I finally gave up on making my own. I tried to make my own several times, but with the bubbles that remained after the sleeve cured, I was left with sleeves that were not airtight. I found a guy on eBay that has been offer the sleeves for years and have now bought several from him. I’m very happy with the quality. While not a cheap as making them myself, you get what you pay for. The link for the sleeves:
Originally Posted by dickerschwanz
Bubbles.
Found a glass bottle that fits right into the opening of my pump.
Poured the silicone into the bottle and tightly fitted and taped it so there is a perfect seal and pumped away.
Worked good. Could see the bubbles rising.
Also pour the silicone in a thin stream into the form. This helps avoiding new bubbles.I recommend to first dry run such a setting to check if its sealed enough.
Ideal size: I did choose half the diameter of my erect girth. I did 3 versions with slightly bigger and smaller diameters.
All are Ok and I recomemnd to have several diameters as they could be usefull for different situations.
Obviously you want a diameter that at least slightly grips while flaccid.
There are many possiblities cause its not only abouut the inenr diameter but also about the wall thickness of the sleeve.
My thinnest wall size is about 0.2 cm which is fairly loose with the ecoflex 30. I think 0.5 is probably the best for an ADS option.
CAP:
I don’t use one.