[sharpiel]

Searched a few threads but couldn't find specifically the information I wanted, so throwing it open to discussion.

Today I bought two Desicant caps to fit into the eyepiece holder of my Lunt and TOA. They look like the picture below and have Desicant bags that can be dried out and re-used. All good.

What I want to do is find a way of securing some of the little bags to the inside of the dew cap at the front of the scope. Needs to be removable for drying out but secure enough not to fall off the inside of the dew cap onto the front lens. I considered bluetac but need to know that no damaging gasses or fumes will be released onto the front lens with the cap on.

Does anybody have any thoughts or tried better solutions?

As a follow up question: Does anyone know how to store the spare dry desi bags to prevent them collecting moisture?