Bon Tool Anti-Crack Concrete Fibers

I had no problem with clumping like mentioned by people who probably didn’t mix this product properly. My slab came out amazing I see no fibres sticking through and I used double the recommended weight. Highly recommend this product for any slab pours/caping.

Used to reinforce the new concrete on my fountain basin and they were miraculous. No cracks whatsoever.A bit pricey but they do the trick.

This product significantly reduced plastic cracking on stucco base coat. It is difficult to get it mixed properly. I had the best luck pre-mixing it in a jug of water. It expands significantly when added to water. I measured it using a gram scale for individual bags of cement - 8.4gm per 80lb bag.

I use the fibers to add a dimensional strength to my outdoor concrete countertop in addition to a wire mesh. The fibers separated easy and mixed very well. I used an electric drum mixer. However I did not follow the suggested usage of one bag per cubic yard but instead used the entire bag content for 7 cubic feet of concrete. None of the fibers are sticking out.Only time can tell if the fibers do the job but for now the entire slab dried and cured without cracks.

I purchased this product 32-500 and also a bag of the 32-504. The 32-504 clumped and was a pain to work with. This product, the 32-500 distributed much better but still required effort to get it well distributed throughout the dry mix before adding liquid. I would buy this product 32-500 again but not the 32-504. Product arrived fats with no issues.