Kelly's Cork Renew Sealer (2.2 fl oz) - Waterproof & Protect Cork Surfaces w/ Brush Applicator - Water Based Formula Dries Clear, Prevents Drying & Breaking Down of Sandles, Shoes, Fishing Rod, Coasters

Easy to use! I bought it to freshen up my Birkenstocks and I wish I would’ve bought this 20 years ago. Dries shiny and clear.

Stuff works. Replaced first bottle because over the course of a year bottled glued itself shut impossible to open. Use on Birkenstock collection.

I use these to resell my Birkenstocks that I’ve had for a couple years now it’s been very durable, and I only have to reseal it about a year later very easy to apply because of the nail polish brush tip even better than what my Birkenstocks came with

Love love love this stuff! I bought a pair of old Birkenstocks from the thrift store at my local Air Force base for $1, and they were pretty gross. I scrubbed them hard with powdered oxiclean, dish soap, and pretty much anything else I could find. I watched cleaning videos for old Birks, and you can totally restore the suede footbed by using sandpaper and completely sanding off the shiny toe/heel footprints! Anyway, the finish on the cork was peeling and I might have scrubbed a bit too hard with my bristle brush as well, because some little chunks of cork were falling off. I need something to seal the cork. So, I bought the Cadillac brand (green bottle) and it did almost nothing. I was super frustrated, and bought this, which looked more like the stuff they used in restoration videos I’d watched - it looks like a thin white Elmers glue. And it WORKED!!!! Perfectly shiny, seals in the cork! The bottle says it waterproofs unlike the other stuff I got. If you put it on as thick as my picture, it’ll puddle a bit as it dries, so it’s best to do two thin coats instead. You can see the difference between the two brands in my pic.

Not a bad price. This is a white liquid that is applied with a brush. It dries clear. Works perfectly. I have one complaint. When I first got it open, there was a plastic piece on the top that had a small opening that kind of restricted the amount of fluid pulled out on the brush. It was helpful. The second time I opened the bottle, it was gone, and had apparently gotten stuck up inside the lid. This made application of the product a little messier, but once I got the hang of it, not bad. I just think if you design a functional piece, it should actually function. Would still recommend. Pics show one of my attempts at application, and then the dried product.

I have a pair of Birkenstocks I've been wearing ~2ish years now (right/brown in pic above, unless pic is upside down then it's on the left). These are my go-to summer shoe and are worn quite regularly and in all types of conditions minus any extreme raining/downpours or overtly sandy areas. As you can imagine they've gotten a bit of a beating, and as such it was time to reseal that cork, because as one should be aware even though cork is incredibly durable and supportive, like leather it needs to be maintained so it can CONTINUE to be as durable as day 1. That's where I came across this Kelly's Cork Renew. It's a good sized bottle and for the price point I can't find anything that competes (including Birkenstock's own sealer which is more expensive than Kelly's).Application was incredibly easy, and I did two coats for my old pair as they haven't been resealed before, but from now on I realistically will only need to do one coat for maintenance every few months. The applicator brush lays the sealant thick across the cork in an obviously white shade, which fades as it dries to clear. I usually wait at least 24 hours before wearing them again and at that point that healthy clear sheen is present on the cork as it looks on brand new Birkenstocks. To confirm this peep my brand new tan pair to the left which hasn't received any coating and hasn't been worn once (since my current pair still refuses to die). My eyes see no difference, especially in person, and the cork looks amazing and healthy as a result.Do yourself a favor, buy it, try it, and hold onto it because there's enough sealant in this bottle to last a long time. Also word of advice: don't put off sealing your birks until it's too late. I have friends who absolutely have no regard for their sandals and beat them to within an inch of their life. You've probably seen the type where the cork is degraded to bits and a lot of the cork has been weathered away to the point it looks like people are walking on their heels. You can't restore cork that's been broken off/removed, and if you don't reseal and condition the cork then it just becomes a matter of when, not if it will need to be repaired. If you plan on keeping your sandals for a long time then use this product to maintain that cork to practically brand new condition for years to come, and follow that up with conditioning the leather straps/material as well (with an appropriate conditioner) because you don't want that leather cracking either. So yes people, take care of your investments.

This cork sealant is fantastic! I purchased it after seeing it recommended by a licensed Birkenstock shoe repairman in the r/birkenstock sub on Reddit. He said it's what they used in the shop to do cork repairs. I used it on my Bostons and it made them look fantastic! This does make the cork shiny, but I actually really like the way it looks, and I'm planning on using it on my much newer Milans soon.

I never write reviews but I was so disappointed in this product I had to share why. When I unscrewed the cap it was hard to get it off and when I finally did I belief the brush broke off (I assume the brush wand was supposed to be attached to the cap so you can brush the product onto your shoes). Then I got some pliers to pull the brush out of the jar and the actual brush head broke off the wand. I thought the stuff was supposed to be liquid since it says you brush it onto your shoes but it’s more like a solid- like cream substance or some sort of a sponge in the container with maybe liquid soaked into it (????) I don’t know what it’s supposed to be like. All I know is I can’t figure out how to get the stuff out of the container and it is completely useless to me. It was a complete waste of money and I’ll probably just throw it out.