Can You Use Ceramic Spray on Engine Bays?

Wondering if ceramic spray can be used under the hood? Here’s how to safely apply Tough As Shell to your engine bay—without damaging sensitive parts.

Can You Use Ceramic Spray on Engine Bays?

Can You Use Ceramic Spray on Engine Bays?

Engine bays are some of the dirtiest parts of a vehicle—and one of the most satisfying to clean. So the question comes up: Can you use Tough As Shell in your engine bay?

The answer: Yes, but only on specific surfaces and with the right prep.

Where It’s Safe to Use Tough As Shell

  • ✅ Plastic engine covers
  • ✅ Painted or clear-coated metal panels
  • ✅ Plastic fuse boxes or battery covers

Do NOT apply on:

  • ❌ Electrical connectors
  • ❌ Belts, pulleys, or moving parts
  • ❌ High-temp exhaust components or turbo housings

How to Apply Tough As Shell to the Engine Bay

  1. Clean the area first with The Super Soaper
  2. Rinse lightly or wipe clean if needed
  3. Dry with a towel or blower
  4. Spray Tough As Shell on a towel—not directly onto parts
  5. Wipe onto safe surfaces like engine covers, strut towers, or fender wells
  6. Buff any excess to prevent streaking or pooling

Pro Tip: Finish With All Dressed Up

For plastics and hoses, apply All Dressed Up (diluted 4:1) to restore OEM looks without greasy shine (Buy on Amazon).

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Conclusion

Tough As Shell can absolutely be used to protect parts of your engine bay—just apply with care. Use it on painted or plastic areas and avoid sensitive electronics and heat zones for a clean, protected finish under the hood.

Protect your engine bay with Jimbo’s Detailing or shop Tough As Shell on Amazon.