Since no single clear sealer is a p...

Since no single clear sealer is a panacea, specifiers of architectural conglomerated should be aware of trade-offs
Although architectural precast compound generally offers excellent resistance to weathering, it is not immune to attacks by the agency of dirt, salts, airborne industrial chemicals and a landlord of other contaminants.
In about cases, these agents cause cake surfaces to stain, soil or deteriorate. In more austere instances, they may also attack poniard reinforcing bars, thus compromising a panel's structural integrity.
In addition, wind, rain, humidity and other environmental