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Thermal PU (polyurethane) material for covers is a versatile, high-performance option primarily used for premium binding (notebooks, diaries) and, in specialized forms, as durable industrial insulation. It is known for its luxurious leather-like appearance, durability, water resistance, and its ability to change color when heat-stamped (thermo-reactive), offering a two-tone effect for decorative branding.
Key Characteristics & Applications:
- Binding & Packaging: Known for a soft, supple hand that, when embossed with heat, creates a contrasting color change (burnishing). It does not crack or peel, making it a high-quality alternative to traditional leather or vinyl.
- Industrial/Thermal Covers: PU-coated fiberglass fabric offers excellent heat resistance (up to 550°C/1022°F), providing a durable, flexible, and wear-resistant covering for insulation materials.
- Performance Benefits: Offers superior abrasion resistance, flame retardancy (optional), and water/oil resistance, making it suitable for demanding environments.
- Specifications: Commonly available in thicknesses ranging from 0.2mm to 1mm, with varying weights for specific applications (e.g., lightweight PU for notebooks vs. heavy-duty 460-720gsm for industrial covers).
Usage and Processing:
- Heat Burnishing: Optimal results are achieved at 350°F–375°F for 0.5 seconds at 2 bars of pressure, allowing for intricate, dark-contrast designs.
- Processing Techniques: Suitable for hot stamping, screen printing, and foiling, allowing for diverse decorative options.
- Base Materials: Often features a PU coating on a flexible backing, such as polyester or, for high-heat applications, a fiberglass substrate.
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Web results
Polyurethane (PU) Cover Materials
Columbia Finishing Mills
https://columbiafinishingmills.com › Cover Materials
Columbia Finishing Mills
https://columbiafinishingmills.com › Cover Materials
Polyurethane, often referred to as PU, is a versatile cover material that can give the appearance and feel of leather and performs exceptionally to heat ...Read more
People also ask
Is 100% PU real leather?
No, PU leather isn't real leather. It's a synthetic material created to look like real leather, but it doesn't come from animal hide. Instead, it's made by coating fabric with plastic-based polymers to replicate the texture and appearance of leather.Aug 1, 2025
What is PU leather - and why you should avoid!
Manuel-dreesmann
https://www.manuel-dreesmann.com › blogs › information
Manuel-dreesmann
https://www.manuel-dreesmann.com › blogs › information
Is PU plastic or leather?
PU stands for polyurethane, which is a type of plastic. Unlike genuine leather, it is considered vegan because it does not contain any animal skin. There are various types of PU leather available in the market, including bicast leather, which has a polyurethane coating on top of actual leather.
What is PU Leather? The Pros & Cons - ChairOffice
ChairOffice
https://www.chairoffice.co.uk › blog › what-is-pu-leather
ChairOffice
https://www.chairoffice.co.uk › blog › what-is-pu-leather
Web results
460gsm PU Coated Fiberglass Fabric for Thermal ...
heatresistantfabric.com
https://heatresistantfabric.com › products › 460gsm-pu-...
heatresistantfabric.com
https://heatresistantfabric.com › products › 460gsm-pu-...
The PU coating enhances its durability, water resistance, and heat resistance, making it a cost-effective alternative to silicone-coated fiberglass fabric.Read more
Cover Thermal PU Material - RISTA
ristapuleather.com
https://www.ristapuleather.com › cover-thermal-pu-mater...
ristapuleather.com
https://www.ristapuleather.com › cover-thermal-pu-mater...
A classic roller printing design, which is popular for many years. It can be used for Notebook, Stationery, Menu, Business Card, or Cover Package.Read more
Pu Leather
Amazon.com
https://www.amazon.com › pu-leather › k=pu+leather
Amazon.com
https://www.amazon.com › pu-leather › k=pu+leather
Discover high-quality PU leather sheets in a range of colors and thicknesses. Ideal for upholstery, crafts, clothing, and more.
 store rating (11K)30-day returns
PU Coverings: Durable, Versatile, and Stylish
Imago Group
https://imagogroup.com › pu-coverings
Imago Group
https://imagogroup.com › pu-coverings
PU coverings (or polyurethane) are an amazing choice if you're looking to add a stylish touch to your books, journals, or packaging.Read more
PU = polyurethane, aka the secret sauce on the back of your ...
Instagram · rockywoodsfabrics
20+ likes · 7 months ago
Instagram · rockywoodsfabrics
20+ likes · 7 months ago
A waterproof fabric with a PU Coating on the inside face of the fabric. The outer face is fluorocarbon treated for additional water resistance.
An Overview of Polyurethane Fabric - Mitchell Faux Leathers
mitchellfauxleathers.com
https://mitchellfauxleathers.com › viewpoint › 2023/02/03
mitchellfauxleathers.com
https://mitchellfauxleathers.com › viewpoint › 2023/02/03
Feb 3, 2023 — Polyurethane (PU) is a composite material made of: (1) one or more layers of polymer resins joined by urethane links; and (2) a woven or non-woven textile ...Read more
Cover Material Thermo Leather(999+)
Alibaba.com
https://www.alibaba.com › ... › Synthetic Leather
Alibaba.com
https://www.alibaba.com › ... › Synthetic Leather
cover material thermo leather is celebrated for its durability, flexibility, and ease of maintenance, making it a favored choice in various industries, from ...Read more
Polyurethane (PU Leather) & Semi-Urethane Upholstery ...
Decorative Fabrics Direct
https://www.decorativefabricsdirect.com › Urethane-Se...
Decorative Fabrics Direct
https://www.decorativefabricsdirect.com › Urethane-Se...
Polyurethanes and semi polyurethanes offer a wonderful alternative to genuine leathers, yet at a much lower price point.Read more
$7 to $30Free delivery over $19914-day returns
PU Coated Fiberglass Fabric Thermal Insulation High ...
Made-in-China.com
https://njnewfire.en.made-in-china.com › product › Chi...
Made-in-China.com
https://njnewfire.en.made-in-china.com › product › Chi...
Product Name: Polyurethane Coated Fiberglass Fabric Thermal Insulation High Temperature/heat Resistant PU Coating Glass Fiber Cloth in ChinaRead more
· Review by MIC_BUYER