Control Joints - Sikadur®-51 NS
Flexible epoxy control-joint sealer/adhesive
Sikadur®-51 NS is a 2-component, non-sagging, solvent-free, moisture-tolerant, flexible epoxy control joint sealer and adhesive.
- 2 to 1 ratio ensures easy mixing, easy handling
- An adhesive with excellent flexibility
- Excellent durability
- Conforms to ACI 302.1R (4.10-Joint Materials)
- Shock-absorbent cure
- Prevents deterioration of control-joint edges
- Use as a security sealant
Usage
- Use to fill vertical and overhead non-moving, saw-cut construction control joints and cracks
- Use as a flexible adhesive
Advantages
- 2 to 1 ratio ensures easy mixing, easy handling
- An adhesive with excellent flexibility
- Excellent durability
- Conforms to ACI 302.1R (4.10-Joint Materials)
- Shock-absorbent cure
- Prevents deterioration of control-joint edges
- Use as a security sealant
Packaging
3 gal. (11 L) units
Color
Concrete gray
Product Details
Product Information
Shelf Life24 months in original, unopened containers
Storage ConditionsStore dry at 40-95 °F (4-35 °C).
Condition material to 65-85 ° F (18-29 °C) before using.
ViscosityComp. ‘A’ 300,000-350,000 cps.
Comp. ‘B’ 29,000-31,000 cps.
Mixed Non-sag paste
Application
Application Information
Mixing RatioComponent ‘A’: Component ‘B’ = 2:1 by volume.
Pot Life1-1.5 h
Cure TimeTack-Free Time: 7-8 h
Consumption
Coverage1 gal. will yield 231 in3 or will fill 102 ft. of 1/8 in. wide x 1.5 in. deep joint
Application Steps
SUBSTRATE PREPARATIONSubstrate must be clean and sound. It may be dry or damp, but free of standing water. Remove dust, laitance, grease, curing compounds, impregnations, waxes, foreign particles, disintegrated materials, etc., by mechanical means (i.e. sandblasting, high pressure water blasting).
MIXINGPre-mix each component. It is critical to accurately proportion 2 parts Component ‘A’ and 1 part Component ‘B’ by volume into a clean pail or appropriately sized mixing container. Mix thoroughly for 3 minutes with a Sika Paddle on a low-speed (400-600 rpm) drill until uniform in color. Mix only that quantity which can be used within pot life.
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