CRC 5-56 Marine Multi-Purpose Oil 300g Aerosol

CRC 5-56 Marine is a multi-purpose lubricant that CRC designed to prevent damage from water and salt atmosphere in marine engines and boating equipment. It forms a thin film that lubricates moving parts for smooth action and protects metals from corrosion caused by humidity and salt air for extended periods.

CRC describes it as a thin penetrating oil that does not dry. It frees components bonded by dirt and scale, displaces moisture to help start wet engines, and contains no silicone. This page covers the 300g aerosol, CRC product number 6006.

Where this product is used

• Watercraft and boating equipment
• Boat trailers and trailer maintenance
• Engines and outboards
• Springs, shackles, domes and zips
• Starting wet or flooded engines, where CRC says to spray all electrics and leads liberally
• General marine use

Features

• Lubricates for smooth action and silences squeaks and squeals
• Protective film against water and salt atmosphere, with corrosion protection from humidity and salt air for extended periods
• Penetrates quickly, breaks away rust and corrosion and frees components bonded by dirt and scale
• Displaces moisture to help start wet engines
• Contains no silicone
• Cleans grease and tar off painted surfaces
• CRC states it is safe for all metals and alloys and on most painted surfaces, coatings, plastics and rubbers

Key specifications

Selecting the right option

For general workshop and non-marine lubrication, CRC also makes CRC 5-56 Multi-Purpose Lubricant in aerosol, trigger and bulk packs. For fishing reels and tackle see CRC Aerosol Tackle Guard 100g.

Using it

Do not spray while equipment is energised.

Hold the can about 30 cm from the surface and spray liberally. For greater penetration let it soak in before working on the part, then wipe away excess with a clean cloth.

For flooded engines CRC says to spray all electrics and leads liberally.

When cleaning painted surfaces, test a small area first for colour fastness.

Storage and handling

Protect from sunlight and do not expose to temperatures above 50 °C. Do not pierce or burn the can, even after use.

Limits and safety

SDS classification: signal word Warning. Flammable aerosol (H223). Pressurised container: may burst if heated (H229). Repeated exposure may cause skin dryness or cracking (AUH066). Transport class: UN 1950, Aerosols, Class 2.1. Keep away from heat and ignition sources. Incompatible with oxidising agents (for example hypochlorites), acids (for example nitric acid) and alkalis (for example sodium hydroxide). Do not spray while equipment is energised. Read the safety data sheet before use.

Frequently asked questions

What is CRC 5-56 Marine used for?

CRC lists watercraft and boating equipment, boat trailers, engines and outboards, springs, shackles, domes and zips, and general marine use. It forms a thin film that lubricates and protects metals from corrosion caused by humidity and salt air.

Does CRC 5-56 Marine contain silicone?

No. The CRC technical data sheet states it contains no silicone.

What is the flash point of CRC 5-56 Marine?

CRC gives 73 °C in its safety data sheet and technical data sheet, with no test method stated. The SDS still classes the can as a flammable aerosol (H223), so keep it away from heat and ignition sources.

Is CRC 5-56 Marine a dangerous good?

Yes for transport. The CRC safety data sheet lists UN 1950, Aerosols, Class 2.1, with no packing group allocated.

Can I use CRC 5-56 Marine on energised equipment?

No. The CRC technical data sheet says not to spray while equipment is energised.

How do I apply CRC 5-56 Marine?

Hold the can about 30 cm from the surface and spray liberally. Let it soak in for greater penetration, then wipe away excess with a clean cloth.

Related products

See also: CRC 5-56 Multi-Purpose Lubricant, CRC Aerosol Tackle Guard 100g, CRC Aerosol Long Life Anti Rust Lubricant 300g, CRC Aerosol Wire Rope & Cable Lubricant 285g.