China OEM/ODM PU Foam Sealant - High-Quality, Economical Sealant from Leading Suppliers and Factory

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China OEM/ODM PU Foam Sealant - High-Quality, Economical Sealant from Leading Suppliers and Factory

Discover our high-quality PU foam sealant, a one-component, economical solution with excellent performance, designed specifically for various construction applications. Manufactured in China, our PU foam sealant comes with a convenient plastic adapter head, making it compatible with both foam application guns and straws. This versatile product is perfect for suppliers and contractors seeking reliable sealing, bonding, and insulation solutions.

Our PU foam sealant effectively seals leaks, fills gaps, and offers thermal and sound insulation. It is particularly ideal for waterproofing and sealing between plastic steel or aluminum alloy doors, windows, and walls. The cured foam provides exceptional caulking, bonding, and insulation for wide joints, gaps, and cracks. With its outstanding properties, this sealant is perfect for heat preservation, cold resistance, sound insulation, and moisture resistance. Trust in our factory to deliver the best PU foam sealant for your construction needs.

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Product Description

Our PU foam sealant adopts front-end foam filling technology. This innovative design not only improves the efficiency of glue application, but also effectively reduces the generation of bubbles, ensuring a more uniform bonding effect. Whether it is PVC, masonry, brick, masonry, glass, steel, aluminum, wood and other substrates (except PE and Teflon), this glue can provide strong bonding ability.

Its fast curing properties enable it to perform well in a variety of environments. Whether in a humid environment or at high temperatures, it can maintain a strong bond to ensure that your work will stand the test of time.

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Front-End Foam Filling Technology Improves application efficiency and reduces bubble generation for a more uniform bonding effect.

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Ultra-Fast Surface Drying No long wait times — quickly proceed with subsequent operations to boost work efficiency.

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Strong Bonding Ability Compatible with PVC, masonry, brick, glass, steel, aluminum, wood and more (except PE and Teflon).

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Fast Curing in Any Environment Performs reliably in humid or high-temperature environments, standing the test of time.

Package Options

📦 900ml

📦 500ml

📦 300ml

Parameter Specifications

Grade	Main Materials	Weight/Volume	EXW Price (USD)
A+	86%	300ml / 300g	$0.71
B	66%		$0.63
C	42%		$0.59
D	38%		$0.57

Frequently Asked Questions

What substrates is this PU foam sealant compatible with?

This sealant bonds strongly to a wide range of substrates including PVC, masonry, brick, glass, steel, aluminum, and wood. Please note it is not suitable for use on PE (polyethylene) or Teflon surfaces.

What makes the front-end foam filling technology beneficial?

The front-end foam filling technology improves the efficiency of glue application while significantly reducing bubble formation. This results in a more uniform and reliable bonding effect compared to conventional sealants.

How quickly does the sealant dry and cure?

This sealant features an ultra-fast surface drying time, allowing you to proceed with subsequent operations quickly without lengthy waiting periods. Its fast curing properties also ensure a durable bond is achieved in a short time.

Can this sealant be used in humid or high-temperature environments?

Yes. The PU foam sealant is designed to perform reliably in a variety of environments, including humid conditions and high temperatures. It maintains a strong bond under these challenging conditions to ensure long-lasting results.

What package sizes are available and what is the difference between grades?

The sealant is available in 300ml, 500ml, and 900ml sizes. The product comes in four grades (A+, B, C, D) differentiated by the percentage of main materials — ranging from 86% for Grade A+ down to 38% for Grade D — with pricing adjusted accordingly.

Is this sealant suitable for both home DIY projects and professional use?

Absolutely. Thanks to its ease of application, ultra-fast drying, and strong bonding capability, this PU foam sealant is an excellent choice for both home DIY enthusiasts and professional craftsmen or contractors.