Hermetic sealing of insulation joints of concrete and asphalt coverings of airdromes and highways.
Application areas for TECHNONICOL polymer-bitumen sealant #42:
– Hermetic sealing of insulation joints of concrete and asphalt coverings of airdromes and highways;
– Sealing of cracks of concrete and asphalt coverings of airdromes and highways
Description of material
The polymer-bitumen sealant is a hot-applied material consisting of oil bitmen, modified by synthetic rubber and technological additives. The material has a wide range of operating temperatures, high elasticity and dimensional stability. It is manufactured in three grades for use in various climatic zones: BP-G25, BP-G35, BP-G50.
Method of application
Before application the sealant is warmed up to a working temperature of 160-190°C in boiler units designed for melting heating with constant mixing. The sealant surface coverage depends on a kind of performed work.
Store in a dry place protected against sunlight at a temperature between –20°C and +30°C. Guaranteed storage period — 12 months.
Wide range of working temperatures
High elasticity Absence of shrinkage
Quick selection of properties Longevity of covering
Types of material
Basic physical and mechanical properties
|Softening temperature, °C, not less than|| ||105 ||100 ||95 |
|Bend point on R=20 mm beam, °C, no more than|| ||-25 ||-35 ||-50 |
|Specific elongation when broken, % at –20°C, not less than|| ||100 ||100 ||100 |
|Adhesiveness temperature, °C, not less than|| ||55 ||50 ||50 |
|Robustness, number of cycles, not less than|| ||35 000 ||35 000 ||35 000 |
|Water absorption, %, no more than|| ||0,2 ||0,2 ||0,2 |
|Aging under UV-radiation over the course of 1,000 h, %, no more than|| ||15 ||15 ||15 |