30-04-2010, 18:56
(This post was last modified: 30-04-2010, 20:14 by itsjust4fun91.)
In order to make this padding you will need to get the plumbing foam insulation from a hardware store. It's cheap and comes in 5 foot sections. It also is presplit down the side so you won't have to worry about cutting the slit for the rims to sit down inside and it had a preglued inside with a plastic cover that will help you stick it to the cups. You will find it in the plumbing section sometimes on the same isle as the camping tape and other insulation products depending on how they organize their store.
You will need to fit it around the rim to get an idea of where to cut it. It's best to not cut too much and slowly slice away the excess little by little until they meet nicely. Don't panic if it doesn't fit perfectly, you can fill it in with the silicone and still get your suction. And with the foam being 5 foot you do have extra for a do over.
Once you have it cut to your satisfaction you will leave the foam on the rings and while holding it in place, begin to fill it pretty heavy under the rim inside the foam so that you can see the silicone rising up on both the inside and outside of the rim . I only filled mine half full inside the foam to start with so it could dry well. I then took a piece of regular scotch tape and taped a piece over where the two ends of the foam met to hold it while it dries. It could hold on it's own in about 3 hours. I let that dry overnight, then the next day removed the plastic from the preglued edges that are on the foam and finished filling the inside of the foam to cover the rim top . I then pressed the edge against the cup inside and out. If the foam edge doesn't stick firmly to the cup don't worry, just fill it in with silicone. I used my finger and applied it heavily to each edge to hold it firmly to the cup and to seal it. After doing that I used my finger and applied a very thin coat to the entire foam ring. I only did this to ensure my lotion not messing up the foam, but it might not be required. A thin coat takes a couple of hours to dry, so I did the bottom first and sat them propped up upside down to dry, then flipped them over and did the sides and the top. I let them dry for another 24 hours before using them. So you are looking at roughly two days of drying time, from start to finish.
Here is a picture of the foam that was left over from this project so you will have an idea of what it looks like
You will need to fit it around the rim to get an idea of where to cut it. It's best to not cut too much and slowly slice away the excess little by little until they meet nicely. Don't panic if it doesn't fit perfectly, you can fill it in with the silicone and still get your suction. And with the foam being 5 foot you do have extra for a do over.
Once you have it cut to your satisfaction you will leave the foam on the rings and while holding it in place, begin to fill it pretty heavy under the rim inside the foam so that you can see the silicone rising up on both the inside and outside of the rim . I only filled mine half full inside the foam to start with so it could dry well. I then took a piece of regular scotch tape and taped a piece over where the two ends of the foam met to hold it while it dries. It could hold on it's own in about 3 hours. I let that dry overnight, then the next day removed the plastic from the preglued edges that are on the foam and finished filling the inside of the foam to cover the rim top . I then pressed the edge against the cup inside and out. If the foam edge doesn't stick firmly to the cup don't worry, just fill it in with silicone. I used my finger and applied it heavily to each edge to hold it firmly to the cup and to seal it. After doing that I used my finger and applied a very thin coat to the entire foam ring. I only did this to ensure my lotion not messing up the foam, but it might not be required. A thin coat takes a couple of hours to dry, so I did the bottom first and sat them propped up upside down to dry, then flipped them over and did the sides and the top. I let them dry for another 24 hours before using them. So you are looking at roughly two days of drying time, from start to finish.
Here is a picture of the foam that was left over from this project so you will have an idea of what it looks like