Am Wed, 14 Nov 2007 09:01:31 -0800 schrieb "Don Stauffer in Minnesota":
And if it happens to clog permanently because you forgot one bottle somewhere on a shelf and rediscover it after half a year, just pull the steel tube out, hold it with a tweezers, use a lighter to heat it up to orange-glowing, so all stuff inside can burn off and evaporate. After cooling down (needs just a couple of seconds) re-stick the tube and all works well again.
As a very occasional builder of plastic models now (other hobbies got primary ones), I have one about half filled tube of revell contacta professional already over 3 or 4 years old, and used my procedure a couple of times when in need, and every time with absolute success.
cu, ZiLi aka HKZL (Heinrich Zinndorf-Linker)