Sikaflex-221
Multi-Purpose One Component Polyurethane Sealant/Adhesive
Sikaflex®-221 is a high-quality multi-purpose non-sag 1-c polyurethane sealant/adhesive that cures on exposure to atmospheric humidity to form a durable elastomer. Meets approvals ASTM C920 types. Sikaflex®-221 is tested and classified in accordance with ANSI/UL 723 “Test for Surface Burning Characteristics of Building Materials”.
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
- Highly elastic and durable
- Resistant to aging and weathering exposure
- Non-corrosive
- Can be sanded and over-painted
- NSF registered, Proprietary Substances and Nonfood Compounds (black, gray, and white)
- UL listed for potable water (black, gray, and white)
Shop Sikeflex 221
These Sikaflex®-221 products may be available for online ordering. Most stock orders placed before 5:00 PM E.T. will ship the same day. Please click below to check current inventory.
20 oz. Unipac, white - Part # 221-201
20 oz. Unipac, black - Part # 221-203
20 oz. Unipac, gray - Part # 221-G 20 OZ SSG
13 oz. Unipac, white - Part # 221-400ML WHITE
13 oz. Unipac, aluminum gray - Part # 221-400ML ALUM GRAY
10.3 oz. cartridge, white - Part # 221-W
10.3 oz. cartridge, colonial white -
Part # SIK-221-245
10.3 oz. cartridge, black - Part #221-B
10.3 oz. cartridge, champagne brown - Part #221 CB 300ML
10.3 oz. cartridge, coping stone - Part #221 CS 300ML
4.5 gallon pail, white - Part # 221-W-4.5 GAL
Uncut tip for 221 cartridges - Part # 221-A4006P
Uncut tip for 221 Unipac (sausage pack) - Part # 221-883-970
For more information, please contact your nearest Austin Hardware location.