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Tried a 4 foot magnesium bull float on a big garage slab after using a 3 foot aluminum one for years.
The extra foot of reach meant I could stay on the forms longer and the weight helped close the surface way better. I'm thinking of switching for all my big pours now, but my partner says the aluminum is faster to handle. Which one do you guys prefer for a 40 by 60 slab?
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christopher_singh923mo ago
Magnesium is lighter than aluminum, actually.
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evayoung3mo ago
Yeah it's wild how many common things are lighter than they seem. Like I always thought my old laptop was heavy until I picked up a new one lol.
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the_jesse13d ago
Hang on, are you sure about that? I always thought magnesium was actually lighter than aluminum by a decent margin. Like, magnesium has a density around 1.74 g/cm³ while aluminum is closer to 2.70 g/cm³. So magnesium is definitely lighter by weight for the same volume. That's why they use it in some high-end car parts and laptops, because it's strong but lighter than aluminum.
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