Can You Use Ceramic Spray on Engine Bays and Under the Hood?

Want your engine bay to look as clean as the rest of your ride? Ceramic spray isn’t just for paint—it’s a killer finishing step for under-the-hood detailing too.

In this post, we’ll break down how to use Tough As Shell Ceramic Spray on engine plastics, painted metal, and trim under the hood to keep it cleaner, longer—and looking like it just rolled off the lot.

Why Use Ceramic Spray in the Engine Bay?

Repels dust, dirt, and grime so the engine stays cleaner between washes
Protects plastic covers from UV and heat-induced fading
Adds water-repellency to under-hood surfaces so rinse water doesn’t cling or stain
Helps prevent oxidation on painted or metal parts
Leaves a clean, dry-to-the-touch finish—not greasy or oily

Where to Apply Ceramic Spray Under the Hood

✅ Safe Surfaces:

Plastic engine covers
Painted metal parts
Fuse boxes and trim panels
Hood insulation plastic and rubber trim

🚫 Avoid Spraying Directly On:

Alternators
Electrical connectors or exposed wiring
Belt systems
Hot engine components

How to Apply Ceramic Spray to the Engine Bay

Start with a clean engine bay: Use The Super Soaper diluted in a pump sprayer or foam cannon for pre-soak.
Rinse and dry completely: Use a towel or blower to remove standing water. No puddles!
Spray Tough As Shell onto a microfiber towel or applicator—never directly onto the engine.
Apply gently across plastics and painted areas, wiping even and flat
Buff dry with a second microfiber towel like the Everyday Microfiber Towel.

How Long Does It Last Under the Hood?

Since the engine bay isn’t exposed to UV or rain, ceramic spray can last up to 6+ months under the hood—especially on plastic covers and painted parts.

Testimonial

“I started using Tough As Shell on my engine plastics after cleaning, and it makes the bay pop. Not greasy, just clean and protected. Totally underrated use.” – Devon H.

Bonus Tip: Combine with a Dressing for a Pro Finish

Use All Dressed Up on rubber hoses and inner fender plastics after ceramic spray to bring back a deep OEM look without a wet finish.

Wrap-Up: Engine Protection Made Easy

Ceramic spray under the hood might not be the first thing you think of—but it’s one of the smartest. Quick to apply, long-lasting, and makes cleanup effortless. Once you do it, you’ll wonder why you waited.

✅ Protect your engine bay with Tough As Shell Ceramic Spray

✅ Pre-clean with The Super Soaper and finish with All Dressed Up for a perfect dressed look

Want a full engine detailing tutorial? Don’t miss: The Ultimate Guide to an Engine Detail