Mastic is a very sticky adhesive. It comes premixed and is
readily available at most home improvement stores. It usually
comes in a small bucket of varying sizes with a snap top lid. It has a very
long shelf life when kept closed.
Read the manufactures
instructions! (you'll hear me say this a lot.) Each
brand has it's own recommendations. Look for Type I or better
for maximum water resistance.
Even when using Type I, mastic is for
INDOOR applications only and where it
will not be exposed to moisture.
Typically white or light in color, the color
can be altered using liquid pigments. This is especially
helpful when you are using on a project that you don't plan on
grout, such as Italian Smalti.
Works great on
vertical surfaces where sliding can be an issue.
It's thick texture allows you to build-up for
use with materials of different thicknesses.
May be use to adhere to wood, drywall,
Mastic is NOT
intended for use on floors. It will become brittle and break down
For art projects use a palette knife to spread
in small areas.