Extruded and Molded Rubber Waterstop System

Rubber Waterstop has been used extensively on projects throughout the United States and the world. Starting with projects designed by the U.S. Army Corps. of Engineers and the U.S. Bureau of Reclamation, Rubber Waterstop usage has expanded to all types of concrete structures for the purpose of keeping liquids in or out. SBR Rubber has been used primarily for water containment, while Neoprene Rubber has been used generally for projects involving sewage, water treatment, and chemical environments. Waterstops are also available in other polymers such as EPDM, Nitrile, Silicone, and Natural Rubber. Our High Tensile Neoprene Waterstop provides maximum resistance to Ozone, Sewage, Oil, and?Solvents.

We offer a complete line of standard extruded profiles that may be joined using our unique molded intersections. This system provides the flexibility to customize for each application and structure.

We also offer Cal-Trans Strip Waterstop >

Physical Properties Chart of Various Polymers

Property	ASTM Test Methods	SBR (Styrene Butadien)	Natural Rubber	High Tensile Neoprene*
Tensile Strength PSI (min)	D412	3000	3500	2500
Tensile Strength at 300% Modulus (PSI min)	D412	1150	1450	1150
Ultimate Elongation (% min)	D412	450	500	450
Durometer (Shore A ± 5)	D2240	65	65	65
Water Absorption, 2 Days at 70°C % Change (% max)	D471	5	5	5
Compression Set 22 hrs at 70°C % of Original Deflection (max)	D395 (Method B)	30	30	40
Accelerated Aging 96 hrs at 70°C % of Tensile Strength Before Aging (min)	D573	80	80	80
Accelerated Aging 96 hrs at 70°C % of Elongation Before Aging (min)	D573	80	80	80
Ozone Resistance 7 Days at 50 PPHM at 70°C, 20% Elongation	D1149	no cracks	no cracks	no cracks

*High Tensile Neoprene Waterstop provides maximum resistance to Ozone, Sewage, Oil, and Solvents.

Waterstop Profile Chart:

The profiles below are normally provided in SBR and Neoprene compounds as required. Waterstop is usually provided in 50 ft. lengths. Special profiles and compounds can be provided to meet specific project requirements. WARCO BILTRITE Rubber Waterstop is also available in non-spec commercial grade.

Profiles	Normal Size (Width x Thickness x Bulb O.D.)	Polymer	Weight Per Cubic Foot	Temperature
Dumbell Type	Dumbell Type 6" x 3/8" 3/4" End Bulbs 152.4mm x 9.5mm x 19mm end bulbs	Neoprene	160	-30°F to +200°F
Dumbell Type		SBR	130	-30°F to +200°F
Dumbell Type	Dumbell Type 9" x 3/8" 3/4" End Bulbs 228.6mm x 9.5mm x 19mm end bulbs	Neoprene	230	-30°F to +200°F
Dumbell Type		SBR	190	-30°F to +200°F
Center Bulb Type	Center Bulb Type 6" x 1/4" 5/8" End Bulbs and 1 1/8" Center Bulb 152.4mm x 6.3mm (15.9mm End Bulbs and 28.6mm Center Bulb)	Neoprene	125	-30°F to +200°F
Center Bulb Type		SBR	105	-30°F to +200°F
Center Bulb Type	Center Bulb Type 9" x 3/8" 1" End Bulbs and 1.5" Center Bulb 228.6mm x 9.5mm (25.4mm End Bulbs and 38mm Center Bulb)	Neoprene	300	-30°F to +200°F
Center Bulb Type		SBR	250	-30°F to +200°F

Waterstop Molded Intersections:

Type	Dumbell Type		Center Bulb Type
Type	6"	9"	6"	9"
Union	C 6" DBU	C 9" DBU	C 6" DBCBU	C 9" DBCBU
Flat Cross	C6" DBFC	C9" DBFC	C6" DBCBFC	C9" DBCBFC
Flat T	C6" DBFT	C9" DBFT	C6" DBCBFT	C9" DBCBFT
Flat L	C6" DBFE	C9" DBFE	C6" DBCBFE	C9" DBCBFE
Vertical T	C6" DBVT	C9" DBVT	C6" DBCB	C9" DBCBVT
Vertical L	C6" DBVE	C9" DBVE	C6" DBCBVE	C9" DBCBVE

Other Waterstop Products

Cal–Trans Strip Water Stops

Polymer:	Neoprene
Duro:	55
Thick:	1/8–1/2
Spec:	Caltrans 51-1.14

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Our rubber products are a proprietary blend of various polymers formulated to meet stated physicals and specifications. The named product polymer is not necessarily the primary polymer representing the highest percentage of the polymer blend. Determination of the suitability of the goods for the uses and applications contemplated by Buyer and others shall be the sole responsibility of the Buyer or user. No guaranty is given with respect to length of service on any particular application. Suggestions or recommendations made by Seller in its product literature concerning uses or applications of the goods are believed to be reliable, but Seller makes no warranty or guaranty of results to be obtained since the conditions of the use and application by Buyer and others are beyond Seller’s control.
View complete Terms & conditions of Sale for suitability of use and formulations >

West American Rubber Company, LLC | 1337 Braden Court · Orange, California 92868 | Tel: 714–532–3355 | Fax: 714–532–2238 | sales@warco.com
Biltrite Ripley Operations, LLC | 16310 Highway 15 North · Ripley, Mississippi 38663 | Tel: 800–245–8748 | Fax: 662–837–2903 | biltritesales@warco.com

West American Rubber Company is an ISO 9001 Certified Company

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Extruded and Molded Rubber Waterstop System