SD Blue,

Are you are saying to use the Dremel tool to "polish" away the melted, slightly brown end of the prisms? In other words, to provide a clear end on the prisms to accept the light from the bulb?

I would think the tape used to seal the exhaust stacks on gas water heaters might do the trick. It certainly can take the heat.

__________________
Tom Evans
69 280SE 91K (wish I still had it)
73 220D 98K
78 300D 134K
78 300D 185K
81 300SD 301K (still have)
82 300SD 321K (still have)
84 300D 268K
84 6.2 Diesel GMC Suburban 225K (a whole different story!)