

✨ Prep like a pro, shine like a legend! 🚗
GYEON Prep Redefined 4L is a professional-grade pre-coating spray designed to remove polishing oils, wax residues, and contaminants from multiple surfaces including paint, glass, plastic, and carbon fiber. Its fast-drying formula ensures a streak-free finish and enhances chemical bonding for superior ceramic coating adhesion and long-lasting protection. Widely trusted by enthusiasts and pros alike, it streamlines the prep process for flawless, durable gloss and hydrophobic performance.









| ASIN | B06XCBPDQT |
| Best Sellers Rank | #8,554 in Automotive ( See Top 100 in Automotive ) #109 in Waxes |
| Brand Name | Gyeon |
| Customer Reviews | 4.7 out of 5 stars 2,317 Reviews |
| Item Form | Aerosol |
| Item Height | 40 centimeters |
| Item Weight | 1 Kilograms |
| Manufacturer | Gyeon |
| Number of Items | 1 |
| Recommended Uses For Product | Cleans, For Paint Protection, For Polishing |
| Specific Uses For Product | Cleaning, Preparation, Application |
| Unit Count | 135.3 Fluid Ounces |
J**M
Gyeon is the way to go
Amateur detailer on my own stuff, but I try to use good products. Gyeon makes ceramic coating dead simple. The final product is 1000% driven by the work you do BEFORE you apply the coating and Gyeon Prep is a fantastic last step of prep. It removes grease and oils that will prevent the coating from adhering to the paint giving a nice surface to work with. Their Pure Evo is REALLY easy to apply and the results are fantastic. That combination will give you a really nice final product.
J**Y
Excellent prep….
I love this stuff. I’m a weekend warrior as far as detailing, but this stuff smells great and works well to prep the cars. Highly recommend
C**C
Works well, great value for the money.
This works really well, and it’s a great value for the money. Goes a long way.
S**.
It works
High quality, great
N**D
Works a treat
Used after cleaning wheels in preparation for ceramic coating. Worked a treat.
I**M
Nice product, tricky to justify over IPA
Seems to do a nice job of removing polishing residue and old wax/sealants from the paint, but again so does the alternative of alcohol and water. The product smells nice, has a great presentation, and nice sprayer (same the one Car Pro uses). It only takes a few sprays to wipe down a panel. It doesn't necessarily make removing polish from a panel easier. But after wiping with a towel and spraying this on the panel you have a tactile sense that the panel was cleaned. I also find that spraying this on after wiping off the polish is the most economical way of using it. If you are willing to spend the 15 bucks it is definitely an improvement over IPA, but not a massive one by any stretch. I do think if you are applying Coating this is must. Even if you are just using wax, spraying this on and cleaning the panel seems to extend LSP durability and mitigates any concerns over product compatibility.
P**W
Works well as prep
Strong odor, seemed to work well enough as prep for ceramic which went on easily and buffed out well, possibly in part because of this prep spray.
J**E
Better than IPA
I was going to use an IPA but heard this works much better and smells better. I tried it and I think it’s worth it.
Trustpilot
1 day ago
2 weeks ago