Sikaflex-1A Stone is a moisture-cured non-sag polyurethane in a 20 oz sausage. It seals joints up to 1/2 inch, places at 40 F, and works as a construction adhesive on roofing and flashing details.
Sikaflex-1A is a moisture-cured non-sag polyurethane joint sealant. This Stone 20 oz sausage (part 187618) is for joints up to 1/2 inch and for common construction-adhesive details. It holds plus or minus 35% movement, is readily placed at 40 F, and is jet-fuel resistant. Light colors can yellow in front of a direct gas-fired heating element. Unopened sausage shelf life is 18 months.
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | Sikaflex-1A |
| Part no. | 187618 |
| Unit | 20 oz sausage |
| Color | Stone |
| Movement | +/- 35% (ASTM C719) |
| Application temperature | 40 F to 100 F |
| Jet fuel | Resistant |
| Tack-free | 3 to 6 hours at 73 F |
| Shelf life | 18 months (sausage) |
Product documents: Sikaflex-1A Product Data Sheet (PDF)
What adhesive details use Sikaflex-1A Stone?
Construction adhesive between dissimilar materials, plus small joints, fillets, flashing, and common roofing details. Depth stays at 1/2 inch max.
What size is Sikaflex-1A Stone?
The sausage is 20 oz (600 ml), part 187618.
What low-temperature place does Sikaflex-1A Stone allow?
Readily placed at 40 F. Application range is 40 F to 100 F after the sausage is conditioned to 65 F to 75 F.
What jet-fuel resistance does Sikaflex-1A Stone have?
Jet-fuel resistant. Chemical resistance is good to water, diluted acids, and diluted alkalines. Technical Service covers specific chemicals.
What heat yellowing does Sikaflex-1A Stone show?
Light colors can yellow if exposed to a direct gas-fired heating element. Stone is a light architectural color, so keep it off that exposure.
What shelf life does Sikaflex-1A Stone have?
18 months in the unopened sausage, stored at 40 F to 95 F. Opened units are used the same day.
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