USG Casting Fireplace Surrounds - Manual (Page 13)

Using gypsum cements to create fireplace surrounds has many
benefits, because they:
– Have zero flame spread and zero smoke developed when tested
in accordance with ASTM E84 – meet the requirements (uncoated)
of the building code for Class A surfacing material
– Provide excellent detail reproduction
– Allow quick demolding, reducing the total number of molds
required for high production
– Can be decorated to resemble many different raw materials,
such as natural stone
The preferred products for fireplace ornamentation are H YDROCAL FGR, E NDURACAST , and other custom-formulated
alpha gypsum cements manufactured by USG. H YDROCAL FGR and E NDURACAS t gypsum cements are formulated
for hand layup and spray processes. These are the only products USG supports for fireplace surround production.
Your USG representative can assist you with product selection.
Raw Materials
13 Casting Fireplace Surrounds