Quote Originally Posted by redbarron55 View Post
Try Acrifix, a UV cured acrylic product.
A drop in the hole will seal it and also this stuff will fix the crack as well.
Google it.
I fixed several cracks in my motorglider canopy with it. Not invisible, but acceptable.
I bought mine from Knauff and Grove in Pennsylvania. About $50.00 a tube, but worth the money.
Carefully grind out v grooves on one side and fill with acrifix on one side.
Then grind the vee groove on the other side slightly into the glued (and cured) side to help eliminate the crack line.
After cure (in direct sunlight) I scraped the slightly raised plastic glue line with a single edge razor and then sand with increasing number grit until ready to polish out with fine compound.
Google other guys processes as well to make up yout mind how to proceed.

JDB
I need to fill a number of quarter inch holes in a sheet of plexiglass, what is the best way to do this? I've done some research and found Weld-on 16 acrylic cement might work but I am wondering if the holes would be too big for that. Would polyurethane do the job?

Thanks for the feedback!