Sika
Sikaflex 221 One-Component Adhesive Sealant
Sikaflex 221 One-Component Adhesive Sealant
$13.00Limited StockSee Product Details
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SIK-221242 -- 10.3 oz Cartridge - Aluminum GraySIK-221243 -- 10.3 oz Cartridge - BlackSIK-221245 -- 10.3 oz Cartridge - Colonial WhiteSIK-221241 -- 10.3 oz Cartridge - WhiteSIK-221242-24 -- 10.3 oz Cartridge (24 Pack) - Aluminum GraySIK-221243-24 -- 10.3 oz Cartridge (24 Pack) - BlackSIK-221241-24 -- 10.3 oz Cartridge (24 Pack) - WhiteQuantity
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Product Details
Sikaflex 221 bonds well to a wide variety of substrates and is suitable for making permanent, high adhesive strength elastic seals. Use 221 on substrate materials wood, metals, metal primers and paint coatings (2c or 2 part systems), ceramic materials and plastics.
Tech Specs
| Sealant type: Polyurethane | Temperature: -40 to 195 F |
|---|---|
| Time until tack free: 60 min | Full cure time: 60 min to 10 days |
| Tensile Strength: 260 | Hardness: Shore A 40-45 |
| Specific Gravity: 1.27 | Elongation: 500% |
Info & Guides 1-Component Formulation (1C)
Elastic
Low Odor
Resistant to aging and weathering exposure
Non-corrosive
Can be painted over
Can be sanded
Bonds well to a wide variety of substrates
NSF-approved for incidental food contact and potable water.
Sikaflex-221 is a high-quality multi purpose non-sagging 1-component polyurethane sealant that cures on exposure to atmospheric humidity to form a durable elastomer.
Key Features
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Reviews
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Locale
11 to 15 of 16 Reviews
11 – 15 of 16 Reviews
Most Recent
Oxford, OH
5 out of 5 stars.
Great stuff to seal horse trailer roof.
12 years ago
Used it to seal the aluminum seals on the roof of a Sundowner Horse trailer. It worked great. Using a curved piece of metal to shape and grade the calk in places is a big help.
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North Carolina
4 out of 5 stars.
Works as advertised
12 years ago
Used to reseal an aluminum horse trailer and it worked well. Product was easy to use and dried flexible but firm. Time will tell how the product stands up over time but it has already served the purpose
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Tunnel Hill Ga
4 out of 5 stars.
Great Product
14 years ago
*This product was used to fix rear glass window on convertible. *Its Works!!! *Messy, but easily clean up with acetone solvent
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Monroe, NC 28112
5 out of 5 stars.
excellent adhesive caulk; sticks to all
14 years ago
I use this product for a number of high end residential house construction projects. Bonding and waterproofing are its best qualities. It is a ureathane caulk so it is a little messy and any caulk that gets away needs to be cleaned/wiped up immediately to keep from getting onto everything. The product is better for cleanup and smoothing out then older formulas of Sikaflex caulk. Great product. I use a fair amount of it. Jim Zynsky Comfort Green Buildings Monroe, NC 28112
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Sacramento, CA
5 out of 5 stars.
Stuff was good in 1987, still good now
15 years ago
The instruction video that came with my 1987 convertible BMW showed SikaFlex 221 being used. Looked around online and found JD's website. It's easy to apply, it's easy to mold, and it will stay on for over 20 years like the previous application did. Good stuff, and easy to get at JD's.
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1 Ratings-Only Review
11 – 15 of 16 Reviews