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Glass cloth tape provides heat stabilized insulation for applications where resistance to high temperature and high mechanical strength are required, such as motor leads, hot spots, switches and controls.
Manufacturer Resources
See Spec Sheet
Product Specs
- Product Type:
- Glass Cloth Tape
- Tape Width:
- 1/2" / 3/4"
- Adhesion to Steel:
- 45 oz/in
- Flame Retardant:
- No
- Made in the USA:
- Yes
- Max Temperature:
- 130°F
- Rated for Direct Burial:
- No
- Tensile Strength:
- 170 lbs
- Application:
- Insulation and bundling in high-heat environments
- Color Options:
- White
- Lead-Free:
- No
- Max Operating Voltage:
- 3300 V
- Product Group:
- Electrical
- Product Subgroup:
- Tape
F4P F4P GCT050 – Frequently Asked Questions
1) Will F4P glass cloth tape hold up on motor leads that run hot?
F4P glass cloth electrical tape is heat stabilized for exactly that kind of work, motor leads, hot spots, switches and controls, with a maximum operating temperature of 130F. Above that stated ceiling it is out of spec, so if the lead surface runs hotter than 130F under load you want a higher temperature insulating system instead.
2) Can glass cloth tape be used as primary insulation on a 480V or 2400V circuit?
F4P glass cloth tape carries a maximum operating voltage of 3300 V, so it covers 480V and 2400V work within that limit. Note it is not flame retardant, which rules it out anywhere your spec calls for a self-extinguishing tape.
3) Should I use glass cloth tape or regular vinyl electrical tape?
Vinyl is the general purpose choice for cold to moderate temperature splices and jacketing. Glass cloth is what you reach for when heat and mechanical strength are the problem, motor leads, hot spots, switches and controls, where a vinyl tape would soften and unwind. The F4P glass cloth runs 170 lbs tensile strength and holds to 130F. It is not flame retardant, so it is not a substitute for a vinyl tape you chose for that property.
4) Can I use glass cloth tape on an underground or direct burial run?
No. The F4P glass cloth tape is not rated for direct burial, so keep it out of buried splices and any wet, in-ground application. Use a tape or splice kit specifically rated for direct burial there.
5) Is this glass cloth tape made in the USA for a Buy American job?
Yes, the F4P glass cloth electrical tape is made in the USA, which is the answer most agencies and institutional buyers need on the submittal. It is not a lead-free rated product, so if your specification also calls out lead-free materials, this one does not meet it.
6) What color does F4P glass cloth electrical tape come in, and can I use it for phase marking?
White only. Glass cloth tape is a single color offering here, so it is not a phase identification tape. Use it for the high heat insulation and bundling job and mark phases with a colored vinyl marking tape.
How fast can I get the F4P F4P GCT050 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 F4P F4P GCT050 come with a warranty?
Absolutely. The F4P F4P GCT050 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 F4P F4P GCT050?
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