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#164®
HOT-APPLIED, POLYMERIC SEALANT
DESCRIPTION
#164 Polymeric Sealant is a time-proven, hot-applied polymeric sealant which combines a tenacious adhesive power with high resiliency. #164 provides a positive seal during expansion and contraction of the joint and it will not lose bond in cold weather or flow in hot weather.
USES
#164 is ideal for the large-scale sealing of transverse and longitudinal joints in Portland cement concrete pavements and joints in bridges, airport runways, taxiways, etc. It is also used for the maintenance sealing of cracks and joints in concrete and asphalt concrete pavements, parking lots, etc.
FEATURES AND BENEFITS
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SPECIFICATIONS
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PACKAGING
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COVERAGE
69.8 lbs./cu. ft. (1,120 kg/cu. m). A 1/2″ x 1/2″ (12.7mm x 12.7mm) joint will require 12.2 lbs./100 linear feet (18.2 kg/100m).
Application Tools
 Air Compressor |  Melter-Applicator with Applicator Wand |  Router |
APPLICATION
Melting…#164 must be melted in a double-boiler, oil-jacketed melter-applicator equipped with an agitator and separate temperature controls for both the oil bath and melting vat. Add small quantities of #164 with plastic liner to the melter and, while under continuous agitation, add additional material as needed. Material may be added to the melter as the sealant is withdrawn during the sealing operation.
CONTROL MATERIAL TEMPERATURE AT 370ºF (188ºC). NEVER EXCEED 390ºF (199ºC). RECOMMENDED POURING TEMPERATURE IS 370ºF (188ºC).
Surface and Joint Preparation…The joints and cracks to be sealed must be clean and dry. Dust, dirt and laitance should be removed prior to application. Proper routing should be slightly larger than existing crack/joint to ensure proper adhesion to sidewalls.
Asphalt Pavement and Maintenance Sealing…For ideal sealing, with maximum effectiveness, it is suggested that cracks or joints should be routed out to provide a sealant reservoir 1/2″ (12.7mm) wide with a minimum depth of 1/2″ (12.7mm). This provides for a 1:1 width-to-depth ratio. For joints 1″ (25.4mm) wide, the suggested depth is 1/2″ (12.7mm) minimum. To control and maintain the suggested joint depth and sealant usage, CERA-ROD™ Heat-Resistant Backer Rod from W. R. MEADOWS may be installed in the joint opening.
New Concrete Pavement Sealing… Typical joint configuration should be 3/8″ (9.54mm) wide with a minimum 1/2″ (12.7mm) depth for an approximate 1:1 width-to-depth ratio. However, designated joint width and depth is determined by the appropriate highway or pavement authority. CERA-ROD Heat-Resistant Backer Rod from W. R. MEADOWS may be installed in the joint opening to control depth and sealant usage.
Application Method…Seal with #164 when the air and pavement temperatures are 40ºF (4ºC) or higher. #164 should be applied into the crack/joint, slightly overfilling. Once applied, a follow-up should be done with a soft rubber, U-shaped squeegee to form a wipe zone of approximately 3-4 inches (76.2-101.6mm) wide along the crack/joint and flush with the highway or pavement surface. At the end of each day’s sealing operation, all material remaining in the lines should be drawn off. Small quantities of unused material remaining in the melter may be re-melted and used the following day.
PRECAUTIONS
DO NOT DILUTE. #164 is not resistant to jet fuels and is not recommended for swimming pools or joints subjected to hydrostatic pressure. #164 must not be heated above the recommended 390ºF (199ºC) or the rubber polymers will decompose, resulting in unsatisfactory performance. Refer to Material Safety Data Sheet for complete health and safety Information.
This material last updated February, 2005
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