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Sika SK1A2212 - Sikaflex®-1a One Part Polyurethane, Elastomeric Sealant/Adhesive, Gray

MFR: SK1A2212
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Sika SK1A2212 - Sikaflex®-1a One Part Polyurethane, Elastomeric Sealant/Adhesive, Gray

Sikaflex®-1a is a premium-grade, high-performance, moisture-cured, one-component polyurethane-based, non-sag elastomeric sealant used in certain Sarnafil® and Sikaplan® roofing or waterproofing system details. Typical applications include wall, curb and drain terminations. It is also used as a sealant at pipe penetrations and under certain metal flashings. Sikaflex-1a can be used as a pourable sealer pocket filler.

  • Bonds well to primed Sika PVC membranes and to common building materials
  • High elasticity, cures to a tough, durable, flexible consistency with exceptional cut and tear resistance
  • Easy to apply from the cartridge and has excellent workability characteristics
  • Excellent resistance to aging and weathering
  • Odorless, non-staining


NameSika SK1A2212 - Sikaflex®-1a One Part Polyurethane, Elastomeric Sealant/Adhesive, Gray
Gemaire Item NumberSIKAG
Manufacturer Product NumberSK1A2212
SKU - PIM Number1484299904802
ERP Number239927
Unit of MeasureEA
Weight1.0 Pounds (Lb)
Length12.0 Inches (In)
Width2.0 Inches (In)
Height2.0 Inches (In)
Country of OriginUSA
Service Temperature-40°F to 170°F (-40°C to 76.6°C)
Application Temperature40°F to 100°F (4.4°C to 37.7°C)
CoverageVaries depending on thickness
Dry Time3 to 6 hours Tack-free time; 3 hours Tack-free to touch; 4 to 7 days Final cure
Shelf Life12 Months
Storage Temperature40°F to 95°F (4.4°C to 35°C)
UV ResistantNo
Tensile Strength175 psi (1.21 MPa)
ApplicationElastic adhesive between materials with dissimilar coefficients of expansion
ApprovalsTT-S-00230C, Type II, Class A. Meets ASTM C-920, Type S, Grade NS, Class 35, use T, NT, O, M, G, I; Canadian standard CAN/CGSB 19.13-M87.
FunctionsFor all types of joints where maximum depth of sealant will not exceed 1/2"
Size10.1 Ounce
TypePolyurethane based
ViscosityCA.>20.5mm2/s at 104°F (40°C)
GEM - Case Quantity


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