So, you’re comfortable filling floor joints on the average job. It’s easy. Just get some cartridges and start pumping. But now you’re looking at a larger project and there are far more joints to be filled than your average job. You’re adding up the cost of the cartridges you’ll need on this one and it’s a big number. Plus, you’ll need more people to install it 20 ounces at a time.

You know that these materials are available in bulk units. But you’d need a pump and you’re not sure you’d have another need to use it again any time soon. Seems like a like a bad investment for just one job. Let’s take a look at the math for a clearer picture.

Example: Assume you have a 6” thick slab and have 7500lf of 1/8” saw cut joints. The depth of the cut is 25% or 1.5”. The average coverage for this joint is