Hello all, I've just completed a home made digital thermometer via: http://sci-toys.com/scitoys/scitoys/computers/thermometer/thermometer.html My problem is that I need the LM35 temp. sensor circuit to be water tight as it will be completely submerged in PROPANOL. My initial idea was to coat the leads in clear nail polish, isolating the exposed leads coming from the sensor. But since it will be submerged in isopropanol (which is a pretty good solvent), I was worried that the nail polish would eventually wear off and short circuit the system. Any suggesstions? This is what needs to be water-sealed: Thanks guys!