Screaming brakes

My new to me bike has been equipped with new SLX brakes with the ice tech rotors. When these things get wet they make one hell of a racket. I have XT with non Shimano rotors on my other bike and do not have this problem. I’ve done the high speed braking to work them in but they are still noisy. Any ideas?

Try not engaging them. They will be really quiet then

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Make you faster too. For the short term at least.

Could be a resin pad vs metallic pad thing. Shimano usually specs resin as original supplied pads, but they also make metallic pads that get pretty loud with any moisture.