An adhesive made from elastic polymers (typically latex) mixed in a solvent to keep them fluid enough to be used.
Any of various easily-melted alloys, commonly of tin and lead, that are used to mend, coat, or join metal objects, usually small.
Figuratively, circumstances or emotions that strongly bond things or persons together in analogy to solder that joins metals.
to join things as if with solder.
to join items together, or to coat them with solder