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TIL a finisher with 20 years on me said my float work was too wet, and it cut my callbacks in half
Was working a 2,400 sq ft garage slab outside of Boise back in March. I had been finishing the same way for 6 years, bull float, mag, then steel trowel, and I always thought I was doing fine. An older guy on the crew watched me for about 10 minutes and said flat out, you are floating too wet, you are just pushing cream around and it will craze on you. I brushed it off at first because who likes hearing that. But I had been getting these hairline cracks and dusty spots on a lot of my work and could not figure out why.
So I started waiting longer before I hit it with the float, let it set up more, and kept my trowel angles flatter on the final passes. Night and day difference. My edges stopped tearing and the finish came out way more consistent. Had 4 callbacks the year before on finish issues, and after switching that up I have had zero since June.
Curious what others do. Do you guys go by feel, or do you watch the bleed water and the sheen before you start floating? I feel like nobody ever taught me this, I just copied what the guy before me did.
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