Thickened Epoxy
From ketchup to peanut butter
I really like this West System epoxy. It's really strong, it works well, and it's convenient:
With my small pump kit, I can get the proper 5:1 mix easily every time.
As mixed, it's runny, and flows well over surfaces and into joints:
West System also packages this thickening agent:
It's powdered silica that's so finely divided that the particles are measured in Angstroms!
The stuff is incredibly light and fluffy.
This full quart has a net weight of less than 2 ounces!
When thickened, epoxy is commonly described in terms of food!
In a photo above, you'll see the ketchup thick version in the lower right corner.
Here's some mayonnaise:
Ketchup runs, but mayo is thick enough to flow a bit and stay put on a surface.
Peanut butter will not only stay where you put it, but it can also hold lightweight structural elements in place without clamping: