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Approved Vendor
Fiberglass Weld-Backing Tape
Manufacturer part: 3355N12
Stick this flexible tape to the back of welding seams to contain spatter and prevent oxygen, water vapor, and other gases from weakening the weld. Also known as back purge tape, it’s used for welding flat sheets, large tanks, and other applications where filling the space behind the seam with purge gas is difficult or expensive. Form the fiberglass spine into a small ridge over the weld joint, then press the adhesive foil down on each side. Compatible with MIG, TIG, and stick welding.For 200 amp Maximum Current—Apply tape for 200 amp maximum current to thin welds on aluminum, cast iron, nickel and copper alloys, and steel.
- Availability
- In stock
- Lead time
- Contact supplier
- Sold by
- Approved Vendor
Technical data
Specifications
Normalized product attributes for faster comparison and sourcing.
- ECCN
- EAR99
- Form
- Roll
- Color
- Silver
- Width
- 4"
- Length
- 82 ft.
- Minimum
- -40° F
- Material
- Aluminum
- Maximum.
- 450° F
- Spool ID
- 3/4,"
- Tape Type
- Weld Backing
- Thickness
- 0.18"
- Liner Type
- Paper
- Adhesive Type
- Acrylic
- Roll Diameter
- 10 ,5/8,"
- Spool Material
- Cardboard
- RoHS Compliance
- RoHS 3 (2015/863/EU) Compliant
- Welding Process
- MIG, TIG, Stick
- DFARS Compliance
- Specialty Metals COTS-Exempt
- REACH Compliance
- REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant
- USMCA Qualifying
- No
- Adhesive Location
- One Side
- Country of Origin
- United States
- Schedule B Number
- 701972.0000
- Tape Construction
- Fabric, Foil
- For Maximum Current
- 200 amp
Supplier coverage
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Review pricing, availability, and fulfillment details from verified distributors.
| Supplier | Supplier SKU | Price | Stock | Lead time | Type |
|---|---|---|---|---|---|
| Approved Vendor | 3355N12 | $211.50 USD | Contact supplier | Contact supplier | Authorized · US distributor |
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