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Levelayer [Levelayer I]
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Tech Data Sheet
Material Safety Data Sheet
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| BRAND | | DS Construction Chemicals |
| DESCRIPTION | | Premium Self-Leveling Floor Underlayment. |
| USE | | LeveLayer I is a premium cement based, non shrinking, self-leveling floor underlayment designed for interior use. This single component product produces a smooth subfloor that typically will accept floor coverings in as little as 14 hours after installation. Mix LeveLayer I with water, pour or pump it onto the floor and it will level itself (no troweling) to a smooth hard surface. LeveLayer I can be applied in thickness ranging from feather edge up to 4" (10.2 cm). It develops a superior bond to the substrate and will accept foot traffic normally within four hours. LeveLayer I is not a gypsum based product. |
| STANDARDS | SPECIFICATIONS:
Compressive Strength – (ASTM C-109) 1 day 3,000 psi (20.7 MPa) 7 days 4,000 psi (30.3 MPa) 28 days 5,400 psi (37.2 MPa)
Initial Set: ASTM C-191 – 90 minutes Final Set: ASTM C-191 – 2-1/2 hrs.
Self-Leveling Working Time: 20 minutes at 70°F (21°C) Flexural Strength – (ASTM C-348) 1 day 750 psi (5.2 MPa) 7 days 850 psi (5.9 MPa) 28 days 1000 psi (6.9 MPa) |
| ADVANTAGES | PURPOSE:
LeveLayer I can be used to level or create a smooth surface on interior concrete floors, ceramic tile or terrazzo floors. It can be used on new construction projects to correct rough or unfinished concrete, to level out uneven floors and concrete floors that have been damaged by early age freezing. On restoration projects, use LeveLayer I to produce a smooth even finish over old concrete, (including floors damaged by freeze/thaw cycles) terrazzo and ceramic tile floors.
ADVANTAGES:
- Walkable in 3-4 hours.
- Self-Leveling.
- Approved by the Ceramic Tile Institute.
- Typically accepts floor coverings in 14 hours.
- Pumpable for better productivity.
- Cement based.
- Non shrinking/no dusting.
- Excellent bonding.
- Compatible with most carpet and tile adhesives.
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| APPLICATION | Preparation: To prepare surface, follow all standard ACI recommendations. Remove all dirt, gas, oil, grease, asphalt, paint, curing compounds and all loose surface materials. Do not use LeveLayer I on painted or sealed surfaces. To give floors a solid rigid base, patch all wide cracks with Dayton Superior Polyfast 24 hours prior to application.
Priming: Prime concrete surface with Dayton Superior Primer J-42) cut 1:1 with water. Apply with a brush or broom at 400-500 sq. ft. per gal. (9.8- 12.3 m2/L) after dilution. Coverage will depend on texture of the surface. Allow the primer to dry completely to the touch before proceeding, at least 3 hours at 70°F (21°C), and 50% R. H. (do not wait longer than 24 hours). For wood, ceramic tile, terrazzo and other non absorbent surfaces, contact Dayton Superior for special instructions.
Mixing: Pour 6-1/2 qts. ( 6.2L) of water into a mixing container, then add one 50 lb. (22.7 kg) bag of LeveLayer I. With a blending paddle attached to a heavy duty electric drill (650 rpm), mix for one to two minutes until mixture is smooth and free of lumps. For pumping applications, mix for one to two minutes in the pump's mixing tank. Do not over water or retemper.
Installation: Pour Levelayer I over the substrate spreading the material with a long handled spreader. LeveLayer I can be pumped using an appropriately sized grout pump. Call Dayton Superior for more information. Installation thickness can range from feather edge up to 4"(10.1 cm). For layers greater than 1-1/2" (3.8 cm) thick, LeveLayer I should be extended with 15 – 25 lbs. (6.8 – 11.3 kg) of clean 3/8" (I cm) pea gravel for each 50 lbs. (22.7 kg) bag. First mix LeveLayer I as in earlier instructions and then during the last minute of mixing add the required aggregate. Should a finish coat be required, apply a non-extended layer of LeveLayer I after the first pour becomes walkable. First reprime the first pour with another application of Dayton Superior Primer (J-42). No troweling is necessary. LeveLayer I will level itself during the first 20 minutes at 70°F (21°C) and it will accept foot traffic in 4 hours. Wearing shoes with cleats, for installing LeveLayer 1 is recommended. Under normal conditions, floor coverings can be applied in 14 hours. This can be accomplished provided the temperature, relative humidity and ventilation during installation and curing is maintained properly. Temperatures should be 72°F (22°C) or higher, relative humidity should be less than 60% and the area should be ventilated to assist in the drying and curing process. Care should be taken when ventilating to avoid direct air movement over the surface of the Levelayer. This can cause wrinkling and/or cracking of the surface of the material. All floor adhesives compatible with normal concrete may be used on LeveLayer I. Do not install LeveLayer I when the average daily temperature is less than 40°F (4°C). During hot weather, work quickly and use cold water for mixing because the average working time will decrease. |
| SPECIAL NOTES | | LIMITATIONS: Not to be used outdoors. Protect the pour from excessive drying due to heat and wind. Do not install below 40°F (4°C) and use cool water when ambient temperature is above 90°F (32°C). No other admixtures are required with Levelayer I. Shelf life is one year. Store in a cool, dry location. |
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