If you first use one of the included plastic tips or straws that attach to the solid teflon tip, RIVET THEM WITH TAPE. Otherwise he will blow up the end of the gun. Second, I leave the glob of foam that inevitably forms at the end of the barrel in storage (assuming I'm not running acetone through the gun to clean it for long-term storage). .) I like to think that this both helps protect the teflon tip from abrasion and acts as an extra barrier for the foam in the tip to harden. (Yes, that last bit seems like wishful thinking. But I left the foam ball with foil around it on one of the plastic tips for three days. Then I just unscrewed the ball, cut off some of the plastic. Remove the tip and use the rest of the plastic tip when spraying from a can and a half of foam. The foam on the underside of the plastic tip hasn't cured. useful for me. Not very useful on this long gun. They can be useful for turning corners and in ways a straight barrel can't reach. But the length of this gun's barrel forces you to handle the gun with one hand and bending the plastic into straws to fit in hard-to-reach places is a bit uncomfortable I love the little plastic tips B for shooting into smaller gaps or just to apply a little foam for glue purposes.Now I need to order more plastic tips or find something else to use for Target Ex tra tip to use: adhesive tape (gorilla tape). I use the ones I use to attach the plastic tips to the ma so it's easy to unscrew the hardened foam balls. I even started wrapping tape around the barrel next to the teflon tip just to make unscrewing the hardened foam balls easier. It's almost like having an elongated teflon tip.
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