hydrofluoric acid,fl uorine chemicals, and strong alkalies, such as sodium
and potassium hydroxide, 100% carbon fillers are required.
Polyester resins area vailable in an umber of types, the most popular of
whichare the following:
1. Isophthalic
2. Chlorendic acid
3. BisphenolAf umarate
The earliest mortars and grouts were based on the isophthalic polyester
resin. Thisr esin performed well in many oxidizingm ediums. It did,
however, presentc ertain physical,t hermal,a nd chemicalr esistance
limitations.
Formulations utilizing the chlorendic and bisphenol Af umarate resins
offered improved chemical resistance, highert hermal capabilities, and
improved ductility with less shrinkage. The bisphenolAfumarate resins
offereds ignificantlyi mprovedr esistance to alkalies. They provided
essentially equivalent resistance to oxidizing mediums.
Allp olyester resins ystems havep rovidedo utstanding chemical
resistance to am ultitude of applications in the pulp and paper,t extile,
steel and metalworking, pharmaceutical, and chemical process industries.
Typical applications have been brick and tile floors, brick and tile lining in
bleach towers, scrubbers, pickling and plating,a nd waste-holdinga nd
treating tanks. All the resins provide formulation flexibility to accommodate carbon and silica as fillers. Carbon- and silica-filled mortars and grouts
are easilym ixed andh andled for the various types of installations. They
are easily pigmented for aesthetic considerations. The essentially neutral
curing systems provide compatibility for applicationt oamultitude of
substrates, i.e., concrete, steel,F RPs, etc. Properly formulated polyester
resin systems provide installation flexibility to aw ide range of temperatures, humidities, and contaminants encountered on mostc onstruction
sites. Theya re one of the mostf orgiving of all of the resin systems.
Polyester mortars and grouts have certain limitations that are inherent in
all polyester formulations. They are as follows:
1. Strong aromatic odor that can be offensive for certain indoor and
confined space applications
2. Shelf life limitations that can be controlled by low-temperature
storage (below 608 F[ 158 C]) of the resin component
Table 1.6 provides comparative chemical resistance for the previously
enumerated polyester resins. The physical properties of the respective
systemsare of amagnitude that for most mortarand grout, tile, and masonry
applications, they can be considered essentially equal.
Chemical Resistant Mortars, Grouts, and Monolithic Surfacings
11
CAT8247—CHAPTER 1—6/10/2006—11:59—SRIDHAR—XML MODEL B–pp. 1–42
and potassium hydroxide, 100% carbon fillers are required.
Polyester resins area vailable in an umber of types, the most popular of
whichare the following:
1. Isophthalic
2. Chlorendic acid
3. BisphenolAf umarate
The earliest mortars and grouts were based on the isophthalic polyester
resin. Thisr esin performed well in many oxidizingm ediums. It did,
however, presentc ertain physical,t hermal,a nd chemicalr esistance
limitations.
Formulations utilizing the chlorendic and bisphenol Af umarate resins
offered improved chemical resistance, highert hermal capabilities, and
improved ductility with less shrinkage. The bisphenolAfumarate resins
offereds ignificantlyi mprovedr esistance to alkalies. They provided
essentially equivalent resistance to oxidizing mediums.
Allp olyester resins ystems havep rovidedo utstanding chemical
resistance to am ultitude of applications in the pulp and paper,t extile,
steel and metalworking, pharmaceutical, and chemical process industries.
Typical applications have been brick and tile floors, brick and tile lining in
bleach towers, scrubbers, pickling and plating,a nd waste-holdinga nd
treating tanks. All the resins provide formulation flexibility to accommodate carbon and silica as fillers. Carbon- and silica-filled mortars and grouts
are easilym ixed andh andled for the various types of installations. They
are easily pigmented for aesthetic considerations. The essentially neutral
curing systems provide compatibility for applicationt oamultitude of
substrates, i.e., concrete, steel,F RPs, etc. Properly formulated polyester
resin systems provide installation flexibility to aw ide range of temperatures, humidities, and contaminants encountered on mostc onstruction
sites. Theya re one of the mostf orgiving of all of the resin systems.
Polyester mortars and grouts have certain limitations that are inherent in
all polyester formulations. They are as follows:
1. Strong aromatic odor that can be offensive for certain indoor and
confined space applications
2. Shelf life limitations that can be controlled by low-temperature
storage (below 608 F[ 158 C]) of the resin component
Table 1.6 provides comparative chemical resistance for the previously
enumerated polyester resins. The physical properties of the respective
systemsare of amagnitude that for most mortarand grout, tile, and masonry
applications, they can be considered essentially equal.
Chemical Resistant Mortars, Grouts, and Monolithic Surfacings
11
CAT8247—CHAPTER 1—6/10/2006—11:59—SRIDHAR—XML MODEL B–pp. 1–42