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3M™ Photo Film Splicing Tape 8421, Red, 12 in x 360 yd, 2.5 mil, 1 Roll/Case

3M™ Photo Film Splicing Tape 8421, Red, 12 in x 360 yd, 2.5 mil, 1 Roll/Case

SKU
#7010045197
Part #: 81784
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For industrial/occupational use only. Not for consumer sale or use.

For industrial/occupational use only. Not for consumer sale or use.


3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.


Designed for splicing of photographic film processing, 3M™ Photo Film Splicing Tape 8421 is a creamy white splicing tape featuring a thin, yet strong, polyester backing. It features an aggressive, versatile rubber adhesive that is both solvent and chemical resistant.
More Information
Specification(s)
UPC Code00051115817847
Adhesion Strength (Imperial)50.0
Adhesive TypeRubber
Backing (Carrier) MaterialPolyester
Backing MaterialPolyester
Backing Thickness (Imperial)1.4 mil
Color FamilyRed
Elongation at Break140.0 %
FacestockPolyester
Maximum Operating Temperature (Fahrenheit)300.0 Degree Fahrenheit
Minimum Operating Temperature (Fahrenheit)-60.0 Degree Fahrenheit
Overall Length (Imperial)60.0 yd
Overall Thickness (Imperial)2.5 mil
Overall Width (Imperial)12.0 in
Product ColorRed
Product FormRoll
Product Number8421
Tensile Strength (Imperial)43.0 lb/in
Total Tape Thickness without Liner (Imperial)2.5 mil
Country of OriginMEXICO
Unit of Use - Customary Net Weight12.787 LBS
Shipping Quantity1.0
Brand3M

Rubber Adhesive Offers High Tack with Excellent Chemical Resistance

The durable backing of 3M™ Photo Film Splicing Tape 8421 is ideal for splicing most film for web and photo processing. The white backing is identifiable in splicing applications. In addition, the polyester provides additional abrasion protection for sealing, edging and color-coding. The rubber adhesive sticks well to a variety of films, offers excellent chemical and solvent resistance, and features high shear strength. The tape remains flexible at -60ºF (-50ºC) and is dimensionally stable up to 300ºF (150ºC).

Recommended Applications

Splicing of most photographic film through the chemical developing process

General wide web splicing, including butt splicing and core starting

Sealing, color-coding, protecting and edging where a higher tack rubber adhesive is needed

Defect marking


  • Used for splicing of most photographic film and web processing
  • Aggressive rubber adhesive grabs quickly and adheres well to a variety of films
  • Excellent solvent and chemical resistance, especially those found in photographic processes
  • Remains flexible at -60ºF (-50ºC) and is dimensionally stable up to 300ºF (150ºC)
  • White backing is used to easily identify splices