Another bolt sealant question

Sealing case halves should be done with a bonding sealant. Such as Yama-bond or Honda bond. My son does many engines such as Subaru. Street bikes and several Micro motors. The material is a light gray thick paint in a tube. There are several different names in front of the word "bond" but it is all the same stuff. you can buy it at any bike shop. It is what all engine builders use on machined cases where a gasket can't be used due to bearing clearances. It hardens and cannot contaminate internal parts. It is always applied to both surfaces.