Review on 🔒 303 Rubber Seal Protectant: Revitalize and Safeguard Rubber Seals on Doors, Windows, Hoods, and Trunks – Enhances Color and Restores Old Seals, 3.4 fl. oz. (30324) by Christian Byrd

I tried this as a cheaper alternative to a German competitor's product I had used in the past. I think the competitor is worth the money. Product 303 applies easily but I don't see or feel any significant difference in sealing. It may do more than it looks, but the competition has produced obvious and immediate results. Product 303 is water based and fairly thin. I have coated an open sunroof seal with a competitor's product and after intensive application the seal was noticeably more flexible and conformable and took care of. The fit on the glass is significantly improved and wind noise is reduced. I don't think the 303 product can match that score over two dozen uses. In my opinion, this is a light rubber bandage, but not a serious conditioner or recovery product. Back to the competitor.