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SIKA

Sikaflex-221 Multi-Purpose Polyurethane Sealant/Adhesive, 10.1 fl oz, Black – Permanent Elastic Seal, Sandable & Paintable, Non-Corrosive, Bonds to Metal, Plastics & More

✅ In stock
D
Grade
😐 Weak Deal
31.91/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$13.40
Listed $1.33
Analysis Confidence 90%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 19, 2026 9:39 PM · Prices & availability subject to change

Is This a Good Price on Amazon?

😐 Weak Deal
  • 😐Verdict: Weak Deal. Marginal discount. Prices may drop further soon.
  • 💰The price is modestly below what this product ordinarily sells for.
  • 📉Better-priced windows have occurred before, though not frequently — today's price is reasonably competitive.
  • ➡️Pricing has held fairly steady, with no strong push in either direction.

How We Scored This Deal

Price Competitiveness 5.33/28
Recent Value 2.09/22
Market Standing 15.48/20
Deal Strength 5/20
Momentum 4/10

📝 Product Overview

🏪 Sold by GlueUS
📦 Fulfillment Fulfilled by Amazon
🚚 Shipping Free Shipping

Product Details

VERSATILITY AND QUALITY IN ONE - Sometimes simply called Sika 221 black, this one-component urethane caulk bonds to a range of substrates, including metals, plastics, and metal primers and coatings
AGE RESISTANT - Formulated to resist the effects of aging to better perform at peak capacity no matter the conditions. Also resists elements such as seawater, diluted acids, and caustic solutions
READY TO USE - The Sikaflex black sealant comes in a handy cartridge that fits easily on an electric, pneumatic or manual application gun, making accurate placement of adhesive paste quick and easy
SAFE AND EFFECTIVE - Approved by the NSF for use in both drinking water systems and food production operations, so you can rest easy knowing there's no harmful level of chemicals
PERFECT FOR INTERNAL SEALS AND BONDING - Use it for permanent seals that you can rely on. The paste also bonds to ceramic materials and cures quickly upon exposure to atmospheric moisture

⚙️ Specifications

Color
Black
Brand
SIKA
Item Weight
10.1 ounces
Liquid Volume
10.1 fluid ounces
Full Cure Time
3 hours
Item Form
Paste
Surface Recommendation
Metal, Wood, Glass
Water Resistance Level
Waterproof
Number of Items
1
Manufacturer
SIKA
Unit Count
10.1 Fluid Ounces
D
$13.40
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