Editing Guide to Assembling Models (section)

=== Different Materials ===
Some models have parts made of different materials, typically these are plastic, metal, and resin. Most glues only work well with one material, so you'll need a multi-purpose glue for joining different materials. Generic "super glue" is good for fixing metal or resin parts to most any other parts. Plastic glue is only good for affixing (some kinds of) plastic parts to other plastic parts.

Pinning is also recommended, especially for larger parts; as a bond between two different materials with multi-purpose glue tends to be more fragile than same material joined with a material-specific glue.