{"id":7509,"date":"2026-07-23T17:17:26","date_gmt":"2026-07-23T09:17:26","guid":{"rendered":"https:\/\/www.bomissteel.com\/product\/wrinkle-ppgi\/"},"modified":"2026-07-23T17:20:40","modified_gmt":"2026-07-23T09:20:40","slug":"wrinkle-ppgi","status":"publish","type":"product","link":"https:\/\/www.bomissteel.com\/bn\/product\/wrinkle-ppgi\/","title":{"rendered":"Wrinkle PPGI – Textured Pre-Painted Galvanized Steel Coil"},"content":{"rendered":"

Wrinkle PPGI is a textured pre-painted galvanized steel coil engineered with a distinctive three-dimensional wrinkle surface finish. The specialized coating formulation creates a permanent, visually striking texture that combines decorative appeal with enhanced durability. Widely specified for roofing systems, architectural cladding, commercial fa\u00e7ade panels, and premium appliance manufacturing, wrinkle PPGI delivers both aesthetic differentiation and long-term corrosion resistance for demanding B2B applications.<\/p>\n

\u09ae\u09c2\u09b2 \u09ac\u09c8\u09b6\u09bf\u09b7\u09cd\u099f\u09cd\u09af \u0993 \u09b8\u09c1\u09ac\u09bf\u09a7\u09be<\/h2>\n

1. Distinctive Wrinkle Texture:<\/strong> The surface features an irregular, three-dimensional wrinkle pattern produced through a controlled curing process. This unique texture adds visual depth, effectively masks minor surface imperfections, and provides a tactile finish that differentiates finished products in competitive markets.<\/p>\n

2. Enhanced Surface Durability:<\/strong> The textured profile offers improved resistance to surface abrasion and mechanical wear compared to smooth PPGI finishes. Minor scratches and handling marks that would be visible on conventional coatings are naturally concealed by the wrinkle pattern, making it an excellent choice for high-traffic or handling-intensive applications.<\/p>\n

3. Superior Coating Adhesion:<\/strong> The specialized wrinkle-finish formulation achieves stronger mechanical bonding to the substrate than standard paint systems. This reduces the risk of delamination, peeling, or flaking over the product lifecycle, particularly in environments with thermal cycling or mechanical stress.<\/p>\n

4. Broad Design Flexibility:<\/strong> Available across the full RAL color spectrum, wrinkle PPGI supports diverse architectural and industrial design languages \u2014 from retro and industrial aesthetics to contemporary minimalist schemes. The texture and color combinations can be tailored to specific project requirements.<\/p>\n

5. Excellent Corrosion Resistance:<\/strong> Built on a galvanized steel substrate with zinc coating ranging from 30 to 275 g\/m\u00b2, wrinkle PPGI provides robust protection against rust and atmospheric corrosion. The multi-layer coating system \u2014 primer, wrinkle topcoat, and back coat \u2014 forms a comprehensive barrier suitable for both interior and exterior environments.<\/p>\n

