Epoxy is probably the best choice. You may want to have the tub sand-blasted first.
The cast of Adhesive Plaster - 2011 includes: Setareh Eskandari Ahmad Mehranfar
The cast of Adhesive Love - 2014 includes: Madison Comerzan as Rebecca Jones Peter Selis as Eric
The cast of Bond. Classic Bond. - 2008 includes: George Lazenby as himself
Clean House Comes Clean - 2007 Clean House Cast Favorites was released on: USA: 8 September 2010
You can use salt and oil to remove rust and give it a good clean to season it.
The cast of To Be Bond - 2012 includes: Freya Berry as Moneypenny Porter Flynn as Bond Villain
The cast of How to Clean a Cast Iron Pan - 2012 includes: Ahmed Khawaja
The cast of Bond - 2009 includes: Nathalia Zemel as Menina
The cast of Carrie Jacobs-Bond - 1933 includes: Carrie Jacobs Bond as Carrie Jacobs-Bond Ralph Kirbery as Singer
The cast of The Bond Between Us - 1953 includes: Jack Arnold
The cast of Mat bond - 1967 includes: Shirley Koh Mat Sentul
He got cast and played him, with his mind.