Castable refractory cement 3 lb is rated
Rated 1 out of
too much aggregate, poor instructions.
I bought two tubs of this refractory cement to fuse firebricks together and I was very disappointed. The instructions called for 143ml (oddly specific) for every 3lb tub.
After adding the water I noticed the cement was still dry. So I added a little more water and it become too much. So I added the other tub and tried to dial in the appropriate ratio myself.
Only a few bricks managed to fuse. The majority just fell apart. The cement wouldn't stick to a brick at all. The amount of aggregate was way too thick as well.
Needless to say I was disappointed. Do not use this stuff to mortar bricks together. The aggregate is too big and it has really poor slump.
Date published: 2020-05-17