I have used both Raka slow & US Composit slow epoxy and both seemed about the same to me. The Raka was used on a small yak in a room I could heat to 80 degrees and got my tack free set in about a day. The US Composit would set tack free in a 50 degree garage in 3 days. I had a tent system set over the yak to set in the sun to speed up the set up time but didn’t get much sun so I was compelled to use the tent mostly to keep the dust off.

I was going to use the Raka 5 oz glass but chickened out and used the 6 oz that I had used before on my first yak.

John