I had a similar issue with trying to use Spraymax to fill the inserts. I bought a small can of two part auto clear from Amazon for about $40 and no more crazy bubbles. The spraymax is great to clear the entire playfield, but didn’t work to fill the inserts.

Bye the way if you put the can in the fridge after it’s activated it will be good for 7 days.

Mark I know it’s frustrating, but you can do it. Keep putting clear into the cracks using multiple coats until you get it. Are you using 2pac or something else? I had problems with bubbles when using Spraymax to fill cracks and level inserts. I had much better luck with a $40 can of auto clear. No bubbles or other issues with that. The Spraymax works great for an entire coat and I’ve had great results with it.

Don’t be discouraged I’ve filled insert 5 times before I was happy. You’ll get this.

I talked to a guy at SprayMax and he said the can would be good for seven days after activation if kept in the fridge. The longest I tried was six.

Looks good.

Looks like glass. Great job.

Looks great