Featured Products:
Type NB190® is a modern, hydrophilic chloroprene rubber waterstop with unmatched durability and water sealing capabilities. Manufactured NON-BENTONITE, modified chloroprene rubber, Type NB190® more than doubles its original size (400% in 36 days) when exposed to water.
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Product Description
Type NB190® is a modern, hydrophilic rubber waterstop with unmatched durability and water sealing capabilities. Manufactured NON-BENTONITE, modified chloroprene rubber, Type NB190® more than doubles its original size (400% volume swell) when exposed to water. This expansion creates an effective compression seal within joints of limited to no movement. Type NB190® can expand and reexpand unlimited times with virtually no loss of physical properties. Additionally, Type NB190® has excellent resistance to many chemicals, is heat-resistant, and can be safely used in drinking water.
Typical Applications
- Water treatment plants
- Wastewater treatment
- Pipe penetrations
- Storage tanks
- Slab on grade
- Foundations
- Tunnel segments
Manufacturer Info
JP Specialties
JP Specialties has been manufacturing the Earth Shield® line of waterstops for over 20 years. We are dedicated to providing technical support for a complete range of waterstops and focused on being the best. Our products (PVC, TPV, SS, and strip-applied waterstops) have the best physical properties in the industry, and more importantly, we provide unmatched service and technical support.
At the engineering level, our technical leaders are officers in multiple ACI committees. We were the first waterstop company to get NSF 61 approval, and our owner has written the leading professional resource book used in the construction industry (Little Book of Waterstop by David Poole). Our popular accredited seminar (worth one hour CE credit) is presented nationally and internationally to over 200 engineering and owner offices with many thousands of attendees.
We also provide contractors with aggressive pricing, extensive inventories, and factory fabrications for both standard and custom fittings. JP Specialties also does on-site welding schools and certifies attendees for the proper welding of waterstops.
Please check out our Waterstop CAD website as well!
Related Products:
| Image | Name |
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 | Waterstop Splicing Iron JPS Standard Irons are specifically designed for welding waterstops, and other thermoplastic extruded profiles (expansion joints, seals). |
 | Earth Shield® TPV Waterstop Earth Shield® Thermoplastic Vulcanizate Waterstop is used as a fluid-tight diaphragm, embedded in concrete, across and along the joint, for primary and secondary containment structures. |
 | Earth Shield® PVC Waterstop Earth Shield® Polyvinyl Chloride (PVC) Waterstop is used as a fluid-tight diaphragm, embedded in concrete, across and along the joint, for environmental engineered concrete structures. Earth Shield® Flexible PVC Waterstops are resistant to a wide range of water and wastewater treatment chemicals and are certified to meet or exceed the performance requirements of CRD C572-74. |