303 Marine Aerospace Protectant – UV Protection – Repels Dust, Dirt, & Staining – Smooth Matte Finish – Restores Like-New Appearance – 32 Fl. Oz. (30306-6PK)

This stuff is great. We use it on our resin Adirondack chairs as well as our hot tub cover. It cleans it up nicely and lasts a few weeks to a month, nice and shiny. It helps protect from the sun. We have been using it for years now. Easy to use and not really an odor to it. I think it’s a good value for keeping our furniture looking nice. We have also used it on our plastic shutters up north and it shines them right up. They recommend using it every 3 weeks I believe

303 Protectant is the best treatment for gaskets, tires and untreated matt black plastics when detailing cars and trucks. It doesn’t turn the tires brown after UV exposure, keeps the gaskets soft and pliable plus enriches the look of the matt black, unpainted molding/trim. Also it can be used sparingly. A 32 oz spray bottle goes a long way when used on a pad or small soft microfiber towel. I think it’s a great product!

I use this stuff on vinyl, rubber, and plastics — especially on boat and RV surfaces. Restores color and protects from sun damage. Quality product I’ll keep using.

Used many products. This one seems to work well. Keep you posted…Follow the instructions

“Pontoon Seat Savior – This Stuff Works!” I’ve tried a lot of products over the years to keep my boat looking sharp, and nothing has impressed me like the 303 Marine UV Protectant. My pontoon seats were filthy — black scuffs from the cover, dull vinyl, and spots I thought were permanent. One spray and wipe later, I was shocked. The seats looked brand new, like they just came off the showroom floor. ✨ What I love most: Restores instantly — scuffs, grime, and dullness wiped away with zero effort. UV protection — living proof that it keeps vinyl from cracking, fading, or drying out under the sun. Non-greasy finish — no slick residue, just a clean, like-new surface. Multi-use — I’ve since used it on plastic trim and other surfaces. Same magic results. 💡 Pro Tip: Spray, let it sit for a few seconds, then wipe with a clean microfiber cloth. The before-and-after difference is jaw-dropping (see my photos!). If you’ve got a boat, jet ski, or any outdoor gear exposed to sun and weather, this product is a must. For me, it turned a “maybe we need new seats” moment into “wow, our pontoon looks like new again.” Highly recommend.

If you don't know about Formula 303 SEALANT/Shine you should. Conditions plastic & rubber much better than any other available product. With use when new, inside & out & regular every 3 months re-apolication, 3x the miles on your tires is normal. I've seen 156k miles tires treated with 303 & they look but& have the look, grip & tread as newly mounted tires but look far better due to 303 conditioning. This is NOT like typical but"rubber or plastic shine" type auto products. It SEALS & treats the raw open rubber on belts, hoses & tires making them far stronger & harder lessening the wear immensely. I use it on anything plastic or rubber on my vehicles & reapply every 3 months. Unlike other products (Armor all etc.) It does NOT stain glass or plastic & won't make sun baked surfaces crack (dashboards etc.) if only used 1x. I reapply it inside & outside my vehicles to deepen the color of rubber & plastic. May be used on dyed or painted plastic bumpers or boat painted fiberglass without damaging the paint or dye. Great for hard to reach seals & any rubber that sees wear on vehicles. I soak my belts & hoses & tie rod or ball joints for instance overnight or for 20 minutes pre i installation & it reduces wear. Great in CV boots as well & prevents tearing due to age without adding a shiny,greasy feeling to the item. Used it 1x on a dashboard now with 170k+ miles on it. No cracks now & looks better than new. Hasn't stained any fabric, paint or metal unlike other rubber treatment products. Save serious $ & use on your tires & get 109k+ miles from them even if you use this on only the outside (let it soak in overnight on 1st application imho & for 6-8 hours every 3-4 months after just by spraying them down with 303. Also works great as a leather restirer & sealant). The Gallon is a "must have" for me & easily the cheapest buy. 303 is definitely much better than any other treatment & truly aerospace & aviation designed to protect $100k aviation cockpit dashboards from the sun. Nothing else comes close. I've been using it for over 25 years without a single disappoinment & find new uses all the time as it is a sealant/protectant + it + standard household spray paint may be used to recondition worn dyed color leather seats easily & cheaply with no paint ever coming off on your clothes after using 303 sealant. It's simply the best leather, rubber,fiberglass & plastic conditioner & sealant made.

Used it to clean the cymbals on my Alesis Strike Pro SE. refer to the pictures for more details, it worked FLAWLESSLY! Beware, these will stain your mesh heads (on electronic drums) so make sure to take the cymbals off BEFORE spraying. The shine on these is impressive, I’ll update this review if it doesn’t last long.

If you have a bike with plastic fairing and you don't want the plastic to look faded and old, use this protectant. Its just an amazing way to make the plastic shine and to keep it dirt resistant. Every time I wash my bike, the first thing I do it after it dries is to apply this. Very happy with the protectant.

Just like what they have described

In my case it didnt work at all. Sprayed it on the travel bag and no results whatsoever. I recommend finding another solution if you have an extreme color fades like in my case

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Best Marine protectant