Foam sealant factory in China: Polyurethane (PU) foam sealant is a versatile construction and industrial material widely valued for its ability to expand, bond, insulate, and seal with high efficiency. Produced by reacting polyols and isocyanates, PU foam sealant is supplied as a ready-to-use product that cures upon contact with moisture in the air. Once applied, it expands to fill gaps, cracks, and voids, creating an airtight and watertight seal that enhances structural integrity and energy efficiency. Its lightweight nature combined with strong adhesion allows it to bond effectively to materials such as concrete, brick, metal, wood, and many plastics. PU foam sealant is also known for its excellent thermal insulation, sound dampening, and resistance to aging, moisture, and temperature variations. These properties make it indispensable in modern construction and manufacturing processes. Manufacturers like Shuode focus on consistent formulation and quality control to ensure stable expansion, uniform cell structure, and long-term performance. As industries continue to demand faster installation, reduced energy loss, and durable sealing solutions, PU foam sealant remains a reliable and cost-effective material across a wide range of applications. See a lot more info on foam sealant supplier.
Multi Purpose Pu Foam is our FA series, 70~80% closed cell,which is very suitable for family spare and can meet all furniture for family use.Both sofas and walls can be filled with this series.It has good filling capacities and CFC-free propellants ,environmentally friendly.Just four moulded foams can support the weight of an adult without damaging or altering the internal structure.This line is the best priced and is one of our hot sellers. Under normal conditions, there are 300ml, 500ml and 750ml, and the maximum capacity can be 950ml. Expandable Pu Foam is specially developed for wood. Suitable for wooden doors and Windows or wooden buildings. It is more popular in the Japanese and Korean markets.WD series have good adhesion to wood structure, wood, PVC, aluminum and other substrates.It provides a simple, economical way to seal gaps around Windows and door frames.Expanding just enough to fill gaps without bowing or bendingthe frame. At the same time, it can provide greater insulation value than cracks in fiberglass or caulking.
PU (Polyurethane) foam sealant is widely recognized as a key material for improving energy efficiency across multiple industries. Its ability to expand and fully fill gaps, cracks, and voids makes it highly effective in preventing unwanted air leakage. In buildings, uncontrolled air movement is one of the main causes of energy loss, and PU foam sealant directly addresses this issue by creating an airtight barrier. Once cured, the foam forms a stable structure with low thermal conductivity, reducing heat transfer between indoor and outdoor environments. This helps lower heating and cooling demands, resulting in reduced energy consumption and operating costs. Beyond construction, PU foam sealant is also used in appliances, industrial equipment, and transportation systems where temperature control is critical. Its long-term dimensional stability ensures that the seal remains intact over time without shrinking or cracking. Manufacturers such as Shuode focus on producing foam sealants with consistent expansion rates and uniform cell structures to maximize insulation performance. As global industries continue to emphasize energy conservation and sustainability, PU foam sealant remains an effective and economical solution.
The versatility of PU sealants makes them popular in construction. They absorb structural movement and support expansion joints while staying waterproof. They prevent leaks in window and curtain wall systems with perimeter sealing. It protects roofing and flooring against moisture and cracking for long-term stability. Energy Efficiency and Insulation – PU Foam Sealant repairs gaps efficiently, blocking air passages, and providing insulation. Automotive and Transportation – Used to put in windshields, seal seams in the body, and connect panels. PU sealants can handle variations in temperature, water, and vibration. Industrial and Marine – HVAC, shipbuilding, and tank sealing require moisture-resistant PU solutions. Acoustic and Vibration Control – PU foams and elastomeric sealants reduce sound transfer in walls and equipment. Discover even more info at https://www.shuodeadhesive.com/.
PU Foam Sealant in Renovation and Retrofitting Projects Renovation and retrofitting projects often involve irregular structures and existing gaps, making PU foam sealant especially valuable. It can be easily applied to seal cracks, voids, and openings in older buildings where traditional materials may be difficult to use. The foam adapts to uneven surfaces, restoring airtightness and improving insulation without major structural changes. This makes it an effective solution for upgrading energy efficiency in residential and commercial renovations. PU foam sealant is also used to improve sound insulation and reduce drafts in aging properties. Its quick curing minimizes disruption to occupants and allows projects to be completed efficiently. The long-term stability of the foam ensures that performance improvements are maintained over time. As governments and property owners increasingly focus on upgrading existing buildings rather than new construction, PU foam sealant provides a practical, cost-effective way to enhance comfort, efficiency, and durability in retrofit applications.