Search  for anything...
SIKA

Sika Sikaflex-221, White, multi-purpose sealant/adhesive, polyurethane fast curing sealant, 10.1 fl. oz Cartridge

    • Based on 944 reviews
Condition: New
Checking for product changes
$13.34 Why this price?

Buy Now, Pay Later

As low as $3 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Jun 6
Order within 10 hours and 42 minutes
Available payment plans shown during checkout

Recently Viewed

Color: White


Features

  • High-quality, multi-purpose sealant designed to create permanent elastic seals of high adhesive strength
  • PERFORMANCE: Ideal for motorhome, van, RV and trailers. Elastic, non-corrosive. Can be sanded and over-painted
  • SUPPORTS: Use on wood, metals, metal primers and paint coatings (2-C systems), ceramic materials and plastics
  • DURABILITY: Resistant to ageing and weathering exposure
  • AVAILABLE COLOR: Sikaflex-221 is available in 3 colours
  • SikaFlex-221 is the most well known brand of one component polyurethane sealant/adhesive in the world
  • Our workhorse
  • This fast curing product provides permanent elastic adhesion to a number of surfaces with excellent cut and tear resistance
  • Considered by many to be the ultimate choice in truck, trailer, RV and bus manufacturing
  • SikaFlex-221 is weather resistant, sandable, paintable and NSF approved for potable water and incidental food contact 221 - 10,14 oz. WHITE

Description

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. 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.


Manufacturer: ‎SIKA


Brand: ‎SIKA


Model: ‎017-90891


Item Weight: ‎10.1 ounces


Product Dimensions: ‎11.5 x 2 x 11.5 inches


Item model number: ‎90891


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎90891


Date First Available: February 28, 2012


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • expired Feb 2018
Color: Black
Review Image by D. Lombardo D. Lombardo
1 star because when using sealants the user often does not realized till its too late. In this case it was impossible to extract and I had to delay my project. I took a look and sure enough expired almost a year to the day. In other cases it might have caused a failure down the road making matters much worse, causing de-bonding of materials or water intrusion. Make sure the sealants and adhesives you sell are up to date!. Update: return request prompted seller to send out a fresh tube. Which expires in a month. Thanks a lot. If I could give another 1 star I would. Don’t sell old crap on Amazon. ... show more
Reviewed in the United States on January 24, 2019 by D. Lombardo D. Lombardo
    • This is my “go to” for construction.
Color: White
I have used this in all applications of wood construction. Just be aware...the two surfaces you put together with this are bonded into eternity.....be sure you really want that cause it is never coming apart again. I have to put a shelf into a fiberglass head liner. Obviously, I could not drive screws. I bonded 2x3 boards directly to the fiberglass. Then screwed to shelf into those boards. The shelf hangs from those boards. That was 4 years ago....nothing has moved at all. This is in my RV, bouncing up and down on some rough roads with the shelf fully loaded.....it is still as solid as the day I put it up ... show more
Reviewed in the United States on April 3, 2021 by Katie33kate
    • Good sealant
Color: Black
Initial impressions are that this is going to hold up better than silicone. Time will tell. I like the fact that it will cure even at very low temperatures, though it does cure more slowly. For storage of the unused amount, wrap the tip of the cartridge with cellophane and store the cartridge in the fridge. Keeps for months without hardening! Note: this urethane clings to your skin like nothing else -- it wipes off easy and doesn't feel sticky, but your fingers will be black for a week. Guaranteed. Nothing scrubs it off except time. ... show more
Reviewed in the United States on January 3, 2019 by Ragnar
    • Re-caulk the roof of my Airstream
Color: Aluminum Gray
Review Image by T. MANCHESTER T. MANCHESTER
Review Image by T. MANCHESTER T. MANCHESTER
Review Image by T. MANCHESTER T. MANCHESTER
I made the decision to replace the bedroom vent with a Fantastic-fan. While up there, I noticed how horrible all of 2003/original caulk was. I purchased this SIKA for the rain/water channel running each side of the camper. I bought Dicor 501 for around the Fans, TV and Radio antennas. (not an expert just a regular Joe), The first tube had some damage so it was returned and quickly replacement (thank you Amazon). The next tube was perfect and ready for use. I will say, this is a little harder to use than the Dicor but I also believe they are two different products for two different uses. You better have strong forearms and grip b/c this stuff comes out slower and stiffer :) as a result it will stay where you put it and wont self level. Clean up wasn't that bad but my clothing might be another story. (Would I buy it again....absolutely) ... show more
Reviewed in the United States on March 16, 2021 by T. MANCHESTER T. MANCHESTER
    • This is GREAT sealant/adhesive!
Color: White
I use this chaulk on commercial trailers and it works better than you can imagine! My commercial food trucks are exposed to constant harsh conditions. This stuff has great adhesion to both bare metal surfaces and painted metal surfaces. Seals better than anything you can buy at you local big box store. Can be painted and doesn't crack or shrink in any way! I think next time I install windows I'm gonna use this superior sealant. ... show more
Reviewed in the United States on March 2, 2020 by Corporal Clegg
    • Works for Motor Mounts
Color: Black
Made a new motor mount for my 1985 Toyota MR2 (AW11) with this stuff. All I had to do was cut out the old rubber and burn the remnants off with a torch, then tape up the one side, place the metal core in the middle, and pour this out of a caulk gun into the empty space. It was still soft after 24 hours, so I let it cure for a week. It got firmer so I put it on my car. It's held up very well as a transmission mount, so I used it to fill in the extra gaps on my other motor mounts to stiffen them up a bit. So far it's worked out great, and I feel much better throttle response thanks to the engine and transmission not tilting around. I'd use this product again for all sorts of purposes where I need something that adheres and is soft enough for flexibility but tough enough not to crack or break. Overall I'm very satisfied with Sikaflex 221! ... show more
Reviewed in the United States on March 24, 2017 by Jeff
    • Stays exactly where you need it.
Color: White
This was exactly what I needed for my RV. I didn’t buy the self leveling because it is a lot thinner. This stuck well to my vertical and underneath areas without dripping. In my thoughts the self leveling just makes it look pretty in top where you won’t see the fingerprints as much. It’s golfing well and only wished that last person would have used it. I like 50year silicone but it comes right off the rubber and other smooth surfaces. Spent 4 hours pulling The old stuff off. ... show more
Reviewed in the United States on September 2, 2020 by Shawn Roy
    • SIKAFLEX-221
Color: White
I WAS INITIALLY WAS CONCERNED WHEN I RECEIVED THE SIKAFLEX-221 AS THE EXPIRATION DATE ON THE TUBE WAS WITHIN 3 WEEKS. I DECIDED TO CONTINUE WITH THE SOLAR PANEL INSTALL AND TAKE MY CHANCES. WHEN I OPENED THE TUBE, THE PRODUCT WAS FINE AND ADHERED JUST FINE. I HAVE A FIBERGLASS PICKUP CAMPER AND I USED 3M VHB TAPE TO INSTALL RENOGY MOUNTING BRACKETS WHICH REQUIRED THE USE OF THE SIKAFLEX TO PROTECT THE VHB TAPE FROM THE ELEMENTS. SO FAR SO GOOD! ... show more
Reviewed in the United States on May 25, 2019 by Elkhrn Hiker

Can't find a product?

Find it on Amazon first, then paste the link below.