Emergency Care and Transportation of the Sick and Injured ...

b. Make pistons out of phenolic resin to deal with corrosion. c. Dust boot can seal surface of piston. 9. Although the phenolic pistons themselves do not corrode, the cast iron bore of the caliper does corrode and rust. a. Can cause a phenolic piston to seize in the bore. 10. Phenolic pistons transfer heat slower than steel pistons. a. ................
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