Permatex Assembly Lubricant silicone brake parts lubricant — ceramic‑fortified formula for anti‑squeal, rubber/plastic safe

PERMATEX Assembly Lubricant is a ceramic‑fortified silicone brake parts lubricant engineered to cut brake squeal and protect rubber, plastic, and metal components in heavy‑duty, performance, and electric vehicles.

This silicone-based brake parts lubricant from Permatex blends a new ceramic solids formula with a silicone carrier to reduce noisy stops, resist washout, and preserve mating surfaces. It’s designed as a premium option in Permatex’s brake lubrication range, tuned for demanding applications where consistent, long-lasting performance is needed. The product works on caliper slides, pad backs, shims, and other brake hardware without degrading seals or plastics when used as directed.

How does this lubricant reduce brake noise?

The ceramic solids in the formulation damp vibrations at contact points and create a thin, stable film that lowers friction‑induced squeal. Unlike plain greases, this silicone base spreads evenly and stays in place under heat cycling and moisture exposure, so the anti‑squeal effect persists over many miles.

• Ceramic particles absorb and damp vibration between metal surfaces.
• Silicone carrier forms a consistent, non‑migratory film on mating parts.
• Resists washout from water and brake dust for long‑lasting quiet operation.

Is it safe on rubber, plastic, and painted surfaces?

Yes — the formula has been developed to be compatible with a wide range of materials commonly found in brake systems, including rubber boots and plastomers. When applied properly and sparingly, it won’t swell or damage seals and preserves original component fit and function.

• Compatible with rubber guide boots and caliper seals.
• Safe on plastics used in clips and shims when used as intended.
• Non‑corrosive to metal surfaces and retains original part fitment.

Where and how should I apply this brake parts lubricant?

Apply a thin layer to pad backs, caliper slide pins, contact points, shims, and metal‑to‑metal mounting faces during brake service or assembly. Avoid contaminating friction surfaces like pad facings or rotors; use only sparingly at the hardware interfaces to achieve proper function without reducing braking effectiveness.

• Use on slide pins, pad backing plates, shims and mating hardware.
• Do not apply to rotor or pad friction surfaces; keep product off wheel bearings.
• Clean surfaces of old lubricant and debris before applying a thin, even coat.

Will this lubricant withstand the demands of performance and EV applications?

The blend is formulated to meet higher heat and usage demands typical of heavy‑duty, high‑performance, and electric vehicle brake systems. It maintains stability through repeated temperature cycles and exposure to environmental contaminants, delivering consistent operation under harsher conditions.

• Engineered for heavy‑duty and high‑temperature brake environments.
• Resists moisture and brake dust for extended service life.
• Maintains consistent lubrication through repeated thermal cycles.

Who is this for? Technicians, DIY mechanics, fleet maintenance teams, and performance tuners who need a premium brake hardware lubricant will find this Permatex product suitable. It’s aimed at anyone servicing calipers and pads who wants to reduce brake noise, preserve components made from rubber and plastic, and ensure consistent operation across demanding driving conditions. Use it when reassembling brake hardware on passenger cars, trucks, EVs, and performance vehicles to maintain quiet, durable braking interfaces.