Building up plastic

[SS454]

Not sure about pressing them on but as for what product to use 3M makes a system call AutoMix which is a two part epoxy that will work great. We use these in collision shops every day and the part # that will work good is 08115 it's called panel bond for putting on door skins and other sheet metal with out welding. But it works great on steering wheels i have some drying right now on my 69 SS wheel. Hope this helps.