{"id":1051,"date":"2025-12-03T04:06:19","date_gmt":"2025-12-03T04:06:19","guid":{"rendered":"https:\/\/welleltron.com\/?post_type=product&p=1051"},"modified":"2025-12-26T07:52:50","modified_gmt":"2025-12-26T07:52:50","slug":"pu-sponge-sheet","status":"publish","type":"product","link":"https:\/\/welleltron.com\/es\/sponge-roller\/pu-sponge-sheet\/pu-sponge-sheet\/","title":{"rendered":"PU Sponge Sheet"},"content":{"rendered":"

1.PU Sponge Sheet Overview<\/h2>\n

PU Sponge Sheet<\/strong>, also known as a Polyurethane Sponge Sheet<\/strong>, is a versatile and high-performance material widely used in packaging, cleaning, filtration, sealing, cushioning, and industrial processing. Manufactured from PU foam material<\/strong>, this sponge provides excellent elasticity, durability, and structural stability. With customizable porosity<\/strong>, density (PU foam)<\/strong>, and cell structure, PU sponge sheets meet the diverse needs of consumer goods and industrial applications.<\/p>\n

2. Material and Physical Characteristics<\/h2>\n

A <\/span>PU foam material<\/span><\/b> is created through the reaction of polyols and isocyanates.<\/span> The resulting structure, PU sponge, dictates its final use:<\/p>\n

A. Cell Structure (Porosity)<\/h3>\n

The defining feature of PU sponge foam<\/b> is its internal structure, which determines its primary function:<\/p>\n

    \n
  • \n

    Open Cell PU Foam:<\/span><\/b> The internal cell walls are broken, allowing air and liquids to pass through easily.<\/span> This high <\/span>Porosity<\/span> makes the material ideal for <\/span>filtration<\/span> and <\/span>sound absorption<\/span>.<\/span><\/p>\n<\/li>\n

  • \n

    Closed Cell PU Foam:<\/span><\/b> The internal cells are fully sealed and separated.<\/span>This structure prevents the passage of air and water, making it suitable for Sealing Foam and flotation applications.<\/p>\n<\/li>\n<\/ul>\n

    B. Physical Properties<\/h3>\n

    Key specifications for sourcing PU Foam Sheets<\/b> include:<\/p>\n

      \n
    • \n

      Density (PU Foam):<\/b> Measured in kilograms per cubic meter (kg\/m\u00b3<\/span>). High Density PU Foam is firmer and offers better load-bearing capacity (e.g., in seating), while low density foam is softer (e.g., Comfort Foam).<\/p>\n<\/li>\n

    • \n

      Flexibility:<\/span><\/b> Most <\/span>PU sponge<\/span> used in sheets is <\/span>Flexible PU Foam<\/span>, offering high elasticity and compression.<\/span><\/p>\n<\/li>\n

    • \n

      Compression Set:<\/span><\/b> Measures the material’s ability to return to its original thickness after being compressed for a long period.<\/span> A low compression set is vital for reliable <\/span>gasketing<\/span> materials.<\/span><\/p>\n<\/li>\n<\/ul>\n

