MasterProtect H 321 - A water based, silane/siloxane clear water repellent for masonry surfaces
What is MasterProtect H 321?
MasterProtect H 321 is a single component,
water-based silane/siloxane blend.
MasterProtect H 321 penetrates deep into the
substrate where it reacts chemically. The reaction
starts immediately as soon as the active
ingredients get in contact with the substrate.
The reaction time depends on temperature,
humidity and nature of the substrate. The treated
surface does bead water shortly after application of
MasterProtect H 321.
What is MasterProtect H 321 used for?
MasterProtect H 321 is a clear penetrating
silane/siloxane based water repellent for use on
porous and semi-porous substrates such as clay
and calcium silicate brick, honed limestone /
sandstone and sand-cement render.
What are the benefits of MasterProtect H 321?Aesthetics
Improves the aesthetics by reducing efflorescence,
Surface appearance remains unchanged as
MasterProtect H 321 penetrates into the
Long term protection due to deep penetration.
Ultraviolet and acid rain resistant.
No influence on moisture vapour permeability.Cost effective
One application only.Easy to apply
Ready to use, no dilution on site guarantees
Application equipment and spillages easily cleaned
with soapy water.Environmentally friendly
Reduces volatile organic emissions into the
No dangerous fumes.