RUP5001117 International Ultra Proofer, 500 ml, Neutral, 500ml

I have a 2008 BMW Z4 and the convertible top needed some TLC to make it look better. I followed the instructions and my top now looks almost new! The water beads up and rolls off!

Easy to apply with a brush, easy to clean up, and seems like it has settled in well and really set up a waterproof barrier on my rag-top.

Excellent once on however it was very hard to apply to the top. this was due to the fact that it would not spread easerly, it took a lot of effort. However once on and dry this is an excellent product. Water just beads and runs away.

I used Renovo's Cleaner and Ultra Proofer on my BMW 3-series. The 500ml bottle was just enough to do the top, with a couple table spoons (20ml or less) left to spare. The top absorbed water before, and it beads now. Starting in the morning, I was able to clean the top with the first product, mask off the car and start applying the ultra-proofer. I left it in the garage for about 12 hours and drove it the next morning. If I can recommend anything, it would be to use plastic to mask the car rather than news paper. The ultra-proofer absorbs into (through) news paper. The product did not change the appearance of my black top, which was a concern of mine going into this. After having done it, I will do it again. As they recommend, I will do it again toward winter to protect the top from salt spray.

He used it to renew and protect his mini cooper roof. He said it’s not easy to apply, but after it’s done the roof was nice

I used this and used the cleaner first followed directions and my top looks new again .It repeals water . This product awesome !

Was able to do 2 coats on 2 cars with the larger bottle; a Pontiac Solstice and a C6 Corvette. Both came out beautifully.Wash your car first but do not put soap directly on the convertible top. I put soap directly on the Pontiac top and even though I rinsed it well, if you looked closely, you can tell where I dripped the soap. With the Corvette, I put just a drop of soap and I applied it indirectly and evenly via a very wet microfiber cloth. The Vet came out perfectly. The Pontiac looked good too but on close inspection, there was the soap marks.Get a plastic drop cloth to cover the full cabin so it comes out from under the top, draping over the full car.

Extremely satisfied with how well this product worked. Instructions to use a brush were not followed. A brush seems to apply to much product in one area. I used a tile grout sponge to apply the product and found it to be a better applications method. I ordered two bottles for a 2005 VW Beetle top and the process took 1.5 bottles for the first coat. The product is water based so the second coat repels on the majority of the top and soaked in where the top had creases and those areas are where I suspect the top was actually leaking before the waterproofing was applied.The top looks great! The product worked very well. No more leaking. Even looks rejuvenated.