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I tried this as a cheaper alternative to a German competitor product I’d used in the past. I think the competitor is worth the money. The 303 product is easy to apply, but I don’t see or feel a significant difference in the seals. Maybe it’s doing more than it appears, but the competition gave obvious and immediate results. The 303 product is water based and quite thin. I used the competitor product to coat an exposed sunroof seal, and after a heavy applications, the seal was noticeably more flexible and supple and soaked up the conditioner. The fit to the glass clearly improved and wind noise dropped. I don’t think the 303 product would rival that outcome with two dozen applications. It’s a light rubber dressing in my opinion, but not a serious conditioner or restoration product. I’ll go back to the competitor.
Love the brand, just this for some reason did not work. Almost like water. Again, the brand is ACE, but for some reason this did not do what it stated. I followed the directions to the letter, but no success. I use other 303 products so not saying anything against the brand.
What it did to my trim and some rubber bushings was harden them. Put it on old rubber bushings hoping to revitalize them if even just a little bit, and 303 actually made them worse. They split, when they weren't split before. Should have used simple silicone spray like I've done in the past.
It absolutely works but only lasts for a couple of weeks. I tried it on multiple vehicles and it does a great job quieting door seal squeaks but wears off after a couple weeks and needs to be reapplied.
303 makes great products, i have been using them since the 80's. i am a bit disappointed in this one. it seems to be just the plain on 303 Protectant in a smaller applicator bottle. i was hoping that this would be a move viscous fluid for the weather strip but it is just like the normal 303. guess i fell for a bit of a marketing ploy here. recommend if you are looking for something like this just buy the plain old 303 and apply it with a rag. The plain 303 protectant is $15 per quart a much better value. Maybe someone from 303 can respond and tell me how this is any different?
Didn't do anything for a 2017 Ford Focus, all it did was leave streaking marks on the door weatherstripping, re-applied several times, no improvement, expensive fail. Maybe it'll work better for your car.
This product is really tough to review. It is supposed to protect and condition seals. I applied it and it was very hard to tell where the treated portion started and ended. The applicator was not easy to use and follow the contours of my vehicles seals. When applying to the seals with the bottle inverted it stops flowing. The seals needed to be dry before using. This is also difficult to determine so I noticed some adhesion that could have caused damage. So a word of caution. I suppose over time it may lengthen the useful life of seals but this would be very difficult to test. If I bring this out from the recesses of my garage shelf I'll report further.