\"Wrinkle<\/p>\n

\u09aa\u09cd\u09b0\u09af\u09c1\u0995\u09cd\u09a4\u09bf\u0997\u09a4 \u09ac\u09bf\u09ac\u09b0\u09a3<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u09aa\u09a3\u09cd\u09af\u09c7\u09b0 \u09a8\u09be\u09ae<\/td>\nWrinkle PPGI (Textured Pre-Painted Galvanized Steel Coil)<\/td>\n<\/tr>\n
\u09aa\u09c1\u09b0\u09c1\u09a4\u09cd\u09ac\u09c7\u09b0 \u09aa\u09b0\u09bf\u09b8\u09b0<\/td>\n0.15 mm \u2013 1.5 mm<\/td>\n<\/tr>\n
\u09aa\u09cd\u09b0\u09b8\u09cd\u09a5\u09c7\u09b0 \u09aa\u09b0\u09bf\u09b8\u09b0<\/td>\n\u09ec\u09e6\u09e6 \u09ae\u09bf\u09ae\u09bf \u2013 \u09e7\u09e8\u09eb\u09e6 \u09ae\u09bf\u09ae\u09bf<\/td>\n<\/tr>\n
\u09a6\u09c8\u09b0\u09cd\u0998\u09cd\u09af<\/td>\nCustom cut to buyer specification<\/td>\n<\/tr>\n
\u099c\u09bf\u0999\u09cd\u0995 \u0986\u09ac\u09b0\u09a3<\/td>\n30 \u2013 275 g\/m\u00b2 (Z30 \u2013 Z275)<\/td>\n<\/tr>\n
Top Coating<\/td>\n10 \u2013 35 \u03bcm (wrinkle-texture polyester or modified polyester system)<\/td>\n<\/tr>\n
Back Coating<\/td>\n5 \u2013 14 \u03bcm (protective epoxy or polyester backing)<\/td>\n<\/tr>\n
Substrate Grades<\/td>\nDX51D, DX53D, Q235, SPCC, SGCC, SGCH, and equivalent grades<\/td>\n<\/tr>\n
Applicable Standards<\/td>\nGB\/T 12754, ASTM A755, EN 10169, JIS G 3312<\/td>\n<\/tr>\n
\u0995\u09af\u09bc\u09c7\u09b2\u09c7\u09b0 \u0993\u099c\u09a8<\/td>\n3 \u2013 8 metric tons per coil (standard)<\/td>\n<\/tr>\n
Available Colors<\/td>\nFull RAL palette; popular options include RAL 7024, RAL 8017, RAL 9005, RAL 3000, RAL 5015, RAL 6005<\/td>\n<\/tr>\n
\u09aa\u09cd\u09b0\u0995\u09cd\u09b0\u09bf\u09af\u09bc\u09be\u0995\u09b0\u09a3 \u09aa\u09b0\u09bf\u09b7\u09c7\u09ac\u09be<\/td>\nSlitting, cut-to-length, punching, press forming, and profile rolling<\/td>\n<\/tr>\n
Minimum Order Quantity<\/td>\n10 metric tons (smaller trial quantities negotiable)<\/td>\n<\/tr>\n
\u09aa\u09cd\u09af\u09be\u0995\u09c7\u099c\u09bf\u0982<\/td>\nStandard seaworthy export packaging with edge protection and moisture barrier<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

How the Wrinkle Texture Is Formed<\/h2>\n

The signature wrinkle effect is achieved through a precisely engineered coating and curing process:<\/p>\n

Step 1 \u2013 Specialty Coating Application:<\/strong> A high-viscosity, thixotropic paint formulation \u2014 typically based on modified polyester or acrylic resin systems with specialized curing agents \u2014 is applied to the galvanized substrate via precision roller coating equipment. The coating is deposited at a heavier film build than standard PPGI to provide sufficient material for texture development.<\/p>\n

Step 2 \u2013 Controlled Thermal Curing:<\/strong> The coated coil enters a multi-zone curing oven with precisely managed temperature gradients. The elevated temperature triggers differential curing: the surface layer crosslinks and solidifies rapidly, while the underlying coating layer cures at a slower rate.<\/p>\n

Step 3 \u2013 Texture Formation:<\/strong> As the slower-curing inner layer undergoes its curing cycle, it generates controlled shrinkage stress against the already-set surface layer. Because this stress distributes unevenly across the coating, it produces the characteristic irregular, artistic wrinkle pattern that is permanently locked into the cured finish.<\/p>\n

\u0985\u09cd\u09af\u09be\u09aa\u09cd\u09b2\u09bf\u0995\u09c7\u09b6\u09a8<\/h2>\n
    \n
  • Roofing Systems:<\/strong> Recommended as a premium roofing material for cold-climate regions, where the textured surface provides additional snow-shedding characteristics and the enhanced coating durability withstands freeze-thaw cycling.<\/li>\n
  • Exterior Wall Cladding:<\/strong> Specified for commercial and industrial building fa\u00e7ades where distinctive visual texture and long-term weather resistance are project priorities.<\/li>\n
  • Interior Decorative Panels:<\/strong> Applied in interior wall and ceiling systems for retail, hospitality, and commercial spaces seeking an industrial or contemporary design aesthetic.<\/li>\n
  • High-End Furniture:<\/strong> Utilized as surface paneling for premium furniture lines, where the wrinkle finish serves as a design feature and provides practical scratch concealment.<\/li>\n
  • Home Appliance Manufacturing:<\/strong> Selected for exterior panels on premium ovens, microwave units, refrigeration equipment, and other appliances where both appearance and durability drive material specification.<\/li>\n
  • \u09ad\u09cb\u0995\u09cd\u09a4\u09be \u0987\u09b2\u09c7\u0995\u099f\u09cd\u09b0\u09a8\u09bf\u0995\u09cd\u09b8:<\/strong> Used in speaker enclosures, gaming console housings, and audio equipment cabinets where a distinctive textured finish adds perceived product value.<\/li>\n
  • Retail Fixtures & Display Systems:<\/strong> Fabricated into shelving, display racks, and point-of-sale fixtures that benefit from a durable, visually appealing surface.<\/li>\n
  • Outdoor Signage & Billboards:<\/strong> An ideal substrate for outdoor advertising structures requiring weather resistance and a premium appearance that holds up under prolonged UV and moisture exposure.<\/li>\n<\/ul>\n

