303 Marine Aerospace Protectant – 1 Gallon (30370) | UV Protection for Boats, Vinyl, Plastic & Rubber

Protect and extend the life of your marine surfaces with 303 Marine Aerospace Protectant – 1 Gallon (30370), the industry-leading solution for UV protection and surface restoration. Specially formulated for harsh marine environments, this premium protectant helps prevent fading, cracking, chalking, and discoloration caused by prolonged sun exposure.

Originally developed for aerospace and aviation applications, 303 Protectant delivers superior UV screening (SPF 40 equivalent), making it ideal for protecting boat vinyl, gel coat, rubber, plastic, fiberglass, and marine upholstery. Its advanced formula restores a like-new appearance without leaving greasy residue, ensuring a clean, matte finish that won’t attract dust or dirt.

The 1-gallon size is perfect for boat owners, marine professionals, and detailers who need long-lasting, cost-effective protection for larger vessels or frequent maintenance routines.

Core Technology & Performance

• Superior UV Protection: Acts like "SPF 40 for your boat," providing a powerful barrier against harmful UVA and UVB rays that cause vinyl and plastic to become brittle.

• Repels Dust and Stains: The treated surface becomes anti-static, effectively repelling dust, dirt, and oil-based stains, which makes future cleanings significantly easier.

• No Oily Residue: It contains no silicone oils or petroleum distillates. Once applied, it leaves a dry-to-the-touch finish that won't attract sand or become slippery when wet.

• Color Restoration: It helps restore the original luster and color to weathered surfaces, making old vinyl and fiberglass look renewed.

Technical Specifications

• Model Number: 30370

• Size: 1 Gallon (128 fl. oz.)

• Surface Compatibility: Vinyl, Gelcoat, Fiberglass, Carbon Fiber, Rubber, Plastics, and Finished Leather.

• Finish: Matte / Satin (non-glossy)

• Safety: Non-toxic and environmentally safe.

Key Features & Benefits

• Ultimate UV protection – helps prevent fading, cracking, and sun damage

• Restores and maintains a like-new, non-greasy finish

• Safe for vinyl, plastic, rubber, fiberglass, and gel coat

• Water-based, non-toxic formula – safe for regular use

• Repels dust, dirt, and stains

• Marine-grade performance for harsh saltwater environments

• Large 1-gallon container ideal for frequent or professional use

Why Choose 303 Marine Aerospace Protectant?

Unlike traditional cleaners or conditioners, 303 Protectant bonds to surfaces to create a powerful barrier against UV rays and environmental damage. It not only enhances appearance but also extends the lifespan of your boat’s materials, reducing the need for costly replacements.

Trusted by boaters, RV owners, and automotive detailers, this product is widely recognized as one of the best marine vinyl protectants and UV blockers on the market.

Ideal Applications

• Boat seats and marine vinyl upholstery

• Dashboards, trim, and plastic surfaces

• Rubber seals and weather stripping

• Fiberglass and gel coat finishes

• Covers, fenders, and inflatables

Application Tip: For maximum longevity, apply to a clean surface and wipe completely dry. To maintain protection, reapply every 30 to 45 days of sun exposure. This 1-gallon refill is the most cost-effective way to maintain large areas like pontoon seating or full-size boat interiors.

Keep your boat looking newer for longer with 303 Marine Aerospace Protectant 30370 — the gold standard in marine UV protection and surface care.

WARNING: This product can expose you to chemicals including Ethylbenzene which is known to the State of California to cause cancer, and Ethylene Glycol which is known to the State of California to cause birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Manufacturer : 303
Manufacturer Part No : 30370