Sikaflex 221 1-Component Polyurethane Sealant Aluminum Gray 600ml Unipac

Sika Corporation
Item #
SIKA-90889
Mfr. Model # 90889

Sikaflex 221, Aluminum Gray, One-Component Adhesive/Sealant, 600ml Unipac

Sikaflex-221 is a high-quality multi purpose non-sag 1-c polyurethane sealant that cures on exposure to atmospheric humidity to form a durable elastomer.

Sikaflex-221 bonds well to a wide variety of substrates and is suitable for making permanent elastic seals of high adhesive strength. Suitable substrate materials are wood, metals, metal primers and paint coatings (2-c systems), ceramic materials and plastics

Characteristics and Advantages:

  • 1-C formulation
  • Elastic
  • Low odor
  • Resistant to aging and weathering exposure
  • Non-corrosive
  • Can be overpainted
  • Can be sanded

  • Bonds well to a wide variety of substrates
  • Resistant to aging
  • Can be sanded and painted
  • Listed under NSF/ANSI/CAN 61 ? Drinking Water System Components (aluminum gray, black, and white)
  • Listed under NSF ? Proprietary Substances and Nonfood Compounds (aluminum gray, black, and white)
  • Non-corrosive
  • Low odor
Product Details
Specification Description
# of Components: Single Component
Adhesive/Glue Type: Caulks & Sealants
Brand Name: Sika Corporation
Brand Part Number: 90889
Chemical Base: Polyurethane
Color: Aluminum Gray
Cure Mechanism: Moisture
Elongation: 500%
Model: Sikaflex 221
Operating Temperature: -40° to 195°F
Package Type: Unipac
Paintable: Yes
Primary Application: General Purpose
Shelf Life: 365 days
Shore Hardness: 40A
Size: 600 ml
Specifications Met: NSF Proprietary Substances and Nonfood Compounds, NSF/ANSI/CAN 61
Tear/Shear Strength: 40 pli
Temperature Rating: Standard (Less Than 200°F)
Tensile Strength: 260 psi
Working/Tack/Skin Time: 1 Hour
$14.50 / each
  • 20+ for $12.95 / each
  • 40+ for $12.50 / each

Estimated to ship Fri. Jun 28.