According to Prusa3D FDM printer machine cleaning guide suggestion, it's better use >90% or 95% concentrate IPA (Isopropyl Alcohol) to clean the Spring Steel Sheet https://shop.prusa3d.com/en/accessories-mk3s-mk25s-mini/1013-mini-spring-steel-sheet-with-smooth-double-sided-pei.html.

However highly concentrate IPA easy to volatilize, and it's volatilize gas has certain toxicity to affect human body at not well ventilated room/area.

There for I buying Solvent Dispenser Jars https://www.talasonline.com/Solvent-Dispensers to sub-package the IPA; It's the self-priming glass bottle with metal head.

But after finish the cleaning job, it will leave little fluid in bottle metal head surface waiting for evaporation, so I using Autodesk 360 fusion to design this container to isolate whole Solvent Dispenser Jars in my room.

The basic size of Solvent Dispenser Jars will be Height: 101mm x Diameter: 51mm x Capacity: 100ml

*PS. Regarding to 3d printer result accuracy may cause cap screw fit problem, when you slicing the “BottleCap” stl file by your slicing application, please consider scale up 3% to make enough screw thread tolerance for easy screw purpose.