Sikaflex-1A Capitol Tan 20 oz sausage. Moisture-cured non-sag polyurethane sealant for joints to 1/2 inch. Tack-free 3 to 6 hours. Green concrete 24 hours after pour. Part 91004.
Sikaflex-1A is a premium-grade, moisture-cured, one-component, non-sag polyurethane sealant and adhesive for joints no deeper than 1/2 inch. This 20 oz sausage, Capitol Tan, can go on green concrete 24 hours after the pour, or on damp concrete 60 minutes after standing water is gone. Tack-free in 3 to 6 hours at 73 F. Final cure 4 to 7 days. Gun it at 40 to 100 F. Wait 7 days before painting. It is not Sikaflex-15 LM.
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | Sikaflex-1A |
| Color | Capitol Tan |
| Pack | 20 oz sausage |
| Part no. | 91004 |
| Type | Moisture-cured non-sag polyurethane |
| Tack-free | 3 to 6 hours at 73 F |
| Final cure | 4 to 7 days |
| Green concrete | 24 hours after pour |
| Damp concrete | 60 min after water gone |
| Joint depth | 1/4 to 1/2 in |
| Apply | 40 to 100 F |
Product documents: Sikaflex-1A PDS (PDF)
What pack?
Capitol Tan 20 oz sausage. Part 91004. Other live colors of this same pack are on the color cards. Cartridge and sausage stay separate.
Skin time?
Tack-free 3 to 6 hours at 73 F. About 1/8 inch cure in 24 hours. Final cure 4 to 7 days.
Green or damp concrete?
Green: 24 hours after the pour. Damp: 60 minutes after standing water is gone.
When can I paint?
Wait 7 days at standard conditions before painting or immersion.
Is this 15 LM?
No. 1A is the Class 35 joint sealant. 15 LM is the low-modulus high-movement grade, listed separately.
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