Greetings every1
It's very true that eventually silicon will be detrimental to plastics, the best solution is to go to RADIO SHACK
& purchase a lubricant friendly to plastics, I did & never looked back. Name is "RadioShack Multi-Purpose Lube Gel" net Wt. 3oz.
Cost is $3.99, doesn't attract dust, works in -45^ to +450
degrees F, it works on almost any product. Model plane builders & Model plane fliers use it a lot. Item # 64-2326 or 64-2826.
Cheers,
Happy1