Defoamer

Air trapped in concrete will make foamy concrete that feels light, insubstantial, and weak. Using a good defoamer in your concrete countertop mix will help improve the density and strength of the concrete.

How Defoamers Work:

Defoamers don't make air that's trapped in the concrete magically go away. They work by destabilizing foam generated in the concrete that forms during mixing. Common ingredients that can create foam are polymers, superplasticizers, and pigments.

Defoamers help prevent the foam from forming in the first place, so air that gets whipped into the concrete during mixing won't form foam.

Foam (think of shaving cream or shampoo) is just lots of tiny air bubbles, and tiny air bubbles get stuck on sand grains, fibers and inside thick, stiff concrete. Defoamers pop those tiny bubbles to form larger ones.

Larger air bubbles have a better chance of escaping because they can force their way up and out of a mix, but that mix must allow those bubbles to rise and escape on their own.

Dosage Rate of Integrity UltraDense defoamer:

• Dose as a percentage of total cementitious weight (cement + pozzolan)
• Suggested starting dose: 0.1%
• Dosage range: 0.05% to 0.2%
• Overdosing can actually increase air content, so more is not better.

Size

• 333g