
Hydroblock
HYDROBLOCK® PVC geomembrane — signal layer
Two-layer PVC sheet with a contrasting underside. Damage flakes the top colour away and reads dark, so punctures are found by eye.
DetailsGeoguard
HDPE and LLDPE barrier sheet, extruded and calendered. Stops liquid and gas movement in containment work.
Polyethylene compounded with stabilisers and pigments, extruded and formed on a calender line. Supplied in high-density (HDPE) and linear low-density (LLDPE) grades — HDPE where chemical resistance and stiffness matter, LLDPE where the liner has to follow settlement.
Used as a barrier against both liquid and gas migration, which is why it is the default sheet in waste containment.
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Hydroblock
Two-layer PVC sheet with a contrasting underside. Damage flakes the top colour away and reads dark, so punctures are found by eye.
DetailsGeoguard
Studded sheet — protrusions along the roll key into wet concrete so membrane and structure act as one.
DetailsGeoguard
Black homogeneous HDPE, flat or textured, optionally with a light signal layer so damage reads as a contrast.
Details