Sikadur®-51
Sikadur®-51 is a 2 component semi-self levelling epoxy sealant for joint sealing.
- Prevents deterioration of joint edges
- Excellent adhesive properties
- Complies with ACI-302.1R (4.10-Materials for sealing joints)
- It can be used on slopes of up to 15°
- Absorbs shock, is durable and resists heavy traffic and forklift tires
- It can be used as a safety sealant (non-pick)
Usage
- Filling of horizontal control and construction joints with little or no movement
- Filling of cracks with little or no movement
Advantages
- Prevents deterioration of joint edges
- Excellent adhesive properties
- Complies with ACI-302.1R (4.10-Materials for sealing joints)
- It can be used on slopes of up to 15°
- Absorbs shock, is durable and resists heavy traffic and forklift tires
- It can be used as a safety sealant (non-pick)
Packaging
3 kg kit (Parts A + B)
Colour
Light grey
Product Details
APPROVALS / STANDARDS
Complies with ACI-302.1R (4.10-Materials for sealing joints)
Shelf Life
Twenty-four (24) months from date of manufacture when stored as stated in the original unopened package.
Storage Conditions
Between + 4°C and + 35°C. Condition the material at a temperature between +8°C to +24°C before use.
Density
~ 1.55 kg/L at 23°C
Viscosity
| Comp. A: | 5.800 cps |
| Comp. B: | 7.900 cps |
| Mix A + B : | 7.000 cps |
Shore A Hardness
70 to 80
Shore D Hardness
> 50
Tensile Strength
3.9 MPa
Water Absorption
1.86 %
Application
Mixing Ratio
Comp. A : Comp. B = 1 : 1 (by volume)
Pot Life
| 10°C | ~ 120 minutes |
| 20°C | ~ 60 minutes |
| 30°C | ~ 30 minutes |
Curing Time
| Pedestrian traffic | 1 to 2 days (dependent on temperature) |
| Heavy vehicle traffic | 2 to 6 days (dependent on temperature) |
Applied Product Ready for Use
| Movement Capacity | ± 2.5%, total movement = 5% |
| Bond Strength: Sandblasted Steel | ~ 2.5 MPa |
| Bond Strength: Sandblasted Concrete | ~ 2.0 MPa |
SUBSTRATE QUALITY
All surfaces must be clean, dry and free from any loosely adhering particles or surface contaminants such as dirt, oil, dust, grease, etc.
SUBSTRATE PREPARATION
Joint Configuration: Width : Depth ratio should be 1 : 1 to 1 : 2. Minimum joint depth should be 12 mm.
In open joints the correct depth should be established by inserting Sika® PEF Backing Rod of a suitable dimension (refer Sika® PEF Rod data sheet). If the joint has a solid formed base it is essential to apply a bond breaker tape to this surface in order to prevent back adhesion. This will then allow the sealant unrestrained movement throughout the depth of the joint.
PRIMING:
Priming is not required, except for concrete surfaces that are slightly damp. Use Sikadur®-52 as a primer, brush it out to form an even and uniform film thickness. Allow primer to become tacky before applying Sikadur®-51.
MIXING
Premix each component. Pour Component A and Component B into a clean container in equal parts by volume. Mix appropriately with a low speed drill (400 to 600 rpm) for at least 3 minutes until the consistency and colour are uniform. Mix only the amount that will be applied within the product's potlife.
CLEANING OF TOOLS
The uncured material can be removed from tools with Sika® Thinner C (NZ). Cured product can only be removed mechanically.