Looks like there's some conflicting information out there on whether Halotron leaves a residue or not. I'm also seeing info where it's a considered a "clean agent" and does not need cleanup.
'55 Bel Air Sport Coupe - Ram Jet 350 / T56 Magnum 6spd, Restomod Completed September 2012
'57 3200 Pickup - 305 TPI / 700R4, Restomod Completed October 2015 PHOTO, PROJECT THREAD
'83 Choo Choo SS El Camino - LT1 350/4L60e, Owned for 25 Years and Restomod #2 Completed November 2018
'08 Corvette - LS3 / 6spd, 3LT, Atomic Orange, All Stock