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Description
Sika Sikaflex 221 Multi-Purpose Polyurethane Sealant/Adhesive - 10.3oz(300ml) Cartridge - Black [90893]Sikaflex 221 Multi Purpose Polyurethane Sealant Adhesive 10. 3oz(300ml) Cartridge Black 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. Uses: Sikaflex 221 bonds well to a wide
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4.1 ★★★★★
Based on 1020 reviews
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Product Reviews
★★★★★ 5
Value purchase
This item arrived well packaged, intact with timely delivery. I am satisfied with the product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2022
★★★★★ 4
works
i feel like the hole isn’t as small as before so less pressure now
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Reviewed in the United States on October 11, 2024
★★★★★ 5
Effective
Works well
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Reviewed in the United States on February 26, 2023
★★★★★ 5
Works.
Fits.
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Reviewed in the United States on December 11, 2022
★★★★★ 5
Great Long-Lasting Replacement Heads for BURST Toothbrush
Color: Rose Gold, Color: Rose Gold
I really like these replacement toothbrush heads for my BURST electric toothbrush. They seem to last a very long time compared to many other toothbrush heads I have tried. The bristles hold up really well and do not get worn down or frayed quickly, even with regular use. While I still try to replace my toothbrush heads routinely for hygiene purposes, I honestly feel like these could easily last for several months if needed.
The replacement heads attach perfectly to the toothbrush and feel very secure once connected. I also appreciated that they offer them in pink because it matches my toothbrush perfectly and adds a fun touch. The price also feels pretty reasonable for a three-pack considering the quality and durability of the heads themselves.
My only small complaint is that they are made of plastic, which I personally do not love from an environmental standpoint. I also am still undecided about the black bristles because it can make it harder to tell if the toothbrush is fully clean after use. Other than that, the product arrived exactly as described and pictured, and overall I think these are excellent replacement heads for anyone using a BURST toothbrush.
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Reviewed in the United States on May 24, 2026
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