Originally Posted by zWarlord
NO NO NO dammit. How many times does it have to be said. Delrin WILL NOT SWELL IN THE PRESENCE OF OIL! Only water. If it were to swell because of oil, we are all going to die because physics just went out of the window. All the oil will do is mess with the paint cause it will give spin to the ball.
not completely true. It is far easier for a water molecule to penetrate delrin, that is true. But I guarantee you that some oil, even if it be an easily ignorable amount, will be absorbed by the bolt. When the temperature you play in goes up the delrin will swell even more and having any liquid on it at all will worsen the situation ten fold. Don't oil the bolt, its self lubricating for a reason.