Its most likely an epoxy covering, but still.. removal of that with some rubbing alcohol before soldering, and prompt cleaning afterwards to remove flux will be required. Layered epoxy over the components after proper operation is verified will be helpful as well.

'99 CSVT - Silver #222/276 In a constant state of blow-off euphoria.
Originally posted by Kremitthefrog:
I like to wear dresses and use binoculars to watch grandmas across the street.