09-16-2017, 05:08 PM
Sikaflex-221
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”.
USE
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
COLOR
White, Black, Aluminum gray, Colonial White
![[Image: image_show.php?item_id=12565&type=super&...8e7ed02335]](http://www.aquaintl.com/image_show.php?item_id=12565&type=super&vc=ca69b00c965e37461d48448e7ed02335)
Good for general construction and sealing
that roof vent will never leak again
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”.
USE
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 overpainted
- NSF registered, Proprietary Substances and Nonfood Compounds (black, gray, and white)
- UL listed for potable water (black, gray, and white)
COLOR
White, Black, Aluminum gray, Colonial White
Good for general construction and sealing
that roof vent will never leak again
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