I am gearing up to get my t500 painted back to factory colours , but when it was last painted , the previous owner bogged the badge screw holes and applied stickers instead. Does anyone know how to remove the bog so I can use the screw holes to attach my tank badges ?
Dig out as much as you can and sandblast it. Some industrial paint strippers will soften it and maybe blast of with water pressure.
If you can vent it out so there are no fumes left you could apply some heat and melt it out.. You do have to wonder about some people when they do things like that..
If it's fibreless bog, then it's essentially just resin which is you started with a very small drill hand held in a chuck down the centre , then you should be able to use a pick to start the thread if there is one and progress to a 'through' tap Heat will always soften it, but how much heat you'd want with the potential for any residual petrol fumes is your call unless you do a full ethanol, then water flush
I believe acetone does dissolve it a bit, too, but might be slower that paint stripper. You might be opening a can of worms, though. Good luck.
Rehabsk for all your suggestions , will look at this shortly, if it proves too hard then I can always use tape or glue to attach the badges
try some acetone- to my knowledge most bogs use fibreglass resin as the setting agent with esky dust. acetone softens glass resin.
Acetone does soften polyester based resins very very slowly as it's the solvent to remove the resin before it's gelled, although it can take the sheen of cured resin. You could go meaner solvents like MEK - methyl ethyl ketone - bugger nasty - full respirator or even methylene chloride - full respirator outdoors as the fumes actually land on your eyeballs, it is one component of paint stripper so if you have a little, worth a try if you have some to hand
avoid mek as if it gets your eyeballs the scarring is unrepairable. acetone will also dissolve the ground esky powder.