Sikadur®-58 CJR
Semi-flexible Epoxy Control Joint Resin
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Sikadur®-58 CJR is a 2-component, self-leveling, 100 % solids, flexible, control joint resin sealer and adhesive.
- Remains semi-flexible. Does not age-harden
- Prevents deterioration of joint edges
- Excellent adhesive properties
- Ideal for use with plural injection type systems
- Shock absorbent and durable. Withstands wheel traffic and heavy loads
- Conforms to ACI 302.1R (4.10 - Joint Materials)
- Use as a tamper resistant sealant
Usage
- Horizontal, non-moving, interior, horizontal saw cut, preformed control and construction joints
- Facilities such as warehouses and industrial plants, where such joints are subject to load-bearing conditions involving wear and impact
- Repairing interior concrete slabs that have experienced random cracking due to shrinkage / As a semiflexible adhesive
Advantages
- Remains semi-flexible. Does not age-harden
- Prevents deterioration of joint edges
- Excellent adhesive properties
- Ideal for use with plural injection type systems
- Shock absorbent and durable. Withstands wheel traffic and heavy loads
- Conforms to ACI 302.1R (4.10 - Joint Materials)
- Use as a tamper resistant sealant
Packaging
10 gal. kits (2 x 5 gal. A + B)
Color
Concrete Gray
Product Details
Shelf Life
24 months in original, unopened containers
Storage Conditions
Store dry at 40–95 °F (4–35 °C).
Condition material at 70–80 °F (21–27 °F) before using
Viscosity
| Comp. ‘A’ | 2700 cps |
| Comp ‘B’ | 4600 cps |
| Mixed | 2400 cps |
Shore A Hardness
| 86 | (7 days at 72°F (22°C) and 50% R.H.) (ASTM D-2240) |
Tensile Strength
| 450 psi (3.9 MPa) | (7 days at 72 °F (22 °C) and 50 % R.H.) (ASTM D-638) |
Tear Strength
| 40.4 lb./in. | (7 days at 72 °F (22 °C) and 50 % R.H.) (ASTM D-624) |
Water Absorption
| 0.23 % | (7 days at 72 °F (22 °C) and 50 % R.H.) (ASTM D-570) (24 Hour Immersion) |
Application
Mixing Ratio
Component ‘A’ : Component ‘B’ = 1:1 by volume.
Pot Life
25 minutes, 8 fl. oz. (250 g)
Cure Time
Shave time: ~24 Hours
Tack Free Time
2.5– 3 hours
Coverage
1 gal Yield in Linear Feet with 10 % waste
| Depth/Width | 1/8" | 1/4" | 3/8" |
| 1/2" | 227 | 139 | 92 |
| 3/4" | 185 | 92 | 62 |
| 1" | 139 | 69 | 46 |
| 1 1/4" | 111 | 55 | 37 |
| 1 1/2" | 92 | 46 | 31 |
| 1 3/4" | 79 | 40 | 26 |
| 2" | 69 | 35 | 23 |
SUBSTRATE PREPARATION
Substrate must be clean and sound. It may be dry or damp, but must be free of standing water. Remove dust, laitance, grease, curing compounds, bond inhibiting impregnations, waxes and any other contaminants. Concrete should be cleaned and prepared to achieve a laitance and contaminant free, open textured surface by blast cleaning or equivalent mechanical means. The most common method utilizes a dustless, diamond blade saw. Climate controlled rooms should be stabilized at least 14 days before application of Sikadur®-58 CJR. Priming is not required. The application of stain preventing film or waxing with Dial bar soap on surfaces adjacent to control joints may be used to prevent the occurrence of staining from joint filler overflow. A thin layer of clean, dry sand may be used to prevent the flow of joint filler into stress cracks that occur at the bottom of control joints. Do not use a compressible backer rod to stop the flow of Sikadur®-58 CJR unless the joint depth exceeds 2 in. (60 mm). Joint width should be between 1/8 in. (3.2 mm) and 3/8 in. (9.5 mm). For wider joints, please contact Sika Technical Services.
MIXING
Pre-mix each component thoroughly before using (usually 1–3 minutes - color must be consistent). If applying without a mechanical pump, proportion equal parts by volume of Component A and Component B into clean pail. Mix thoroughly for 3 minutes with a low-speed (400–600 rpm) drill using a Sika paddle until uniform in color. Mix only quantity that can be applied within its pot life.