Have you done the usual Harpic Power treatment? That gets them back to a shiny silver colour. Still have to clean and polish them after but makes a bit difference
Quote from: Dudeofrude on 01 December 2019, 04:04:05 pmHave you done the usual Harpic Power treatment? That gets them back to a shiny silver colour. Still have to clean and polish them after but makes a bit difference Ideal! Thanks, I have the headers removed, do I simply pour it over the downpipes, leave, then wash it off? Or should I scrub them with a hard brush? Harpic should at least get the shit off!
Quote from: Decoke Dave on 02 December 2019, 11:05:19 amQuote from: Dudeofrude on 01 December 2019, 04:04:05 pmHave you done the usual Harpic Power treatment? That gets them back to a shiny silver colour. Still have to clean and polish them after but makes a bit difference Ideal! Thanks, I have the headers removed, do I simply pour it over the downpipes, leave, then wash it off? Or should I scrub them with a hard brush? Harpic should at least get the shit off! Best method is to pour some harpic in an old cup and then grab a paint brush and just paint it on (paint brush helps get in all the nooks and crannies) leave for 5-10 minutes then just rinse off. You'll see the change instantly. Has to be Harpic Power though for some reason as normal bleach wont work. That Harpic has some kind of extra corrosive ingredient 🤷♂️
Quote from: Dudeofrude on 02 December 2019, 03:15:56 pmQuote from: Decoke Dave on 02 December 2019, 11:05:19 amQuote from: Dudeofrude on 01 December 2019, 04:04:05 pmHave you done the usual Harpic Power treatment? That gets them back to a shiny silver colour. Still have to clean and polish them after but makes a bit difference Ideal! Thanks, I have the headers removed, do I simply pour it over the downpipes, leave, then wash it off? Or should I scrub them with a hard brush? Harpic should at least get the shit off! Best method is to pour some harpic in an old cup and then grab a paint brush and just paint it on (paint brush helps get in all the nooks and crannies) leave for 5-10 minutes then just rinse off. You'll see the change instantly. Has to be Harpic Power though for some reason as normal bleach wont work. That Harpic has some kind of extra corrosive ingredient 🤷♂️Harpic Power 10 is Hydrochloric Acid in a gel suspension. Works a treat, but keep if alloy casings. Regular bleach is an alkali and wont react with the corrosion.