And the result of the experiment is:
- Either product worked
Either
the finest white 3M-Finessit (no wax or silicones)
Or
Mother's Power Plastic 4Lights
removed fine scratching from the LEXAN windshield today.
and with a little patience restored a cloudy area caused by canopy cover rub.
Observations:
The Mothers comes with 3 finer and finer grades of wet and dry papers - FORGET THEM. Disaster on the scrap I practices on The plastic overheated and got worse - not better.
Use the Mother's sponge polisher (the blue thing) in a drill chuck.
DO NOT press hard. Lots of very light passes or you will get swirl marks in the Lexan. Just be patient, keep it light and keep it moving.
DO NOT allow the job to get hot. The compounds are pretty liquid as it is - keep lots of plain water on hand to rinse and keep the job cool.
Patience.
--
It's almost impossible to photograph the before and after but I removed:
- "dullness" caused by a canopy cover rubbing in the wind and restored to full shine
- fine scratches caused by a headset headband that had rubbed the plastic
- 4 years of that finer scratching that develop - no matter how careful you are.
In fact it did such a good job on the localized bits I repaired today - I'm now going to have to give the whole windshield a pass to get rid of the rest of the glare making scratches.