RedLINE®40G - Situra Inc



RedLINE®40G waterproof expansion joint system is used for waterproofing expansion joints in structures, such as commercial and industrial buildings, parking garages, tunnels, etc. RedLINE®40G is specifically designed to accommodate building movements, up to 2 1/2” [60 mm] under hydrostatic pressure. RedLINE®40G can be installed in variety of roofing and waterproofing membrane systems, these include Built-Up-Roofing, Coal Tar Pitch, Modified Bitumen, Hot Rubberized Asphalt, Spray Polyurethane Foam , Liquid Applied Membranes and Epoxy Resin.

RedLINE®40G is supplied directly to the job site in a roll with all detail work done and seamed together by a proprietary vulcanizing process, which results in monolithic and elastic seamed joints. Seaming can also be done on site if required.

The advantages of using RedLINE®40G include the elimination of wood curbs, metal components such metal flashing, nails and screws, caulked or glued seams resulting in significant labor savings. The flat profile of the RedLINE® expansion joint also does not obstruct the flow of water to drainage resulting in the elimination of ponded water. RedLINE®40G is manufactured from a saturated elastomer which is chemically stable and has excellent resistance to the effects of weathering.

Hydrostatic Pressure Limit: Working Pressure in Column of water is 134 ft [41 m] or 58 psi [400 kPa].


RedLINE®40G waterproof expansion joint system is designed to be used for:

• Protected Roof Membrane Expansion Joints
• Tunnel Expansion Joints
• Vertical Wall Expansion Joints
• Joints in Fluid Containment Structures
• Waterproofing Joints under Hydrostatic Pressure


RedLINE®40G Waterproof Expansion Joint is recommended for use with:

• 2 Part Epoxy Resin
• Asphalt
• Hot Rubberized Asphalt
• Modified Bitumen (Mopped)
• Cold Applied Adhesives
• Thin Coat Urethane
• Spray Polyurethane Foam
• Coal Tar Pitch
• Liquid Applied Membranes

RedLINE®40G Waterproof Expansion Joint Data Sheet
Material Safety Data Sheet