No matter how carefully I clean my wind buffer, there are always streaks. Is windex not good for acrylic? ANy suggestions on how to maintain a streak free buffer?

 

Use Plexus.

 

I think Meguiar's also makes a "Clear Plastic Detailer" which I bet is not too bad. Personally, I use Plexus.

 

I need to take some pics - I JUST polished out one headlight starting with Optimum Hyper on a 4" yellow SFX1 pad (PC@6, about 4-5x), then Meg's #10 (Clear Plastic Cleaner) on a 4" white SFX2 and Meg's #17 (Clear Plastic Polish) on a 4" blue SFX3...

Amazing difference, which I think can mostly be attributed to the Meg's stuff. I think it had more "filling" plastics as the Optimum didn't make a huge difference, but I'm sure helped to smooth out the plastic a little bit.

I do like the Meguiar's #10/#17 combo. They make a #18, which I think is more like Plexus (haven't used #18, ran out of Plexus a little while ago... Gotta get more).

BTW - don't use anything with ammonia (or "Ammonia-D") on plastic. Not good for the plastic at all. Use a dedicated plastic or vinyl cleaner.