[Shop-talk] Garage Floor Paint

[David Scheidt]

> On Jan 19, 2023, at 11:33, Jeff Scarbrough <fishplate at gmail.com> wrote:
> 
> Hi all...  I've decided to coat my garage floor with something - the
> bare concrete just sheds too much dust to consider the garage "clean".
> Every time I sweep, it looks like Pigpen from the Peanuts comic

Dusty concrete is usually the sign of poor quality, and results from a bad mix and bad troweling.  If I remember the chemistry, there isn’t enough silicate for the portland cement to react with, and form the calcium silicate that makes the concrete hard.  There are water based silicate densifiers, which can improve the dusting.  Application is cleanly the floor, put the stuff on, let dry.  Depending on the product (and temperature, etc), the floor can be returned to use in a few hours to overnight (moat allow foot traffic as soon as it’s dry) they’re not terribly expensive, so I would start there.  You can put another coating over most of them, I believe. 

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