REAR BRAKE CALIPER PREP BEFORE SANDBLASTING
Before starting the sandblasting process on the rear brake caliper bodies, I needed to properly mask and protect a few critical areas. In particular, the hydraulic piston bores and the internal brake fluid channels or ports must be shielded from blasting media to avoid damage.
https://i.postimg.cc/DzfJwt5z/1-Before-Masking-2.jpg
(Above) The pair of calipers prior to masking.
My approach was straightforward. I used masking tape to seal off the two fluid channels that allow brake fluid to pass between each half of the caliper. For the hydraulic piston bores, I inserted a dense foam material to fully block off the openings and prevent any abrasive media from contacting the internal aluminum surfaces.
https://i.postimg.cc/VNsrk34d/2-Tools-Required.jpg
(Above) The tools and materials used to seal and protect the caliper components during preparation.
After about an hour of work, all the necessary areas were sealed and protected. The foam inserts worked particularly well for the piston bores, creating a snug barrier. For the fluid ports, I used a simple but effective technique—lightly tapping around the edges with a hammer—to cut perfectly shaped circles out of masking tape for a precise fit.
https://i.postimg.cc/hG4ztHMt/3-After-Marking-Up.jpg
(Above) Fully masked and ready for sandblasting.
That’s as far as I got for the month of July. Progress may have been limited, but it’s a solid step forward. The next stage will be to begin sandblasting the calipers, which I’m aiming to tackle soon.
By
DJ_Party_Favor ·
I live near northampton, are the any good 300 specialists near me?