Loctite Marine Grade Anti-Seize Compound 1 Each — Water‑Resistant, Corrosion‑Inhibiting Lubricant

Loctite 34395 Marine Grade Anti-Seize Compound is a water-resistant lubricant and corrosion inhibitor formulated to protect metal assemblies exposed to fresh or salt water.

This marine-grade anti-seize by Loctite helps reduce galling and seizing on threaded and mated metal parts that face constant humidity, spray, or direct water contact. The compound combines excellent lubricity with resistance to water wash-out and spray so fasteners, fittings, and assemblies continue to turn freely and resist galvanic corrosion over time.

How does this product protect fasteners in marine environments?

The formulation creates a barrier between dissimilar metals to slow electrochemical corrosion and keeps threads lubricated to prevent galling under load. It performs well where parts are repeatedly exposed to spray or immersion.

• Prevents metal-to-metal cold welding and thread seizing
• Resists wash-out from freshwater and saltwater exposure
• Maintains lubrication in high humidity and wet conditions

Where should I apply Loctite marine anti-seize on my boat or equipment?

Use it on bolt threads, studs, swivel fittings, prop shafts, sacrificial anodes fasteners, and anywhere dissimilar metals contact. Apply before assembly for the best long-term protection.

• Threaded fasteners and studs, especially stainless-to-aluminum joints
• Rudder fittings, propeller hardware, and thru-hull fasteners
• Industrial equipment exposed to spray or condensate

How do I apply and maintain the anti-seize for reliable performance?

Clean the contact surfaces of grease, paint, and heavy rust before applying a light, even coating to threads and bearing surfaces. Reapply after disassembly or during scheduled maintenance if you notice corrosion or loss of lubrication.

• Surface prep: remove contaminants and loose corrosion
• Apply a thin, continuous layer to threads or mating faces
• Inspect periodically and recoat when parts are serviced

Will this product help prevent galvanic corrosion between different metals?

Yes—by electrically isolating mating surfaces and preventing direct metal contact, the anti-seize reduces the risk of galvanic action that causes accelerated corrosion between dissimilar metals.

• Forms a protective film that limits metal-to-metal contact
• Useful wherever stainless steel, bronze, aluminum, or carbon steel meet
• Complements other corrosion-control measures like coatings and sacrificial anodes

Who is this for: Loctite 34395 Marine Grade Anti-Seize is ideal for boat owners, marine technicians, maintenance crews, and anyone who services outdoor or coastal equipment exposed to moisture and salt spray. It suits professional and DIY users who need a reliable, water-resistant lubricant and anti-corrosion barrier for threaded connections, fittings, and mated metal parts.