Scott intentionally designed Peg Away Putty® to work not only with SquarePegToys® silicone, but with pretty much all other silicone lines as well, as long as they are made from 100% Platinum grade silicone.
Some of the fillers used in cheaper silicone products will prevent a good bond from forming. These are the ones that are often overly hard in nature, and/or have a slight burnt plastic odor to them. Pure silicone is of course, odorless and pliant.
If you are unsure whether or not Peg Away Putty® will adhere to a certain toy, it’s recommended you test first with a small amount on the base of the toy. As formulas can change over time, assurances can’t be made when it comes to the reliability of Peg Away Putty® adhering to other product lines than SquarePegToys®.