EXPERT ADVICE
Crack Filling and Crack Sealing
Continued from page 38
Major Types of Crack Sealers & Fillers
Generically describing the products, two major classes of prod-
ucts are used; hot pour and cold pour. As the names imply,
hot pour crack fillers need heating for pourable consistency
Characteristics
(>350 F), whereas cold pours are ready to use as supplied,
at ambient conditions. Hot pour crack fillers command the
lion’s share by virtue of their superior performance in terms
of their overall longevity when compared to cold pour crack
fillers. Extensive field studies have established that, on average
hot pours outlast cold pours by 2 to 1. The following tabula-
tion summarizes some major aspects.
Hot Pour
Cold Pour
1. Longevity, years:
Warm Climates 4.3 2.2
Cold Climates 2.3 >1
2. Initial Cost Less More
3. Coverage rate Somewhat less More
4. Ease of Application Hard Easy
5. Supplied as Blocks Liquid
6. Hazards, in application Yes No
a. Safety Hazard associated None
b. Heating needed Yes No
7. Preparation time Considerable None
8. Trafficability, cure Fast Considerably low
9. Major areas of use Roads, highways Home driveways, parking lots
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1.800.210.5923