Your Professional Poron Foam Manufacturer!
STK Tape was founded in 1998 and has been deeply rooted in the adhesive tape industry for over two decades. We specialize in high-performance adhesive solutions for electronics, LED lighting, automotive, medical, energy, aerospace, home appliances, textile, and industrial manufacturing sectors. With continuous innovation and a customer-focused mindset, we have become a trusted partner globally.Our factories integrate R&D, production, testing, and customization, supporting large-scale OEM/ODM projects with fast delivery and flexible capacity.
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![PORON® 4790-92 Polyurethane Foam | Low-Energy Impact Protection And Sealing Solution]()
PORON® 4790-92 Polyurethane Foam | Low-Energy Impact Protection And Sealing SolutionPORON® 4790-92 is a premium open-cell polyurethane foam engineered to provide excellent protection against low-energy impacts while offering superior conformability and slow rebound characteristics. -
![Poron 4701-40 PU Foam | Electrical Insulation & Cushioning Material | High Performance Shock Absorbing Foam]()
Poron 4701-40 PU Foam | Electrical Insulation & Cushioning Material | High Performance ...Poron® 4701-40 polyurethane foam is a high-performance microcellular material offering excellent compression set resistance, dimensional stability, and electrical insulation properties. It provides
Why Choose Us?
Advanced Equipment
STK Tape owns four modern production bases covering over 600,000 square meters, equipped with advanced clean rooms, high-precision coating lines, slitting machines, and state-of-the-art die-cutting facilities.
OEM/ODM
We provide a comprehensive portfolio of high-performance adhesive tape products and customized solutions to meet diverse industrial needs. Our offerings include world-renowned brands such as 3M, Nitto, and TESA original tapes, as well as precision-converted solutions tailored to customer requirements.
Production Market
STK exports to over 80 countries, and our products are widely recognized by global electronics, automotive, medical, and LED lighting manufacturers. We serve both multinational corporations and emerging local brands.
Our Certifications
We are certified with ISO 9001 and ISO 14001, ensuring that our products consistently meet global quality management and environmental protection standards.In addition, our products comply with major international certifications including REACH, RoHS, and UL, providing customers with safe, reliable, and environmentally friendly solutions for diverse industrial applications.
Product Parameters
|
Product Name |
Poron 4701-40 PU Foam Tape |
|
Carrier Material |
PU Foam |
|
Color |
Black |
|
Length(M) |
Customizable |
|
Width(mm) |
Customizable |
|
Thickness |
1.4 ~ 3 mm |
|
Density |
240 |
|
Temperature Range |
-40 to 121degree |
Advantages of Poron Foam
Low compression set
PORON cellular urethane has superior resistance to taking a compression set as compared to neoprene sponge or polyethylene foam. Less than 2% at 73°F and less than 10% at 158°F makes PORON an ideal gasketing material for many indoor enclosure applications where dust, light and incidental splash sealing are required.
Energy absorbing
PORON's ability to absorb mechanical shock vibration combined with its low compression set make it an ideal material for shock isolation of battery compartments and sensitive electronics in hand-held devices.
Consistent microcellular structure
Fine and consistent open cells make PORON microcellular urethane an ideal dust gasket material, suitable for many cleanroom applications.
Adhesive backings
PORON readily accepts most of pressure sensitive adhesive offerings. Since PORON does not contain any plasticizers, it does not reduce adhesive shelf-life. The integral skin surface provides a clean, readily bonded surface.
Thickness options
PORON is available in a wide range of thicknesses. Offers bonded layers to achieve non-standard thicknesses and stacked/bonded assemblies.
Smooth skin
Most grades of PORON foam are manufactured with a smooth skin on both sides. The supported products have a 1 mil PET film bonded permanently to one side.
Applications of Poron Foam
Portable electronics
High performance urethanes to seal out water and dust, absorb impact, and provide long-term gap filling in handheld device applications.
Industrial
Designers select PORON Urethanes to improve efficiency and performance, protect equipment, and increase reliability under tough industrial conditions.
Automotive industry
PORON foam is a key component in seals that prevent dust, moisture, and air from entering vehicle systems, as well as in soundproofing materials used for automotive interiors.
Medical field
PORON foam is widely used in medical devices and products such as prosthetics and orthotics, which require soft cushioning and support, due to its durability and comfort.
PORON 4701-15-06 (SOFT SEAL)
The PORON soft seal series offers reliable and durable materials to use in thinner designs. It's easy to process, good for long-term protection, and good for dust sealing.
PORON POLYURETHANE 4701-30 SERIES
The impact foam PORON XRD is part of the 4701-30 series and lightweight enough to fit into apparel. This series encompasses both PORON 4701-30-20 and PORON 4701-30-25.
PORON® AQUAPRO™ 4701-37 SERIES
This series was designed to protect components from potential water damage and to seal contained water. The PORON AquaPro Series uses PORON's expansive, space-filling properties and bolsters them with water-resistant capabilities. The PORON® AquaPro™ Series includes 4701-37 Thin, 4701-37-14, 4701-37TS9-19, and 4701-37TS9-25.
PORON 4701-40 POLYURETHANE
This polyurethane foam series is composed of the second softest PORON foams. Some of its softness is traded for higher tensile strength than the 4701-30 series. The PORON 4701-40 Polyurethane series encompasses 4701-40-15, 4701-40-20, and 4701-40-30.
PORON AQUAPRO™ CLOSED-CELL VACUUM SEAL 4701-41
This PORON foam product line differs from everything else on this page because it is the only closed-cell foam. They're intended to be vacuum-compressed and create a solid, airtight seal upon compression. This series includes PORON AquaPro™ 4701-41-15, 4701-41-20, and 4701-41-30.
PORON 4701-50 POLYURETHANE
The PORON 4701-50 line of polyurethane foams is firm. These foams are made for high-impact, high-energy gaskets. They have a high compression set deflection rating and are denser than other PORON foams.
PORON 4701-60 POLYURETHANE
The PORON 4701-60 is a very firm series of PORON foam and one of the most durable PORON products. It can deflect waves and vibrations for an extended period without losing shape or stiffness. It also resists tearing, corrosion, mildew, and bacteria. The series encompasses 4701-60-15, 4701-60-20, and 4701-60-25.
PORON V-0 FOAM
PORON V-0 foam is both HBF and UL94-V-0 certified for passenger safety.
PORON SHOCK SEAL™ FAMILY
The PORON Shock Seal™ Family of foams includes 4790-79-09, 4790-79-12, 4790-79-15, and 4790-79-20. Rogers Corporation sometimes categorizes these foams as "display back pad foam." It is also flexible. The combination of firmness and flexibility allows it to absorb impacts precisely, even in a small space.
PORON 4790-92 POLYURETHANE FOAM
The PORON 4790-92 series is made of extra-soft foam. It rebounds slowly after any pressure is released.
PORON EVEXTEND® 4701-43
The PORON EVExtend® is a material intended to cushion the batteries of electric vehicles. Its most unique property is its flatter compression force deflection (CFD) curve.
Packaging and Shipping
Packaging
Inner packaging is plastic bags, outer packaging is cartons, and can also be packaged according to customer requirements.
Shipping
Sea or air freight according to your requirements.
FAQ
We're professional poron foam manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized poron foam from our factory.
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