Thread lock and plastic.

[militarymaxx]

Should I use threadlock on metal screws that go into plastic ?
Specifically the ones on the bottom of my chassis. Most of them
screw into something plastic, i.e. bulkheads, diff housings, rcvr tray posts, etc.

 

[El Pirata]

I generally use blue locktite in those applications without any problems. Locktite is also really good when the threads are nearly stripped out, specifically in the plasticmetal combos.

 

[Çh®i§tiªñ]

I wouldnt think it would work at all. In fact, the way lok-tite works, it needs metal to activate. For metal to plastic, use CA glue. Either medium or heavy thickness.

 

[NCNitro]

I do the same as Christian, I use a heavy ca glue.

 

[FastEddy]

Thread locking compound will deteriorate plastic.
Thick gap filling CA works well.

 

[militarymaxx]

Thanks to all for the info.

 

[El Pirata]

Your replies made me go looking for my locktite, "NOT FOR USE ON PLASTICS" in bold print. Learn something every day.