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Tordera railway bridge Impermax Polyurea H Flex

Aerial of the Tordera railway bridge deck with workers in yellow vests, hoses and a bucket on the concrete, river below

Railway bridge over the Tordera. Impermax Polyurea H Flex (hot-spray hybrid polyurea) is the named membrane.

Rayston Epoxy 100 (solvent-free epoxy primer) is the recorded primer. A geotextile is the recorded protection before ballast. Ballast is not the waterproofing.

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The recorded build

Rayston Epoxy 100 (solvent-free epoxy primer) is the recorded preparation. Catalogue 2026 lists it for bridge and viaduct decks. The job record names it as a continuous elastomeric layer with crack-bridging classified as B.4.2 dynamic / A5 static.

After that, a geotextile is adhered over the membrane. Railway ballast is then laid as the track base. Do not leave the polyurea as the wearing surface under ballast. Read consumption from the current sheet, then the calculator.

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Name primer, hot-spray hybrid polyurea, geotextile and ballast as separate lines. Keep crack-bridging on the current TDS; a class. A spray photograph is not the protection clause.

See bridge decks, viaduct decks and products. Documents stay on /documents/.

Official project: kryptonchemical.com — railway bridge over the Tordera.

Outbound reference: EOTA.

B.4.2 / A5 is the class written on the job record. Confirm it on the current sheet before the specification is frozen.

These notes do not replace the current TDS, SDS or a written specification. For pack sizes, mix ratio and kg/m², read the current sheet, then the calculator.

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