The ChemCurb System replaces the old style metal pitch pans with versatile precast curb components, 2 part urethane pourable sealant, and structural adhesive/sealant. The system can usually be installed in under 15 minutes and eliminates the need for flashing or mechanical attachment. The ChemCurb System is designed for use on granulated modified bitumen, PVC, EPDM, PIB, TPO single ply, asphalt, and coal tar B.U.R. Please note TPO Primer must be used on TPO single-ply roof substrates. When installed properly, the ChemCurb System forms a durable waterproof rubber seal around penetrations of any size.
Bonding surfaces should be clean, dry and free from all contamination that may inhibit the sealant’s performance. Remove all previously applied caulk, mastic, cement, asphalt, and other contaminants from penetrations with a wire brush. Brush away all gravel or loose granules. Isopropyl alcohol is an effective cleaner for surface preparation. Please contact customer service for application guidelines with temperatures below 32°F (0°C). Do not use on TPO without the use of TPO primer. Do not use on Hypalon. Smooth APP membranes require a granulated target. This product sets rapidly upon exposure to moisture. Please refer to data sheet for step-by-step installation guidelines.
- rapid installation reduces labor significantly
- excellent adhesion sticks to most roofing materials
- wide temp range service range -40F to 200F
- 1-part feature accommodates movement