Koch Chemie Perfect Finish Sealant (PFS)

When it comes to that final, showroom-quality look, we’re big believers in making the last step count — and that’s exactly where Koch Chemie Perfect Finish Sealant (PFS)shines. This isn’t just another quick-detailer-style product; it’s a high-grade, polymer-based paint sealant designed to protect and enhance your vehicle’s finish in one go. 

We like it because it does two things exceptionally well: it seals the paint with a durable, synthetic barrier, and it delivers a deep, wet-look gloss you can actually see in different lighting conditions. The formula uses advanced polymer technology that bonds to the clear coat, creating a hydrophobic layer. That means water beading that lasts, reduced contamination build-up, and easier maintenance washes. Scientifically speaking, hydrophobic surfaces minimise the contact angle of water, which reduces the time moisture spends on the paint — helping to limit water spot etching and surface oxidation over time. 

Application is refreshingly straightforward. Whether you’re working by hand or with a finishing pad on a DA polisher, PFS spreads evenly and buffs off clean without hazing. We’ve found it especially forgiving on darker paint colours, where some sealants can streak or leave residue. The slick finish it leaves behind doesn’t just look good — it also makes dirt and road film less likely to stick, which is a win if you’re serious about keeping your car cleaner for longer. 

One of the standout points for us is the balance between gloss enhancement and protection. Some products lean heavily towards visual impact but sacrifice longevity; others last for months but don’t quite deliver that depth of shine. Perfect Finish Sealant sits right in the sweet spot, offering both, thanks to its hybrid blend of gloss-enhancing agents and resilient polymers. While durability will vary depending on wash routine, environment, and prep, we’ve seen performance hold up well for several months under mixed driving conditions. 

If you’re into your detailing routine, this works brilliantly as a final stage product after polishing — locking in that freshly refined finish. If you’re less about the multi-stage process, it still works as a stand-alone sealant to boost gloss and add protection to otherwise clean paint. It’s also compatible with most waxes and ceramic coatings, so you can layer it if you want to experiment with extra depth or protection. 

In short, Koch Chemie PFS is one of those products that earns a spot on the shelf because it delivers professional-grade results without overcomplicating the process. For anyone looking to add long-lasting protection, a slick surface, and a gloss that turns heads, this sealant is a solid choice.