🧱 AMACO Insulating FireBrick, 9x4.5x2.5 inches Review

I have ordered 6 of these bricks for a foundry I am building. They came intact (a little off the corners) and worked great. I used a handsaw to cut them and only used 4 out of 6 for what I needed. With some Satanite refractory solutions, they endured multiple sessions, each lasting at least 4 hours. I raise the temperature above 2200 degrees and even melted steel once (2700 degrees). I'm happy with them and will eventually build a forge that uses more of these stones.

These refractory bricks are a treat for my little silver soldering shop. They are soft enough to fit short tailor needles with needle nose pliers and hold solder pins. They are large enough to solder a large groove box, broach, or small brass frame. They take all the heat my jewelry burner needs. Now I have a few and I will be getting more to make a burnout oven. They are a great help for my hobbies. Thank you.

They insulate well and are easy to cut with an old carpenter's saw. They're pretty soft, softer than some of the other insulating refractory bricks I got a few years ago. This is not a criticism, just a comment. The bad rating is not due to the product, he would have given it a 5. I downgraded it due to the Revain packaging. The stones were packed in a box with other items and air-filled bags, but there was enough free space for the stones to move and bump into each other in the box, and the…