Small W/proof Silicone Grease + PTFE 3 gram for O-Ring Seals & Case Thread Etc.
Small W/proof Silicone Grease + PTFE 3.0g for. Silicone based grease with added PTFE which gives a smooth. KEEP ON TICKING ! O-Ring Seals & Case Thread Etc. waterproof coating to O ring seals and case back threads.