Question: I am an avid user of epoxy sticks, and I have always wondered whether silicone adhesives and sealants in a similar form are available that can be mixed and molded by hand. This could be a very useful product for small caulking applications and repairs.
Answer: I am not aware of such a product being available. The epoxy sticks comprise a cylindrical product that has a hardener on the inside and epoxy resin on the outside. They are manufactured by a co-extrusion process. Because of the very high viscosity of the components, which are soft solids, they either don’t react together or they form a thin solid film, which acts as a barrier to further reaction until they are mixed together by hand.