This can be obtained by setting a tamed achatina to wander, then waiting until it produces 100 achatina paste, then after it can also produce 100 organic polymer.

Wild and tamed achatinas also produce these as feces, if you drop achatina paste it will look like a white version of small feces.

It’s cementing pastes crafting recipe just change achatina to cementing

It's necessary to kidnap one if you don't wanna waste allat of cake for one snail

The replacement for cementing paste, produced in a tamed achatinas inventory, and cannot be crafted despite the recipe being shown