Sikaflex 221 One-Component Multi-Purpose Industrial Grade Polyurethane Adhesive Sealant White

$27.00

Sikaflex 221 Multi-Purpose Industrial Grade Polyurethane Adhesive Sealant

3 in stock

Product Description

300mL Sikaflex-221 Multi-purpose Weather-resistant Strong Industrial Grade Polyurethane White Adhesive and Sealant

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

Sikaflex 221 shows a wide spectrum of adhesive and is suitable for an elastic, durable, strong seal.

Features:

  • Bonds well to a wide variety of substrates: wood, metals, metal primers, paint coatings, ceramic materials and plastics
  • Elastic
  • Resistant to ageing and weathering exposure. 
  • Low odour, electrically non-conductive and non-corrosive
  • Can be painted over, can be sanded.
  • Food-safe approved
  • Elastic
  • Silicone-free

Additional Information

Chemical Base

One-component polyurethane

Colour

White

Cure Mechanism

Humidity-curing

Density (uncured)

approx. 1.3 kg/L

VOC (EPA method 24)

48.3 g/L

Non-Sag Properties

Good

Application Temperature (product)

5°C to 40°C

Tack-Free Time

60 minutes

Open Time

45 minutes

Shrinkage

5%

Shore A Hardness (ASTM D 2240)

40

Tensile Strength (ASTM D 412)

1.8 MPa approx

Elongation at Break (ASTM D 412)

500%

Tear Propagation Resistance (ASTM D 624)

7 N/mm approx

Glass Transition Temperature

-45°C

Service Temperature

Permanent: -40°C to 90°C
1 day: 120°C
1 hour: 140°C

Shelf Life (Storage below 25°C)

12 months – cartridges & sausages
6 months – drums & pails

Sikaflex-221 Data Sheet