Building temporary flood barriers with materials available on site, stabilizing a slope or riverbank after flood damage, or erecting a provisional retaining wall without specialized machinery or concrete block transportation, requires a resistant geotextile geobag that is filled on-site with local soil, sand, or gravel. This geobag—also called a geotextile sandbag, geobag, or geotextile sand sack—is manufactured by MOLTEXO with 400 g/m² geotextile in black, dimensions 40x80 cm, a package of 50 units, designed for riverbank protection, erosion control, emergency flood barriers, and slope stabilization in civil and hydraulic engineering works.

Key Benefits

Filled with local material without block transport: It is filled with soil, sand, or gravel available directly at the construction site, eliminating transport logistics and the cost of concrete blocks or gabions, a decisive advantage in remote areas or emergencies where heavy equipment access is unavailable.
Controlled permeability with fine particle retention: The geotextile allows water to drain freely, reducing the hydrostatic pressure of saturated fill, while retaining the fine particles of the internal material, a critical condition for walls exposed to continuous rain without pressure accumulation.
UV resistance for extended use: The 400 g/m² geotextile incorporates calibrated UV-HALS additives to withstand direct Caribbean sun exposure for seasons or years, a condition for extensive temporary use or partially exposed walls.
Adaptation to irregular terrain: The bag conforms to curves, unevenness, and non-flat ground shapes, a differentiating condition compared to rigid blocks that require a perfectly level base and precise maneuvering.
Stackable in stable block-type walls: Geobags are stacked in alternate courses (staggered joints like masonry) creating stable walls several meters high, a condition for permanent use on slopes and flood barriers.

Applications and Typical Uses

Emergency barriers against floods and river surges in urban and agricultural areas.
Protection of riverbanks, canal edges, and coastal areas against erosion by water flow.
Construction of temporary or permanent retaining walls in road and landscaping projects.
Reinforcement of coasts, beaches, and protection of structures against moderate waves or static flows.

Quality and Durability

An economical geobag fails in two ways: the geotextile is of low grammage (which tears with the weight of the fill and friction with stones during filling) and lacks adequate UV additive (which becomes brittle in the sun and breaks in a few months when exposed). MOLTEXO works with 400 g/m² geotextile with calibrated UV additive, which distinguishes a professional construction geobag from a generic bag that breaks during filling or disintegrates within the first month of exposure to the Caribbean sun.

Also known as: Technical: geobag, geotextile sandbag, geobag, geotextile bag, geotechnical bag. In DR and Caribbean: geosaco, geocostal, saco geotextil, saco geotécnico. In other countries: sandbag (USA), geobag (USA), geotextile sandbag (USA), geocostal (LATAM), earthbag (USA), saco-tubo (LATAM), geotextile bag (ES).

Package: Ancho	40 cm (15.75 in)
Package: Alto	80 cm (31.5 in)
Package: Profundidad	40 cm (15.75 in)
Package: Peso	12.8 kg

MOLTEXO® Geobag

Geotextile 400 g/m², black / 40 x 80 cm (16 x 31 in) / Pack of 50 geotextile bags

Packaging dimensions

MOLTEXO^® Geobag