303® Aerospace Protectant – Premium UV Protection for Vinyl, Rubber & Plastics
Frequently Bought Together
Why Shop With Hot Tub Things?
Authentic & Genuine Products
Shop trusted inventory of original spa parts.
Competitive Pricing
Built value for genuine spa care.
Expert Customer Support
Need help finding the right item? We can assist.
Great Everyday Value
Strong fit and quality without overpaying.
Fast Free Shipping
Free shipping on orders $100+.
Satisfaction Guaranteed
Supported by our easy return process.
Key Features & Benefits
Superior UV Protection
Advanced UV-blocking technology shields surfaces from harmful sun exposure that causes fading, discoloration, and material breakdown. Regular application helps preserve color integrity and structural strength, especially on outdoor spa components.
Safe for Multiple Surfaces
Engineered for seamless compatibility with original mounting points for secure placement.Specially formulated for vinyl hot tub covers, rubber seals, plastic panels, and other spa components. The versatile formula protects without damaging sensitive materials or altering surface texture.
Clean, Non-Greasy Finish
Water-based protection dries to a smooth, non-oily finish that won’t attract dust or leave slippery residue. Surfaces maintain their natural appearance without unwanted shine buildup.
Extends the Life of Spa Components
Prevents cracking, drying, oxidation, and premature aging caused by sun and environmental exposure. Consistent use helps protect your investment and reduces costly replacement of covers and exterior parts.
Quick, Spray-On Application
Convenient spray format allows for fast, even coverage with minimal effort. Simply apply and wipe for long-lasting protection without complicated prep or tools.
Trusted Professional-Grade Brand
Widely used by NASA, the U.S. Military, and professional detailers, this proven formula delivers reliable performance in demanding environments—bringing industrial-level protection to your spa care routine.
Product Overview
Transform your hot tub and spa maintenance routine with 303 Aerospace Protectant, the industry-leading UV protection solution trusted by professionals worldwide. Originally developed for aerospace applications, this premium protectant delivers unmatched defense against sun damage, fading, and cracking on vinyl, rubber, and plastic surfaces.
Whether you're protecting your hot tub cover, spa cabinet, or vinyl accessories, 303 Aerospace Protectant creates an invisible barrier that repels dust, dirt, and stains while restoring a rich, natural finish. Unlike silicone-based products that leave greasy residues, this water-based formula dries to a non-slippery, matte finish that won't attract dust.
Frequently Asked Questions
-
Apply every 3-5 weeks for optimal UV protection. In extreme sun conditions, apply every 2-3 weeks to prevent fading and cracking.
-
Yes! It's safe for vinyl covers, plastic shells, rubber seals, and acrylic components. The water-based formula won't damage or discolor spa materials.
-
303 is water-based, non-greasy, and provides superior UV protection. Unlike silicone products, it won't attract dust or leave slippery residue.
-
16 fl oz covers one hot tub for 3-4 months. 32 fl oz is ideal for larger spas or multiple applications. 1 gallon offers best value for professionals or multiple hot tubs.
-
Yes! Regular use significantly reduces UV-caused cracking and brittleness, extending your cover's lifespan by years.
-
Absolutely! It protects vinyl, composite, and plastic cabinets from sun damage, fading, and weathering.

