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Sikaflex® 221 - Grey, 10.3 oz.
Part Number:
  • 221-G
$8.18

In stock

- Sikaflex® 221 - Grey, 10.3 oz tube
- Sikaflex® -221 bonds well to a wide variety of substrates
- 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

OR

A grey, high performance, polyurethane-based sealant, 10.3 oz that remains permanently elastic and is ideal for sealing materials and dissimilar coefficients of expansion. For use on aluminum, steel, wood, fiberglass and zinc-coated steel. General purpose, fast curing. This versatile polyurethane product is the most popular adhesive/sealant in the transportation industry. It is an excellent sealer and can handle many light bonding applications. Sikaflex® -221 is a high-quality multipurpose non-sag 1-c polyurethane sealant that cures on exposure to atmospheric humidity to form a durable elastomer. Meets approvals ASTM C920 types and Federal Specifications TT-S-00230C. Sikaflex® -221 is tested and classified in accordance with ANSI/UL 723 “Test for Surface Burning Characteristics of Building Materials”. Sikaflex® -221 is manufactured in accordance with ISO 9001 / 14001 quality assurance system and the Responsible Care Program.

Product Benefits

- 1-C formulation
- Elastic
- Low odor
- Resistant to weathering exposure
- Non-corrosive - Can be overpainted
- Can be sanded
- Lower VOC’s
- Bonds well to a wide variety of substrates
- NSF registered, Proprietary Substances and Nonfood Compounds

Areas of Application

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. Before using on transparent and pigmented materials that are prone to stress cracking, contact the Technical Service Department of Sika Industry at [email protected] This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed to ensure adhesion and material compatibility.

Catalog Link Click Here
PDS Sheet Click Here
Weight (lbs) 0.9560
UOM EA
Brand Sika®
Color Gray
Product Line SikaFlex®
Application Temperature 40 - 105°F (5 - 40°C )
Chemical Base 1-C polyurethane
Cure mechanism Moisture-curing
Density 10.6 lbs/gallon approx.
Open Time 45 min. approx.
Storage 12 months, Cartridges & Unipacs. (storage below 77°F (25°C)) (CQP 016-1)
Tack Free Time 60 min. approx.
Tensile Strength 260 psi approx

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