      3. Applications and Uses<\/span><\/h2>\n

      The versatility of polyurethane pu sponge<\/b> allows it to replace materials like Foam Rubber in many scenarios:<\/p>\n\n\n\n\n\n\n\n\n\n
      Application Sector<\/strong><\/td>\nKey Function<\/strong><\/td>\nProducts and Uses<\/strong><\/td>\n<\/tr>\n<\/thead>\n
      Sealing & Gasketing<\/b><\/span><\/td>\nSealing Foam<\/b> (often Closed Cell PU Foam<\/b>)<\/span><\/td>\nUsed in automotive and electronic enclosures to prevent dust and moisture ingress. Available as Adhesive Backed Foam<\/b> for easy assembly.<\/span><\/td>\n<\/tr>\n
      Filtration<\/b><\/span><\/td>\nFilter Foam<\/b> (High Porosity<\/b> Open Cell<\/b>)<\/span><\/td>\nAir conditioning filters, vacuum cleaner filters, and specialized fluid filters. The open-cell structure traps particles effectively.<\/span><\/td>\n<\/tr>\n
      Cushioning & Packaging<\/b><\/span><\/td>\nShock Absorption<\/b> \/ Comfort Foam<\/b><\/span><\/td>\nProtective lining in packaging, furniture seating, bedding, and pu sponge foam<\/b> inserts for electronics.<\/span><\/td>\n<\/tr>\n
      Acoustics<\/b><\/span><\/td>\nSound Absorbing Foam<\/b> (Open Cell)<\/span><\/td>\nSound insulation panels, microphone windscreens, and noise dampening in machinery (e.g., using PU Foam Rolls<\/b>).<\/span><\/td>\n<\/tr>\n
      Cleaning<\/b><\/span><\/td>\nPU Cleaning Sponge<\/b><\/span><\/td>\nIndustrial and household scrubbing pads and applicators due to its absorbent and durable structure.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      4. Purchasing and Manufacturing<\/h3>\n

      When sourcing Polyurethane Foam Sheet<\/b>, buyers often look for specific commercial terms:<\/p>\n

        \n
      • \n

        Product Form:<\/b> Available as large PU Foam Rolls or smaller, custom-sized pu foam sheet.<\/p>\n<\/li>\n

      • \n

        Sourcing:<\/b> Buyers frequently search for Wholesale PU Foam suppliers or ask for the pu foam sheet price list and pu foam sheet price.<\/p>\n<\/li>\n

      • \n

        Manufacturing:<\/b> Foam Converter<\/b> companies specialize in cutting, laminating, and shaping the foam using processes like Sponge Extrusion or die-cutting to create final parts.<\/p>\n<\/li>\n<\/ul>\n

        To purchase this material, one might search to <\/span>Buy Polyurethane Foam<\/span><\/b> specifying the required <\/span>pu foam sheet size<\/span> and <\/span>Density (PU Foam)<\/span>.<\/span><\/p>\n

        5.Packaging & Delivery<\/h2>\n\n\n\n
        Selling Units<\/td>\nPiece\/Pieces<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"

        PU Sponge Sheet is a versatile polymer material that is essential in many industries. They possess excellent elasticity, durability, and structural stability.<\/p>\n

        Shape\uff1a<\/strong>sheet
        \nColor\uff1a<\/strong>white
        \nSize\uff1a<\/strong>350*80*6mm\/70*40*6mm(Customizable)<\/p>","protected":false},"featured_media":1136,"template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"product_brand":[],"product_cat":[59,23],"product_tag":[],"class_list":{"0":"post-1051","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-pu-sponge-sheet","7":"product_cat-sponge-roller","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple","13":"entry","14":"content-bg","15":"loop-entry"},"taxonomy_info":{"product_cat":[{"value":59,"label":"PU Sponge Sheet"},{"value":23,"label":"Sponge Roller"}]},"featured_image_src_large":["https:\/\/welleltron.com\/wp-content\/uploads\/2025\/12\/PU-Sponge-Sheet_3.png",850,850,false],"author_info":[],"comment_info":"","_links":{"self":[{"href":"https:\/\/welleltron.com\/es\/wp-json\/wp\/v2\/product\/1051","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/welleltron.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/welleltron.com\/es\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/welleltron.com\/es\/wp-json\/wp\/v2\/media\/1136"}],"wp:attachment":[{"href":"https:\/\/welleltron.com\/es\/wp-json\/wp\/v2\/media?parent=1051"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/welleltron.com\/es\/wp-json\/wp\/v2\/product_brand?post=1051"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/welleltron.com\/es\/wp-json\/wp\/v2\/product_cat?post=1051"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/welleltron.com\/es\/wp-json\/wp\/v2\/product_tag?post=1051"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}