Not sure if it is 100% the same or of the "cleaner" claim (not sure what that implies) but here is the ACE Hardware info on both. Sounds like I would use the Dielectric for coax use. IMHO.
"AGS" BULB GREASE
# Prevents corrosion
# Moisture proofs
# Assures easy bulb removal
# Seals and protects all electrical connections
"CRC" BULB & CONNECTOR DI- ELECTRIC GREASE (aka DIELECTRIC)
# Protection in extreme conditions
# Repels moisture, rust, road salt, dirt and oils
# Lubricates and insulates electrical contacts, O-rings plastic and rubber
# For indoor/outdoor bulbs, head & taillights, battery terminals
# Waterproof, heat resistant