Quote:
Originally Posted by Dylan@Adams
Browning typically is from a couple of possible issues -
1) The mold release used when the tires are made can be a problem, its what allows the tire to pop out of the mold when its made, but some manufactures seem to use A LOT of it. In many cases it will take multiple cleanings and scrubbing to get all of it off. Until the mold release is completely removed you'll continue to see traces of brown showing thru... I've had tires that seemed to have an endless amount of the stuff. APC + Tire Brush + Multiple Cleanings finally did the job.
2) Heavy silicone dressings can give you a similar effect... the silicone itself turns a brownish tint by virtue of holding the dirt and brake dust in it and sticking to the tire. Again here, thorough scrubbings and switching to a quality water based dressing should remedy the problem.
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Interesting, thanks for the clarification
