Do you need a specific caulking gun?

No, I used a normal caulking gun which I had at home which I use to caulk windows and doors.

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🛠️ Seal smart, seal fast — don’t let your ducts miss out!

COMPACT POWER KIT - 8.5 oz cartridge size balances portability with job site endurance.
DURABLE AMBER RESIN - Robust, clear curing agent ensures long-lasting, reliable seals.
PRECISION SEAL MASTERY - Achieve airtight duct sealing with professional-grade polyurethane foam.
EXTENDED REACH EFFICIENCY - 24-inch foam strips cover more surface area, reducing application time.
TRUSTED INDUSTRY STANDARD - Preferred by pros for superior performance in HVAC and building projects.

The American Polywater FST-250KIT is a professional-grade polyurethane foam duct sealant kit featuring an 8.5 oz cartridge and 24-inch foam damming strips. Its amber resin clear curing agent delivers fast, durable seals ideal for HVAC and building applications, combining efficiency and reliability in one compact package.

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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Perfect platform for hard-to-find items. Delivery was prompt.

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Material	Polyurethane Foam
Brand	American Polywater
Style	Compact
Item Weight	8.5 Ounces
Compatible Material	Foam
Item Form	Foam
Color	Amber, Clear
Package Dimensions	12.44 x 9.45 x 4.29 inches
Item Weight	8.5 ounces
Manufacturer	American Polywater
ASIN	B008KNSLZA
Country of Origin	USA
Item model number	FST-250KIT
Is Discontinued By Manufacturer	No
Date First Available	April 10, 2015

American Polywater FST-250KIT Polyurethane Foam Duct Sealant Kit 8.5 oz Cartridge Amber Resin Clear Curing Agent

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