JLM Cavity Wax

400ml / J04800
  • Advanced protection against perforation corrosion
  • Water repellent formulation
  • Excellent coverage
  • Low viscosity with excellent penetration and creep
  • Non-aggressive towards plastic, trim and paint
JLM Cavity Wax

JLM Lubricants' cavity wax is a modern, powerful but convenient corrosion preventative, designed primarily for hidden vehicle bodywork box-sections. Its 500ML capacity ensures optimum value for all users, including garages, vehicle restorers, body shops and DIY enthusiasts.

Product information

JLM's cavity wax offers insider protection against corrosion, which starts from within a panel but becomes obvious only when it has worked its way through to the other side. By then, the damage is likely to be extensive.  

JLM Lubricants' cavity wax is ideal to safeguard inner sill cavities, separate chassis box sections and even behind outer body panel skins. Its handy aerosol can format avoids the need for dedicated and often messy compressed-air powered applicators, making it perfect for occasional use, or when a fast and convenient localised application is preferred. The brown wax is thin enough to creep into tight seams, while displacing water as it probes deeper into the panel. Once settled, it forms a tough, flexible skin that protects the steel against future water intrusion, including moisture contaminated by highly corrosive road salt. It can be used to either top-up the manufacturer's factory rustproofing, or provide superior anti-corrosion protection for a coveted vehicle.

Formulated to meet the Finnish SFS 4086 corrosion protection standard, JLM Lubricants' cavity wax even provides optimum protection to vehicles enduring the harshest weather conditions of Northern Scandinavia. Yet, it does not harm paint, or plastic/rubber trim.


JLM Lubricants chose the generously filled aerosol format for ease of use. As it is intended to be applied at room temperature, pre-warming is unnecessary. Shake the can well for at least two minutes before application. If the aerosol was used earlier, ensure that the nozzle is clear from previously-applied wax. Ensure that the treated surfaces are clean and dry for maximum protection. Any pre-existing rust should be treated with a suitable converter and any welding work must be completed before application.

Despite the nozzle's wide and even spray pattern, an effective mist is also created for optimum coverage. Therefore, JLM Lubricants recommends that the user wears gloves, a breathing mask and suitable eye protection and works in a well-ventilated area. In difficult to reach parts, the supplied extension probe (60cm) provides superior access. Do not apply cavity wax to parts that can become very hot, such as the exhaust, engine, or the braking system. Once finished, allow any mist to dissipate. Surplus wax residues can be cleaned afterwards with a suitable aromatic solvent, such as white spirit.

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