Non-HDL cholesterol tells you all the bad cholesterol circulating in your blood - not just your LDL cholesterol. It is helpful to know your non-HDL cholesterol because your level of non-HDL may predict your risk of cardiovascular disease even better than your LDL (bad) cholesterol.
Moisture and Alkalinity. Too much moisture in new concrete can cause paint to bubble. It usually takes at least 30 days for moisture to dissipate enough for paint to adhere. You can test for moisture by taping a piece of foil to the surface, sealing all the edges with tape, and checking for condensation after 24 hours. If there is no condensation, the concrete is dry enough for painting. High alkaline levels also can stop paint from sticking to the concrete. It can take anywhere from 30 to 90 days for alkaline levels to drop enough for painting. Test the pH, and look for levels 9.0 and 10.0.
Reader Question: How long should I wait in between colors on a canvas? Should the first color completely dry before I add the second? The length of time you should wait between adding layers, or colors, onto your canvas depends on the style you are working in, and what you are trying to achieve with your painting. With acrylics, you can add wet paint over dry paint, or you can add wet paint onto wet paint. The effects will be very different, so this is why it depends on what you are trying to achieve - that is, what you want your painting to look like.