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.
10 gal. kits (2 x 5 gal. A + B)
Concrete Gray
24 months in original, unopened containers
Store dry at 40–95 °F (4–35 °C).
Condition material at 70–80 °F (21–27 °F) before using
| Comp. ‘A’ | 2700 cps |
| Comp ‘B’ | 4600 cps |
| Mixed | 2400 cps |
86 | (7 days at 72°F (22°C) and 50% R.H.) (ASTM D-2240) |
450 psi (3.9 MPa) | (7 days at 72 °F (22 °C) and 50 % R.H.) (ASTM D-638) |
40.4 lb./in. | (7 days at 72 °F (22 °C) and 50 % R.H.) (ASTM D-624) |
0.23 % | (7 days at 72 °F (22 °C) and 50 % R.H.) (ASTM D-570) (24 Hour Immersion) |
Component ‘A’ : Component ‘B’ = 1:1 by volume.
25 minutes, 8 fl. oz. (250 g)
Shave time: ~24 Hours
2.5– 3 hours
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 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.
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.
