






🚗 Keep your seals fresh, flexible, and flawless – because your ride deserves the best!
303 30324 Rubber Seal Protectant is a 100ml premium conditioning formula designed to protect and restore rubber seals on vehicles and boats. It prevents drying and cracking in extreme temperatures, rejuvenates color, and restores elasticity, ensuring seals perform like new. Its easy applicator makes maintenance quick and effective, ideal for professional-grade care of doors, windows, hoods, and trunks.

| ASIN | B00T44D1R2 |
| Best Sellers Rank | 120,357 in Automotive ( See Top 100 in Automotive ) 327 in Plastic & Rubber Care |
| Brand | 303 Products |
| Colour | White |
| Customer Reviews | 4.4 out of 5 stars 3,193 Reviews |
| Global Trade Identification Number | 00082043303249, 00082043303768 |
| Included Components | Great Product |
| Item Dimensions L x W | 44L x 44W millimetres |
| Item Highlight | Conditions rubber seals to help prevent cracking, fading, and drying. |
| Item Type Name | Rubber Seal Protectant |
| Item Weight | 3.4 Ounces |
| Manufacturer | 303 |
| Manufacturer Contact Information | CHICAGO, IL, 60632 US |
| Material | Rubber |
| Model Number | 30324 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 30324 |
| Product dimensions | 44L x 44W millimetres |
| Recommended Uses For Product | Conditioning and protecting rubber seals on doors, windows, hoods, trunks |
| Recommended uses for product | Conditioning and protecting rubber seals on doors, windows, hoods, trunks |
| UPC | 082043303249 082043303768 |
| Unit Count | 100.55 millilitre |
J**.
Really good get rid of scuffs makes soft
Still not sure if safe to get on paint if accidentally get some on it but is water based so I’m sure fine. But helped get rid of some scuffs on my weather stripping makes them soft. For small weather strip areas, had to press sponge with cotton bud then use that with some on.
G**E
Good
Works ok
B**T
Seems to work!
Used to condition and treat roof rubbers for a vw Eos. Before treatment one area of the roof was just pouring water in during torrential rain in December. 303 was applied by dabbing and spreading over all roof rubbers for a few days. This seemed to have helped during sibsequent bad down pours. Fingers crossed for the rest of the winter!
M**A
Perfect
Works 👍🏿
B**Y
Shiny
Never seen my rubber so shiny
G**B
Not Sure
I use this on the roof and window rubbers of my convertible BMW. I have used every 2 months. Not sure if it is any better or any worse than my previous silicon spray product.
D**S
Rubber last that bit longer
I saw this on a YouTube video, it seems to do the job but in my case I used it for wipers on my car but I think it better for other rubber products as the cost of new wipers can be inexpensive. But this is a good product, I will buy it again in the future.
K**R
Works
Rubber window seals leaked on my car. This product helped soften the straight sections so they worked properly. Still had to use black silicon to seal the ends of seal where it gaped round the metal window frame.
Y**Z
Producto de excelente calidad.
Excelente producto! Lo adquirí ya que las gomas de las puertas de un coche con apenas dos años de uso comenzaron a hacer muchos ruidos con el movimiento del auto. Esto debido a que se encontraban resecas como resultado de la exposición a lluvias, polvo y un poco de sol. Una vez aplicado el producto en todas las gomas de las puertas los sonidos desparecieron por completo. Tenia mis dudas sobre los resultados de aplicar el producto, pero mis expectativas fueron superadas por completo. La textura del producto una vez aplicado muestra instantáneamente el resultado. Es un acabado no grasoso, por lo que no se pega más polvo del deseado. Es una compra que realizaré nuevamente para el detallado del auto.
Y**U
追加出来ないんじゃ ね
最高に良いんだけど 購入追加したらus amazonにキャンセルされた🤪
N**.
Seal condotioner
Conditions seals on convertible roof. Used it twice so far.
A**A
Awesome
We love it. We used it on the rubber around our 40 year old windows and it worked fantastic.
K**O
Customers always notice how clean the door seals look!
I’ve been using 303 Rubber Seal Protectant as part of my car detailing work, and it has become one of those essential maintenance products I rely on. What stands out about this protectant is how well it rejuvenates and protects rubber seals on doors, windows, hood, and trunk. I applied it to my 10-year-old car as a test subject, and the difference is remarkable — the seals look very good, feeling supple and flexible again, not stiff or brittle like untreated seals often do. For older or weather-worn seals, I noticed the original color and pliability return, which really helps maintain a tight, weatherproof seal around the doors and windows. The application is very user-friendly. The built-in foam-tip applicator makes it easy to target seals precisely without wasting product or making a mess. During application, it’s normal to see small white drops of the product on the seals, but once it dries, it leaves a smooth, clean, and well-conditioned finish. I simply wipe any excess after a few minutes — quick and straightforward. As a professional detailer, I can say this is a nice finishing touch that clients always notice. It elevates the overall look of the vehicle and adds that extra sense of care and polish that people appreciate. I find it especially valuable in hotter climates or when the car sits outside often. The product’s UV protection helps prevent the seals from drying, cracking, or fading due to sun exposure, which can save from costly seal replacements down the road. After treating my car, and a few customer cars at the shop, the difference is noticeable: doors close smoother, seals feel healthier, and there’s a lower chance of leaks or wind noise. Because of that, I consider 303 Rubber Seal Protectant a must-have for anyone serious about car maintenance or detailing. In short, 303 Rubber Seal Protectant works exactly as advertised: it conditions, protects, and revitalizes rubber seals. It’s inexpensive, easy to use, and gives a real improvement in seal performance and longevity. I’ll definitely keep using it and recommend it to others who want to preserve their vehicle’s seals.
Trustpilot
3 days ago
4 days ago