Hi! New participant in the OptiBoard community, I would like to give my greetings and also present to you problems I am having with setting up our surfacing lab. Below I've listed the equipment and materials we are currently using as well as pictures of a couple of our problems;
Blocker - Optek Unity Max Blocker (Wax)
Generator - Optek SL Profile
Finer/Polisher - Optek 425 Surfacer
Lens - Sola PolyCarb SFSV 74mm 6.25base
Lap - Plastic
Water and Polish is chilled to 60°F
Surfacing Process - 2 step - 1st Step - PSI P280, high speed for 1 minute @ 19.8psi
2nd Step - 15um Orange Strip (Optifilm/Durafilm), high speed for 2 minutes @ 19.8psi
Polish - Clearly Digital (3300G from PSI) + Maize HD Polish Pad from PSI, high speed for 6 minutes @ 19.8psi
In this picture, there are these very small scratches visible in the reflection, what causes these? Increasing fining time/pressure and/or increasing polishing time/pressure did nothing. Would this be an acceptable lens?
And another concern is that we still have some fining marks (scratches) on the very outer perimeter of the lens, about 1/6th of an inch in, visible when checking with our Bulbtronic. These scratches only went away when we increased our polishing time to 10 minutes. However, 10 minutes polishing time is hardly acceptable so we would like to reduce that.
And finally, if you look closely at the reflection on the lens, you can make out the outline of a fining pad. Are we at too high of a pressure or are there any other reasons to see something like this?
If you would like any additional information, please let me know and I will post it as soon as I can.
Thank you for your time and any assistance would be greatly appreciated!
Bookmarks