Volvo caliper grease is very good . Used @ some customers request.
Yup, I use a rubber grease, as Kiwi said, very light coating. The one I use is marked and certified for use in brake systems.The red grease is rubber grease, no hydrocarbons to make the seals swell.
But apply the grease very lightly, too much and it can block ports and passages in the caliper assembly.
Brake fluid is recommended for assembly by Suzuki
As I said above, bearing grease has hydrocarbons and has the ability to make the piston seals swell . . that could be catostrophic.I've always used bearing grease. Use a light coating and it has done me well.
That’s how I cleaned them. Whatever they are they have a coating on them. Don’t think they are steel. Went back together nicely. Bled them for a while. Now have the lever zip tied and I’ll do another bleed tomorrow.The seals are very strong . Key to clean them is a Terry towel pulling them through like a rubber band they will stretch, and return to shape . Wet towel with clean brake fluid.
Are your pistons Aluminum?
Zrx's are steel piston in same calipers.
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