Originally Posted by Wadaltmon
Well, if you add magnesium oxide and it expands the whole time like you say, it may or may not extrude correctly, depending on the material your spinneret is made of. But as it sounds, it should work. I may be overthinking the viscosity of your formula though. And I have never looked for heat-shrink at Home Depot, but I know they have electrical tape. And yeah, I get how the valve works... I just don't get how it's actuated when you put in the cartridge.
And do you know the name of that cap piece that you can screw stuff into the end of? That would be awesome for my shooter.
Do you mean the PVC cap or the small green one?