Lunch and Learn Sika

• Pre-construction mock-up is required and must reflect actual job site conditions for warranty to remain in effect.
• Some deeper patterns require back-up strips and are noted on the pattern details shown in this catalog. Please refer to the section of this catalogue regarding back-up 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 0°C. Use extra care under these conditions.
• Concrete temperatures in excess of 60°C will adversely affect the material properties of the Form Liners. Sika does not recommend the use of Form Liners in these applications.
• Rigid Polymer liners are NOT recommended for precast applications using heated beds.
• 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 Sika Greenstreak No. 7000 Form Release.
• Although UNI-CAST Form Liners do not require a release agent, Sika® Greenstreak®’s Form Release 7000 is highly recommended to enhance the appearance of the concrete.
• Use one concrete supplier for uniformity of colour 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 Sika Canada for further specification information.
• See ACI 303R-04 “Guide to Cast-In-Place Architectural Concrete Practice” for further recommendations in design and use.
  

Do not install SAKRETE Self Levelling Underlayment over particle board, chipboard, hard wood, Lauan, Oriented Strand Board (OSB), metal, vinyl, fibreglass, or plastic.

Substrate and ambient room temperatures must be between +10 °C (50 °F) and +30 °C (86 °F) during application and for at least 2 days after installation.

Do not use for surfaces that require a slope for drainage.

Do not use product as a wearing surface. Resilient flooring must be installed over the underlayment.

Use in dry, interior areas only. Do not use when hydrostatic pressure is present.

22.7 KG (50 lb) bag yields approximately 0.013 m³ (0.46 ft³).

Allow newly placed material to set until surface is hard to the touch. Under most conditions, SAKRETE Self Levelling Underlayment requires no special curing. Substrate and ambient room temperatures must be between +10 °C (50 °F) and +30 °C (86 °F) during application and for at least 2 days after installation.

Prior to pouring, be sure to close all doors and windows, and turn off HVAC systems, until the underlayment has cured. Divide the area into sections to permit a continuous pour without cold joints. Pour material in a continuous strip about 300 mm (1 ft) in width, across the narrow section of the floor. Pour the next bag adjacent to the first pour. Continue successive pours in this manner until the floor is covered. Spread the material using a gauge-rake, over the entire surface, to ensure that the proper thickness is achieved.

Add 4.5 L (1.18 US gal) to 4.7 L (1.24 US gal) of cool, potable water into a clean mixing container. Slowly empty the 22.7 KG (50 lb) bag of SAKRETE Self Levelling Underlayment into the mixing container while mixing with a heavy-duty, 13 mm (1/2 in) electric drill and an “eggbeater” mixing paddle. After all the powder has been added, thoroughly mix the material for 2 minutes.

Add 4.5 L (1.18 US gallons) to 4.7 L (1.24 US gallons) of cool, potable water into a clean mixing container.

Ceramic tiles should be solid and structurally sound. Thoroughly clean floor to ensure it is free of all dirt, oil, grease, paints, sealers, debris, or any other substance that may interfere with bonding. Prime the floor with SAKRETE Concrete Adhesive using a roller and apply SAKRETE Self Levelling Underlayment while the primer is still tacky.

Exterior-grade plywood should be solid, structurally sound and meet all industry guidelines. Thoroughly clean floor to ensure it is free of all dirt, oil, grease, paints, sealers, debris, or any other substance that may interfere with bonding. Prime the floor with SAKRETE Concrete Adhesive using a roller and apply SAKRETE Self Levelling Underlayment while the primer is still tacky. A metal lath, meeting the requirements of ASTM C 847, must be installed over the primed plywood prior to the installation of the underlayment.

Concrete surface should be solid, structurally sound, and rough, to help ensure proper bonding of the underlayment. Some concrete surfaces may require mechanical profiling by shot blasting or scarifying. See International Concrete Repair Institute (ICRI) Concrete Surface Profile (CSP) #3 for an acceptable level of roughness. Fill deep holes with SAKRETE fast-patch and allow to cure for 3 hours before applying SAKRETE Self Levelling Underlayment. Thoroughly clean floor to ensure it is free of all dirt, oil, grease, paints, sealers, debris, or any other substance that may interfere with bonding. Prime the floor with SAKRETE Concrete Adhesive using a roller and apply SAKRETE Self Levelling Underlayment while the primer is still tacky.

This product is designed for applications varying from 3 mm (1/8 in) up to 25 mm (1 in) in a single pour.

30 KG (66 lb) yields approximately 0.014 m³ (1/2 ft³).

Curing means maintaining proper moisture and temperature. Allow newly placed material to set until the surface is hard to the touch. SAKRETE Concrete Mix will set in approximately 6 hours. Keep material damp or cover with plastic to prevent evaporation of mix water for at least three (3) days. Protect from freezing for at least 24 hours. New concrete can be open to foot traffic in 24 hours.