M-D Building Products 71548 M-D Replaceable Caulking Cord, 1/8 in W X 90 Ft L, Gray

Is this product paintable (with latex paint)?

Can this be used as a backer on trim, with regular Big Stretch caulk on top for more permenance?

Can thisbe applied to a surface that is slightly wet? Like can it be put around a window if the window is weeping condensation?

Is it non-toxic?