specs

Section 07920
Page 2
2.02 MATERIALS
A. Sealants
1. Type 1 – Two part, self-leveling, polyurethane sealant; FS TT-S-00227E,
Class A, standard neutral color to be approved by Architect.
2. Type 2 - One-part, non-sag, low-modulus, polyurethane joint sealant; FS TT-S-
00227E, Class A, Type II, color as selected by the Architect.
3. Type 3 – One part, neutral curing, silicone sealant; FS TT-S-00230C, FS TT-S-
001543A, Class A, Use T, color to match floor.
4. Type 4 – One part, non sag, neutral curing, silicone sealant, FS TT-S-001543A,
FS TT-S-00230C, Class A.
5. Acoustical Sealant: equivalent to USG acoustical sealant.
6. Sealants within the building envelope shall comply with emission limits outlined in
Section 01352 IAQ management.
Firm Type 1 Type 2 Type 3 Type 4
Dow Corning N/A N/A 790 791
Pecora NR-200 Dynatrol 1-XL N/A 864 NST
or DynaTred
Sika Sikaflex-2c SL Sikaflex-15 LM N/A N/A
Sonneborn SL2 NP1 N/A N/A
Tremco THC-900 Spectrem 2 Spectrem 1
or 901 Dymeric
Sherwin Williams Stampede 2SL Stampede 1 White Lightning Silicone Ultra
SW Shermax
B. Caulking Compound (Interior use)
1. One part acrylic latex caulk capable of being painted with latex or oil base paints; ASTM C834-95.
Provide between plumbing fixtures and adjacent surfaces. Color of caulk for this application is to be
white.
2. Caulking within the building envelope shall comply with emission limits outlined in Section 01352
IAQ management.
C. Related Materials
1. Primer: As required by sealant manufacturer for each type of working surface,
having been tested for staining and durability on samples of actual surfaces to be
sealed.
2. Vertical Joint Backing: Closed-cell polyethylene joint backer rod as required by
sealant manufacturer in writing to Architect. Select size that will cause an
approximate 30% compression in joint.
3. Horizontal Joint Backing: Round solid neoprene or butyl rubber, Shore A
hardness 70.
4. Expansion Joint Filler: Recompressed bitumen impregnated foam sealant; size
of uncompressed material to be 3 times joint width in which to be used.
5. Bond Breakers: Polyethylene tape, pressure sensitive adhesive.
6. Solvents, Cleaning Agents, and other Accessory Materials: Recommended by
sealant manufacturer in writing to Architect.
PART 3 - EXECUTION
3.01 PRECAUTIONS
A. Fresh concrete shall be cured 28 days before sealants are applied.
B. Application of sealants shall be performed when the substrate temperature is 40 o F and rising.
C. Do sealing on the exterior before applying dampproofing.
NAPA CENTURY CENTER XD 12
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