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Weight: 1.2 lb
Techspan's joint compound for compression lugs and splices: a non-melting, non-petroleum-based compound with suspended zinc particles, supplied in an 8 oz. squeeze bottle. Techspan recommends it for aluminum-to-aluminum, aluminum-to-copper, conduit thread and bolted applications, and states it has little or no effect on rubber or other insulating materials.
Aluminum grows an oxide film the moment it meets air, and that film is an insulator. A compound with suspended zinc particles is designed to break through it: the hard particles score the oxide as the crimp or the bolt closes, and the carrier then keeps air away from the freshly exposed metal so the film cannot re-form inside the joint. That is why it goes on before the connection is made and not after.
Non-petroleum matters for a second reason. Petroleum-based greases attack some rubber and elastomeric insulations over time. Techspan specifically states this compound has little or no effect on rubber or other insulating materials, which is what lets you use it right at a termination without worrying about what the excess is doing to the jacket.
| Techspan part number | 1/2PTNO11C |
| Type | Joint compound with suspended zinc particles |
| Composition | Non-melting, non-petroleum-based |
| Recommended for | Aluminum-to-aluminum, aluminum-to-copper, conduit threads, bolted applications |
| Use with | Compression lugs and splices |
| Effect on insulation | Little or no effect on rubber or other insulating materials |
| Unit packaging | 8 oz. squeeze bottle |
| Carton quantity | 12 |
| Minimum order quantity | 12 pieces, stated by Techspan |
| Product family | Lugs and Grounding > Compression Lugs |
| Manufacturer | Techspan Industries Inc. |
Pro tip from the counter
Compound goes on the conductor while the strands are still loose, then the lug goes on — you are scoring the oxide film and sealing the joint in one movement. Brushing it over a finished crimp does nothing except make the next person's hands dirty. And wipe the barrel down before you tape: a zinc-loaded compound is conductive, and a smear of it bridging tight phase spacing in a small enclosure is a fault waiting for a damp morning.
Best for: electricians terminating aluminum conductors into compression lugs and splices, and anyone making bolted aluminum-to-copper transitions.
Can I use this on aluminum-to-copper connections?
Yes. Techspan recommends it for aluminum-to-aluminum, aluminum-to-copper, conduit threads and bolted applications, which covers most transition terminations.
Will it damage the cable insulation?
Techspan states it has little or no effect on rubber or other insulating materials, because the compound is non-melting and not petroleum-based.
How is it packaged and is there a minimum order?
It ships in an 8 ounce squeeze bottle, and Techspan states a carton quantity of twelve with a minimum order of twelve pieces on this part number.
Do I need compound on a copper-to-copper crimp?
Techspan lists this compound for aluminum and bolted work. Copper does not form the same insulating oxide film, so most crews keep it for aluminum terminations.
| Feature |
JOINT COMPOUND
$32.74
Current
|
|---|---|
| Brand | Techspan |
| Type | Lugs |
| Availability | In stock |
| Rating | No reviews |
Our counter is at 8520 Jane St, Unit 5, Vaughan, ON L4K 5A9, open Monday to Friday, 8am to 4pm. Order online and collect, or bring a material list and we will price it at the counter. Contractors and DIY customers are both welcome.
