mtnmanak
™
- Joined
- May 5, 2020
- Messages
- 2,063
- Reaction score
- 2,783
Is grain bonding required for this motor?
Honestly, I can't remember. I have gotten into the habit of grain bonding all motors that are 54mm x 4-grain and above. I grain bond those motors when I buy them, then tape the ends off and vacuum seal the whole assembly with the nozzle in. When it comes time to use it, I tear open the vacuum seal and assemble the motor.