Page 282 - Construction Waterproofing Handbook

SEALANTS 5.41

FIGURE 5.37 Packing tools and accessories. (Courtesy of Albion
Engineering Co.)

TABLE 5.11 Approximate Coverage Rates for Sealant Materials
Depth Width (in)
(in) 1 ⁄ 1 ⁄ 1 ⁄ 3 ⁄ 1 ⁄ 5 ⁄ 3 ⁄ 1
16 8 4 8 2 8 4
1 16 4828 2464 1232 821 616 493 411 307
1
8 1232 616 411 307 246 205 154
1 4 307 205 154 123 103 77
3
8 137 103 82 68 51
1 2 77 62 51 39
5
8 49 41 31
3 4 Lineal feet of joint coverage per gallon of material 34 26
1 19

material must be mixed in provided quantities. Never should less than the manufacturer’s
prepackaged amounts be used. Table 5.11 summarizes material coverage per gallon of material.
The use of proper mixing paddles and mixing for adequate lengths of time are impor-
tant. Materials that have passed their shelf life, which is printed or coded on material con-
tainers, should never be used.
Proper application tools, including sealant application guns that are available in bulk,
cartridge, or air-powered types, are necessary, Figs. 5.38 and 5.39. The cartridge is used
for one-component materials supplied in tube form. Bulk guns use two-component
sealants. These guns should be filled carefully with the mixed material; air should not be
allowed to mix with sealant, or gassing of materials will occur.
Nozzle selection and use is also important. Use a metal nozzle with a 45° angle, and cut
the plastic nozzles of tube containers to the same 45° angle. Joints might be overfilled or