Bitumen-polymer hermetic №42 (BP)

Bitumen-polymer hermetic №42 (BP)

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Bitumen-polymer sealant Technonikol No. 42 is a one-component material consisting of oil bitumen, modified with rubber and technological additives. Available in three versions, depending on climatic zones: BP-G25, BP-G35, BP-G50. A sealant is used in road construction to seal expansion joints in highways, runways of aerodromes and highways.

The variants of sealant production differ in the temperature of flexibility on the bar, in which there are no cracks in the sealant (that is, the degree of modification), BP-G25 is suitable for warm climatic zones where the winter temperature is not lower than -20 degrees, BP-G35 is suitable for central Russia , where the minimum winter temperature is at least -30 degrees. BP-G50 was developed specifically for the northern regions of the country, this modification of the sealant withstands negative temperatures down to -50 degrees.

The name of indicators Unit. measurements Value Test method
BP-G25 BP-G35 BP-G50
Softening temperature, not lower than 0С 90 90 90
Flexibility on the rod Æ 20 mm, not higher 0С -25 -35 -50
Relative elongation at the moment of rupture, not less than at -20 ° C % 75 75 75 -||-
Temperature of stickiness, not less than 0С 50 50 50 -||-
Stamina, number of cycles, no less than 30000 30000 30000 -||-
Water absorption, not more than % 0,2 0,2 0,2 -||-
Change in properties under UV irradiation, not more than ч 1000 1000 1000 -||-

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