M_Boats: epoxy

Group, this is off-topic, but my boat is under shrink wrap for the winter and it's on to jobs I have been putting off.  I epoxied an arm on a wooden chair crooked.  I understand that heat will soften up the epoxy.  Can I soften the epoxy with a heat gun, straighten the arm, and let it cool and harden, or once it has been heated, is the epoxy shot?  Thinking about spring, I am looking at tiller extenders.  Any recommendations for m-15? Mike m-15 Anne Bonny (all tucked in for a long winters nap)