Originally Posted by scrible
It took me about an hour. I was extremely careful to follow the directions and take my time, as I didn't want to pay an outrageous price for new lenses! I cannot stress enough how easy it would be to seriously damage your lenses if you do not read the instructions with the kit and take your time. But don't let that scare you, the kit is very easy.
When you get the the polishing process at the end it gets a bit messy though! The polishing pad with the drill throws the 3M rubbing compound all over the place so wear some old clothes.
I've used the 3M kit to repair 5 sets of headlights (different cars) and have to say:
it's so easy a caveman could do it. (GOD, I hate those commercials).
Following the directions, and WATCHING THE VIDEO on the 3M website or youtube makes it much simpler and answers questions before you ask them. All of my results have been fantastic, and I went so far as to order the 25 or 50 packs of the discs. I figure at $30 a set for folks I like and $50 for those I am only willing to take money from will pay for an interesting mod or two.
In the instructions they mention clearing the paper while sanding with the 500 and 800. Do this often-it prevents buildup of the plastic dust and that stuff will melt and burn the lens.
Go slow-it's not a race. Use alot of masking tape. 3 layers minimum. I used a plastic spray bottle to keep the 3000 Trizcut pad lubed-very important.
Use the SMALLEST drill you can find. I had a 1/2" DeWalt XL and it's very hard to control something that heavy. And awkward. I used a small Souix 45 degree 1500 RPM plug-in that makes life much better.
I give this kit a 5 star and a thumbs-up.