Originally Posted By: zzyzzx
I used a nail. IMO, Drilling or cutting is likely to contaminate the leftover stuff in the can.
^^^This.
I worked in QC and R&D for an aerosol product manufacturer quite some time ago. I used a center punch but a large nail works fine too. I drained more aerosol cans this way than I can count.
I do not recommend venting cans that still have propellant in them. It can be done but you do so at your own risk!
Do NOT use a Dremel on an aerosol can. Ever. Many types of propellants and solvents are EXTREMELY FLAMMABLE.
I used a nail. IMO, Drilling or cutting is likely to contaminate the leftover stuff in the can.
^^^This.
I worked in QC and R&D for an aerosol product manufacturer quite some time ago. I used a center punch but a large nail works fine too. I drained more aerosol cans this way than I can count.
I do not recommend venting cans that still have propellant in them. It can be done but you do so at your own risk!
Do NOT use a Dremel on an aerosol can. Ever. Many types of propellants and solvents are EXTREMELY FLAMMABLE.