Heat-rated cable · Georgia
We buy silicone, fibreglass and MG cable in Georgia
Silicone lead wire, fibreglass braided cable, MG motor lead and appliance wire from ovens, dryers, kilns and plant shutdowns. Reviewed on temperature rating, conductor plating and how much heat the insulation has already taken.
- Silicone and fibreglass
- 200°C and 250°C
- MG motor lead
01Overview
What this page covers
High-temperature cable exists because PVC and polyethylene fail where the ambient is above the boiling point of water. Silicone rubber holds its flexibility to roughly 200°C, fibreglass braid over a silicone or mica core to 250°C, and mica-taped constructions survive a fire test that would destroy both.
In Georgia it comes out of textile finishing and dyeing, food processing with ovens and fryers, foundries and heat-treat operations, and any plant with a boiler house. Motor changeouts leave MG lead cable; oven rebuilds leave silicone lead wire; a plant closing leaves a storehouse shelf of both.
The material is expensive when new and awkward to identify once the packaging is gone, because the jacket often carries no print — a braided cable has nowhere to put one. That makes the reel tag, the purchase record and a close look at the conductor the working documents.
02Specification
What identifies a high-temperature lot
- Types
- SRML and SRGR, MG motor lead, TGGT, mica-taped and AWM styles
- Ratings
- 150°C, 200°C and 250°C; fire-rated constructions higher
- Voltage
- 300 V and 600 V classes
- Conductor
- Nickel-plated or tinned copper, stranded for flex
- Sizes
- 18 AWG through 500 kcmil; 14 to 2 AWG most common
- Insulation
- Silicone rubber, fibreglass braid, mica tape, glass-reinforced
- Reels
- 250 ft to 1,000 ft reels; short coils on appliance wire
- Condition
- New surplus, part reel, removed from an oven or motor, heat aged
Braided cable cannot carry a surface print, so the tag and the purchase record do the identifying. Photograph the braid, the conductor at a cut end, and any label on the reel.
03Heat-rated cable we buy
Heat-rated cable we buy
Silicone lead wire
Flexible nickel or tinned copper with a silicone rubber insulation, used for oven, fryer and heater leads. Stays flexible where PVC would harden, but absorbs oil and contamination readily.
Fibreglass braided cable
A braided glass outer over silicone or mica, rated to 250°C and mechanically tough. Reviewed on braid integrity: a frayed braid exposes the insulation underneath and shortens the usable length.
MG motor lead cable
Heavy-duty lead cable from motor and generator connections, in the larger sizes. Usually removed during a motor changeout and reviewed on size, footage and the state of the insulation at the ends.
Mica-taped and fire-rated cable
Mica tape under a braid or sheath, built to keep a circuit alive through a fire. Specialised material with a narrow use, and reviewed on construction rather than on appearance.
04Evaluation
How a heat-rated lot is reviewed
The rating and the construction come first, because they cannot be inferred from looks. A silicone cable and a PVC cable can share a colour and a size. The tag, the purchase record or the marking on the insulation decides which is which, and a lot without any of them is reviewed as unknown.
Then heat history. Silicone that has run at its limit goes chalky and loses elasticity; braid that has been cooked goes brittle and sheds glass fibres when handled. Cable removed from a working oven is a different asset from cable that never left the storehouse, and the difference shows at the first bend.
Then footage and ends. These cables are often bought in short lengths for a specific rebuild, so part reels are the norm. Look at the cut ends: bright plated copper is sound, while blackened or green-stained strands mean moisture has been inside the insulation.
Fibreglass braid sheds glass fibres when handled and the dust irritates skin and lungs. Cable is handled with gloves and sleeved arms, and never shaken out to gauge its length.
05Seller terms
Before you sell: how it works
Four things a seller should be able to pin down before a truck is booked.
Verification
Footage is checked against the reel tag, the sequential marks on the jacket, the wrap count against the barrel, or a published weight per 1,000 ft — whichever the reel actually supports.
Payment
Payment method and timing are agreed in writing for the specific lot before anything is loaded or moved. No verbal number is treated as an agreement.
Paperwork
A bill of sale for the lot, and for utility material the owning utility’s release reference. Neither is optional and neither is created after the fact.
Freight
Collection is arranged as part of the terms. Say what can lift the reels and whether a 53-foot trailer can reach them, and the pickup is planned around that.
Sending a reel list and photographs costs nothing. A review is not a purchase, and nothing is bought, moved or scheduled until written lot terms are agreed for that material. Request a pickup when the lot is ready.
07Questions
High-temperature cable questions
How can I tell silicone cable from PVC?
Silicone feels softer and slightly tacky, returns to shape after a pinch, and usually carries a surface marking. PVC is harder and stays deformed when bent sharply.
Do you buy cable removed from ovens and dryers?
Yes, with the service history stated. Heat-aged cable is reviewed as recovery material, and the ends are inspected before any footage is accepted.
What does MG stand for?
Motor lead, sometimes written MG or MTW-specialty depending on the maker. It is the heavy flexible lead used between a motor and its supply, rated for the heat inside a motor housing.
Is braided cable usable without a tag?
It can be reviewed on construction: braid over silicone, conductor plating and stranding all narrow it down. Rating and footage remain estimates until the tag or a record turns up.
Send the tag, the braid and a cut end
Temperature rating, size, conductor plating and remaining footage. Where the tag is gone, the purchase record and a close photograph of the cut end carry the review.