Important Factors to Remember
- Pre-construction mock-up is required and must reflect actual job site conditions for warranty to remain in effect.
- Some deeper patterns require backup strips and are noted on the pattern details shown in this catalog. Please refer to the section of this catalog regarding Greenstreak Backup Strips for additional information.
- Listed Form Liner dimensions are nominal. Changes in temperature can cause the liner to expand or contract. Allow for dimensional variations in the design and installation.
- All Form Liners are UV stabilized, however, protect liners from over exposure to direct sunlight.
- Rigid Polymer liners will become more rigid at temperatures below 25°F. Use extra care under these conditions.
- Rigid Polymer liners are NOT recommended for precast.
- Type 3 concrete with accelerators create high heat during cure which could damage Rigid Polymer Form Liners.
- Rustication strips are recommended at the liner joints that do not blend with the pattern.
- Use Greenstreak No. 7000 Form Release.
- Although UNI-CAST Form Liners do not require a release agent, Greenstreak’s Form Release 7000 is highly recommended to enhance the appearance of the concrete.
- Use one concrete supplier for uniformity of color and texture.
- Place concrete with an elephant trunk to minimize aggregate segregation.
- Vibrate concrete to eliminate lift lines and minimize air voids.
- Clean the liner between castings with a mild detergent and scrub brush.
- Consult Greenstreak for further specification information.
- See ACI 303R-91 “Guide to Cast-In-Place Architectural Concrete” for further recommendations in design and use.
- Concrete temperatures in excess of 140° F will adversely affect the material properties of the form liners. Greenstreak doesn't recommend the use of form liners in these applications.
A preconstruction mock-up is required and must reflect actual job site conditions for the warranty to remain in effect.