Aquastop Waterstop
PASCO Aquastop Waterstop is a flexible hydrophilic polymer rubber waterstop for sealing construction joints and precast panels. When installed Aquastop expands in a controlled fashion on contact with water.
PASCO Aquastop consists of tightly packed charged microscopic platelets. Between and within these platelets there is a separation of charges positive and negative. Water molecules are attracted to the unique clay structure of positive and negative charges and wedge themselves between the platelets causing them to separate & swell. The hydrated bentonite forms a seal preventing further migration of water. As hydrostatic pressure is increased the platelets compact forming a tighter seal.
20mm x 25mm x 5m per roll, 6 rolls per box
Features/Benefits
- Lightweight flexible coils easy to install
- Forms a positive seal, sealing cracks & small voids
- Eliminates seem welding & split forming associated with PVC/rubber waterbars
- May be used in potable water tanks
- Non toxic
- Butt end joining. Continuous waterstop
- Can be applied to irregular concrete surfaces
- Withstands hydrostatic head up to 70m
- Unaffected by repeated wetting & drying cycles
- Permanently active system
- Compressible and malleable allowing for good contact in precast applications
- Does not deteriorate
- Self healing
Areas of Application Include:
- Underground structures, tunnels, underground stations, box culverts, pits, retaining walls, manholes, basements, precast panels etc.
- Aquastop is used to stop water infiltration through both vertical and horizontal non-moving construction joints, irregular surfaces and around penetrations through concrete
- Aquastop should not be used as an expansion joint sealant. It is designed to replace conventional waterstops in construction joints
- The sodium bentonite in Aquastop is the key to its success
- Bentonite swells when in contact with water to form an impermeable barrier
- A permanent pressure seal is formed