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PROTAN InfraSeal 300 spray applied waterproofing membranes offers a versatility way of waterproofing underground structure. The versatility advantageous is in the geometry where complex areas such as lay-by recesses, cross passages, turn-outs, and crossover caverns or anywhere where the installation of conventional waterproofing membranes is inherently difficult. Protan InfraSeal 300 is the polymer-based, environmentally friendly spray applied waterproofing membrane. This membrane has been specifically developed for underground applications and is applied between the primary and the secondary concrete linings where it develops into a strong, doubled-bonded composite lining.
EXAMPLES OF APPLICATIONS:
SYSTEMS DESCRIPTIONS:
InfraSeal 300, applied in a 3 mm thickness in a single pass over primary concrete, is versatile and bonds well with different concrete placement methods, including steel insertions like rock anchor heads. Use a smoothing layer to cover steel insertions before application. If needed, a fine no-shrinkage mortar (up to 5 mm) can fill gaps around bars, covered by InfraSeal 300.










