/ream)
Tensile Strength 2 Ibs./inch minimum (0,90 kg/25,4 mm minimum)
Shelf life Unlimited
Application Performance
Machine wiping High reliability on commercial equipment
Performance Exclusive low tack binder system firmly holds
debris after being dislodged by the fabric fibers.
Available Sizes
| Width x Length | Cores | Metric Equiv. | Width x Length | Cores | Metric Equiv. |
| 0.5 x 60 ft. | 1 in I.D. | 12,7mm x 18,2m 25,4 I.D. | 1.0 in. x 150 ft. (K) | 3 in. I.D. | 25,4 mm x 45,7 m 76,3 mm I.D. |
| 0.5 in x 120 ft* | 1 in I.D. | 12,7 mm x 36,5 m 25,4 mm I.D. | 1.5 in x 75 ft | 1 in I.D. | 38,1mm x 22,8 m 25,4mm I.D. |
| 1.0 in x 120 ft* | 1 in I.D. | 25,4 mm x 36,5 m 25,4mm I.D. | 2.25 in x 65 ft (K) | 1 in I.D. | 57,1 mm x 19,8m 25,4mm I.D. |
| 1.0 in x 150 ft. | 1 in I.D. | 25,4 mm x 45,7m 25,4 mm I.D. |
(K) Special order only. Widths nominal, lengths are minimum. * Plastic core, others are cardboard.
Head Cleaning Videocassettes
Designed for head cleaning when evidence of picture degradation so demands. You can depend on 3M Head Cleaning Videocassettes to safely clean video heads and optimize picture quality.
Formats Available
Mini U-Matic
VHS

Re-Label Tape can be used for video cassette spines and faces. It can also be used for audio cassettes and floppy disks. Removes easily for a new re-label. Supplied in a
plastic, hand-held dispenser.
Product Composition
Color White
Available Sizes
| Width x Length | Cores | Metric Equivalent |
| 3/4 in X 700 in | 1 in. I.D. plastic | 19,mm x 17,7M |
Empty Audio Recording Studio Dispenser Kit
The audio recording studio dispenser kit was designed to quickly cut leader, splicing and hold down tapes. The patented Butter Blade is designed to sever polyester yet safeguard fingers.
The dispenser is designed to hold tapes loaded on 5" or 7" plastic reels, 1" cores and 3" cores (up to 5'/2" in diameter).
To replenish your supply of tapes and cutter bar, see your 3M Professional Audio/Video and Specialty sales representative or contact the nearest 3M branch office. (Tape and cotton swabs not included).
Snap Cap Hanger Bar System
Efficient storage. Ready access. Easy, inexpensive installation. Full protection without additional packaging. That's what makes 3M's Snap Cap Hanger System a superb way to protect your valuable Betacam or standard U-matic broadcast videocassettes.
Each cassette snaps firmly into its own protective holder, yet is easily retrieved. The heavy-duty holder locks onto a lighter, high-strength aluminum bar. Cassette and holder can be detached as a unit for complete protection during transport.
Maximize storage with 280 videocassettes within a 4' x 8' area. Cassette spines are revealed for simple, clear, uniform labeling and fast individual access. The Snap Cap Hanger Bar System easily and inexpensively adapts to many locations and space requirements.
3M TapeCare Library Boxes
3M's TapeCare Library Box created an archival-quality container made with a double wall of tough, environmentally responsible recyclable high-density polyethylene. And its specially designed seals prevent dust from entering the case, while the locking system prevents accidental openings in transit or storage.
Features & Benefits
Replaces cardboard containers that shed debris and absorb moisture.
Unique box-seal design keeps out dust and minimizes the effects of humidity.
Designed for improved tape protection, handling and identification in tape library environments.
Double-wall construction absorbs shocks from accidental bumps and drops.
Cinching problems are virtually eliminated. The special hub support and frictional properties of the case let the reels rotate freely inside the box.
Easy to use, compact carrying handle.
Dual locking latches prevent accidental opening.
Double hinge design lets the top and bottom halves of the box lay flat when open for easy removal and replacement.
Features large areas on spine and front for label display.
Interlocking stacking buttons tie several boxes together for easy, "no-slip" stacking and carrying.
. Light and easy to handle.
Neat appearance for studio storage and organization.
Product Composition
Color Textured black
Case material High density polyethylene
Available Sizes: Audio
1/4"1/2"1" 2" widths in small and large tape length reels.
Available Sizes: Video
| Reel Diameter | Width x Height x Thickness | Hub Size |
| 9 in. | 9.9in.x 9.7in x1.7 in | 3 in. |
| 251.4 mm x 246,3mm x 43,1mm | 76,2 mm | |
| 10.5 in. | 11.4 in.x11.1 in.x1.7 in. | 3 in. |
| 289,5mm x 281,9mm x 43,1mm | 76,2mm | |
| 14 in. | 14.4 in x146 in.x1.7 in. | 3 in. |
| 355,7mm x 370,6mm x 43,1mm | 76,2mm |
Empty Reels in Boxes
3M carries a full line of empty audio and video reels (both metal and plastic) shipped in boxes.
3M Audio and Video Division 3M Center Bldg. 223-5N-01, St. Paul, MN 55144-1000
84-9811-7260-8(351)BHP ©3M 1995