RedLINE®40 - Situra Inc



RedLINE®40 waterproof expansion joint system is used for waterproofing expansion joints in structures, such as commercial and industrial buildings, parking garages, tunnels, etc. RedLINE®40 is specifically designed to accommodate building movements, up to 2” [50 mm]. RedLINE®40 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®40 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®40 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®40 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 33 ft [10 m].


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

• Roof Expansion Joints
• Sub Grade (Waterproofing) Expansion Joints
• Plaza Deck Expansion Joints
• Parking Garage Expansion Joints
• Protected Roof Membrane Expansion Joints
• Tunnel Expansion Joints
• Vertical Wall Expansion Joints
• Bridge Expansion Joints
• Building Closure Joints
• Roof Control Joints


RedLINE®40 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 Appleid Membranes

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