Here is a boutique product I'd be willing to test. The creator posted a pic of a tire that was treated, driven 135 miles in torrential rain and it held up extremely well.
"Tyre Coat 2.0 is the latest update to our ever popular tyre dressing/ coating. 2.0 is a dedicated formula designed not only to dress but to bond to the rubber on your tyre and last much longer than typical dressings. The new formulation not only performs better by spreading further, delivering a darker glossier finish but is also now solvent free and has a pleasant coconut fragrance. Tyre Coat is not a traditional water based product as such and only utilises the water element as a delivery method for the polymer before it then bonds to the rubber. This means the dressing will not wash away like some others do. The finish is usually fully cured after 10 mins and will never sling, the visual results are fantastic. A much darker tyre which has a slick glossy wet look finish is standard, as an added bonus a wipe over with a microfibre cloth during the cure stage will deliver a satin finish if you prefer. Regardless of which finish you go for in the end, the result is a protected tyre which is water and dust resistant with no stickiness or nasty surprises. In short, a dressing you can rely on every time." ~ Infinity Wax"
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"Tyre Coat 2.0 is the latest update to our ever popular tyre dressing/ coating. 2.0 is a dedicated formula designed not only to dress but to bond to the rubber on your tyre and last much longer than typical dressings. The new formulation not only performs better by spreading further, delivering a darker glossier finish but is also now solvent free and has a pleasant coconut fragrance. Tyre Coat is not a traditional water based product as such and only utilises the water element as a delivery method for the polymer before it then bonds to the rubber. This means the dressing will not wash away like some others do. The finish is usually fully cured after 10 mins and will never sling, the visual results are fantastic. A much darker tyre which has a slick glossy wet look finish is standard, as an added bonus a wipe over with a microfibre cloth during the cure stage will deliver a satin finish if you prefer. Regardless of which finish you go for in the end, the result is a protected tyre which is water and dust resistant with no stickiness or nasty surprises. In short, a dressing you can rely on every time." ~ Infinity Wax"
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