You may also like
3M Scotch Vinyl Mastic Tape 2210 4 in x 10 ft Black Self-Fusing Electrical Insulation Roll
Model: 3M-2210-4X10FT
3M Scotch Vinyl Mastic Tape 2210 4 in x 10 ft Black Self-Fusing Electrical Insulation RollProfessional Self-Fusing Electrical Insulation & Moisture Sealing3M Scotch Vinyl Mastic Tape 2210 delivers...
3M
$159.83
$152.26
3M Scotch 70-1X30FT Self-Fusing Silicone Rubber Electrical Tape, 1 in x 30 ft, Sky Blue/Gray
The 3M Scotch 70-1X30FT Self-Fusing Silicone Rubber Electrical Tape is a premium self-fusing tape built for electricians and industrial professionals who need dependable, adhesive-free insulation. Each roll measures 1 in x 30 ft and is finished in a distinctive Sky Blue/Gray color that makes it easy to identify on a crowded workbench or job site. Constructed from silicone rubber, the tape fuses to itself as it is stretched and wrapped, forming a continuous, resilient seal that will not leave sticky adhesive residue behind on wires, connectors, or cable bundles. Sold as a Scotch 70 series product from 3M, this tape ships one roll per carton and is packed 24 rolls to a case, making it a convenient option for stocking service trucks, maintenance shops, and production lines. This tape is commonly stocked by electrical contractors and industrial maintenance teams who value a self-fusing wrap that performs reliably across a range of splicing and repair tasks.
Key Features
- Tape Dimensions: Each roll measures 1 in x 30 ft, providing ample coverage for splices, repairs, and harnessing tasks.
- Self-Fusing Silicone Rubber: Fuses to itself under tension to form a resilient, moisture-sealing wrap with no adhesive residue.
- No Adhesive Residue: Because the tape fuses to itself rather than relying on adhesive, it can be removed without leaving sticky residue on cables or components.
- Self-Bonding Application: As the tape is stretched during wrapping, it permanently fuses to itself layer over layer, eliminating the need for a separate adhesive backing.
- Conformable Wrap: The silicone rubber construction conforms to irregular shapes such as splices, connectors, and cable bundles for a tight, continuous seal.
- Sky Blue/Gray Coloring: Distinct color makes the tape easy to identify among other electrical products on a truck or in a shop.
- Scotch 70 Series: Part of 3M's recognized Scotch-branded lineup of self-fusing electrical tapes.
- Bulk-Friendly Packaging: Supplied 1 roll per carton, with 24 rolls per case, supporting high-volume electrical and industrial projects.
Technical Specifications
- Tape Width: 1 in
- Roll Length: 30 ft
- Color: Sky Blue/Gray
- Packaging: 1 roll per carton, 24 rolls per case
Typical Applications
- Electrical Splice Insulation
- Cable and Wire Harnessing
- Moisture-Sealing Wraps for Outdoor and Underground Connections
- Repair and Maintenance of Electrical Assemblies
- Bundling and Protecting Wire Runs
- General Industrial and Commercial Wiring Projects
Why 3M?
3M's Scotch-branded self-fusing silicone rubber tape is engineered to deliver dependable, adhesive-free insulation for demanding electrical and industrial work. With consistent 1 in x 30 ft rolls, distinctive Sky Blue/Gray coloring for quick identification, and case packaging of 24 rolls, this tape is designed to keep crews stocked and ready for splicing, repair, and maintenance tasks. Choosing 3M means choosing a globally recognized manufacturer known for producing electrical tapes trusted by professionals in the field.
Manufacturer Resources
Spec Sheet
Product Specs
- list_batch:
- SPB-20260922
- Product Type:
- Electrical Tape
- Series:
- Scotch 70
- Department:
- Electrical
- Product Subgroup:
- Electrical Tape
- Product Material:
- Silicone Rubber
- Product Color:
- Sky Blue/Gray
- Product Group:
- Cable Management & Identification
- Shelf Life:
- 5 Year
- Backing Material:
- Silicone
- Tape Grade:
- Premium
3M 70-1X30FT – Frequently Asked Questions
1) Does 3M Scotch 70 silicone tape have adhesive on it, and will it stick to the cable?
No adhesive at all. Scotch 70 is a self-fusing silicone rubber tape that bonds to itself when you stretch it during wrapping, layer over layer. It does not bond to the wire, connector, or jacket, so it pulls off later without leaving sticky residue on the components. That is the main reason crews reach for it over a vinyl tape on gear they expect to open again.
2) Can I use Scotch 70 silicone tape on an outdoor or direct-buried connection?
Yes, moisture sealing is one of its listed uses, including outdoor and underground connections. Stretched and wrapped, the silicone rubber fuses into a continuous seal and conforms around irregular shapes like splices, connectors and cable bundles, so there is no spiral gap for water to track through.
3) How much tape is on a roll of 3M 70-1X30FT, and how is it packed for stocking a service truck?
Each roll is 1 inch wide by 30 feet long, supplied one roll per carton and 24 rolls to a case. That case quantity is what most electrical and MRO stockrooms buy on, since a single splice wrap uses only a few feet.
4) Should I use self-fusing silicone tape or regular vinyl electrical tape on a splice?
They do different jobs. A vinyl tape relies on a pressure-sensitive adhesive and is the usual choice for general insulating, color coding and harness jacketing. Scotch 70 carries no adhesive, fuses to itself under tension, and is the one you want where you need a conformable moisture seal around a splice or connector and clean removal with no residue on the part. Many electricians use both: silicone for the seal, vinyl as an outer wrap for appearance and abrasion.
5) What is the exact 3M part number to order for the 1 inch by 30 foot Scotch 70 silicone tape?
The manufacturer part number is 70-1X30FT, a Scotch 70 series premium-grade self-fusing silicone rubber tape with a silicone backing. Distributors ordering against a spec should quote that MPN, since the 70 series is sold in several width and length combinations.
6) Do I have to stretch self-fusing silicone tape when I wrap it, or can I just lay it on?
It has to be stretched. Scotch 70 fuses only under tension, so you pull it as you wrap and overlap each turn onto the previous one. Laid on slack it will not bond layer to layer and you get no continuous seal. Half-lapping over the full length of the splice is the normal practice.
7) How long can Scotch 70 tape sit on the shelf before it goes bad?
Shelf life on Scotch 70 is 5 years. Worth noting if you are buying the 24-roll case for a stockroom rather than a single job, rotate stock so the older cartons go out first.
8) Why is this 3M tape sky blue/gray instead of black?
The sky blue/gray color is how Scotch 70 is identified. It reads instantly as the self-fusing silicone roll on a truck or bench where everything else is black vinyl, which matters when a tech is grabbing tape one-handed in a panel. It is not a phase or voltage color code.
How fast can I get the 3M 70-1X30FT delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the 3M 70-1X30FT come with a warranty?
Absolutely. The 3M 70-1X30FT is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the 3M 70-1X30FT?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the 3M 70-1X30FT from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.