








🔗 Seal it strong, seal it smart – the pro’s choice for lasting bonds!
Sikaflex 221 is a professional-grade, multi-purpose polyurethane adhesive sealant that offers a 45-minute workable open time and cures into a permanently elastic, sandable, and paintable seal. It bonds strongly to diverse materials including metals, plastics, and ceramics, and is NSF-approved for incidental food contact, making it ideal for durable, versatile repairs and sealing tasks.








| ASIN | B00DUX6PY4 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 3,477 in DIY & Tools ( See Top 100 in DIY & Tools ) 76 in Sealers |
| Colour | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (615) |
| Date First Available | 28 Feb. 2015 |
| Included components | 1x Cartridge |
| Item Package Quantity | 1 |
| Item Weight | 0.44 g |
| Item model number | 221 |
| Manufacturer | Sika Everbuild |
| Material | Polyurethane |
| Part number | SIKAFLEX221/40 |
| Product Dimensions | 5 x 5 x 23 cm; 0.44 g |
| Special Features | Strong |
| Style | Compact |
U**N
Strong and good quality
used to joint my spoiler onto a Tiguan, works perfectly and still on very solid
P**Y
strong sticky and long lasting
This is advertised as a strong adhesive sealant and that's exactly what it is. I first used this for work as an adhesive to stick woven polyethylene slabs to an outer polypropylene shell. Both plastics had to be surface activated but after that the sikaflex stuck them so tight they couldn't be pulled apart. I've since used it to stick door seals to my Land Rover and to seal a leak in the roof. This is fantastic stuff, I've now always got some for those jobs where I don't trust ordinary sealant. The only downside is that it doesn't last very long (goes off in the tube) once opened compared to ordinary bathroom silicone. A note of warning- don't use this if you anticipate wanting to undo the thing quite soon.
S**E
Sticks everything
Awesome product - It sticks and seals all stuff together. Especially useful for a windscreen seal that was becoming detached.
B**.
Initial impression is good.
Good, only time will tell of it's longevity.
B**C
The best sealant for automotive use
This stuff is excellent quality, seals better than any other product I have used, I very good for attaching body panels and spoilers etc to cars, easy to use and does exactly what it's made for.
A**Y
Amazing stuff for our campervan conversion
We have used so much of this in our self built campervan build. I recommend warming it up in warm water to make it a little easier to pump out. Also recommend a heavy duty caulk gun. It all makes the job a little easier and tidier. We have no problems with leakage from the container. The product itself is incredible. We have used many of the sikaflex products applying side pods, skylight, fan, windows. Brilliant stuff. It’s worth the money.
T**Y
Good product
Always an exulant adhesive, very stong and will always use it but a little expensive, so shop around for best price
P**.
Does the job very well
Does the job very well
C**N
Buon prodotto. Consegna rapida
P**O
Prodotto di buona qualità, soddisfatto
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