    Comparison: Wrinkle PPGI vs. Standard PPGI<\/h2>\n

    The fundamental difference between wrinkle PPGI and conventional smooth PPGI lies in the coating chemistry and application process. Standard PPGI uses a conventional polyester, silicone-modified polyester (SMP), or PVDF coating system applied in a uniform, smooth film. Wrinkle PPGI employs a specially formulated high-viscosity, high-thixotropic paint that undergoes controlled differential curing to produce its characteristic texture.<\/p>\n

    This process requires a thicker coating film build than standard finishes, which contributes to both the visual effect and the enhanced mechanical durability. As a result, wrinkle PPGI typically commands a higher price point than comparable smooth PPGI products \u2014 a premium justified by the added aesthetic value and extended service life in demanding applications.<\/p>\n

    Processing & Fabrication Guidance<\/h2>\n

    For optimal results when processing wrinkle PPGI coils, the following practices are recommended:<\/p>\n

    Slitting & Cutting:<\/strong> Standard coil slitting lines and cut-to-length shears are suitable. The textured surface does not interfere with conventional cutting equipment. Sharp tooling and appropriate clearance settings help maintain clean edges.<\/p>\n

    Roll Forming:<\/strong> Wrinkle PPGI can be roll-formed into corrugated, trapezoidal, and standing seam profiles using standard roll forming lines. The coating’s strong adhesion and flexibility accommodate typical bend radii without cracking or delamination.<\/p>\n

    Press Forming & Punching:<\/strong> The coating system is engineered to withstand moderate forming operations. For deep-draw applications, testing with sample material is suggested to validate performance against specific tooling and draw depths.<\/p>\n

    Handling & Storage:<\/strong> While the wrinkle texture provides superior scratch concealment compared to smooth PPGI, standard coil handling practices are recommended: use protective slings, store coils in dry conditions, and avoid dragging sheets across one another during fabrication.<\/p>\n

    Quality Assurance & Testing<\/h2>\n

    Each production batch of wrinkle PPGI undergoes a multi-stage quality verification protocol:<\/p>\n

      \n
    • Substrate Inspection:<\/strong> Zinc coating weight verification, base metal mechanical property testing (tensile strength, yield strength, elongation), and surface quality assessment per applicable standards.<\/li>\n
    • Paint System Testing:<\/strong> Coating thickness measurement, color consistency verification against RAL standards, gloss level assessment, and coating adhesion testing (T-bend, impact, and cross-hatch methods).<\/li>\n
    • Finished Product Testing:<\/strong> Accelerated weathering (QUV), salt spray resistance (per ASTM B117 or equivalent), pencil hardness, and MEK rub testing to confirm full cure and chemical resistance.<\/li>\n<\/ul>\n

      \u09aa\u09cd\u09b0\u09be\u09af\u09bc\u09b6\u0987 \u099c\u09bf\u099c\u09cd\u099e\u09be\u09b8\u09bf\u09a4 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8\u09be\u09ac\u09b2\u09c0<\/h2>\n

      Q: What is the minimum order quantity for wrinkle PPGI, and can sample coils be provided?<\/h3>\n

      The standard MOQ is 10 metric tons per specification. For initial qualification and trial purposes, smaller quantities may be accommodated \u2014 please contact our sales team with your specific requirements, and we will work to find a suitable arrangement.<\/p>\n

      Q: What color options are available, and can custom RAL colors be matched?<\/h3>\n

      Wrinkle PPGI is available across the full RAL color range. Standard stock colors include RAL 7024 (graphite grey), RAL 8017 (chocolate brown), RAL 9005 (jet black), RAL 3000 (flame red), RAL 5015 (sky blue), and RAL 6005 (moss green). Custom RAL matching is available for orders meeting the MOQ threshold.<\/p>\n

      Q: What zinc coating weights are recommended for exterior applications?<\/h3>\n

      For exterior architectural and roofing applications, a zinc coating of Z120\u2013Z275 (120\u2013275 g\/m\u00b2) is typically suggested, depending on the environmental corrosivity category of the project location. For interior or sheltered applications, Z30\u2013Z100 may be adequate. Our technical team can provide specific guidance based on your project’s exposure conditions.<\/p>\n

      Q: Is wrinkle PPGI suitable for roll forming into roofing profiles?<\/h3>\n

      Yes. Wrinkle PPGI is routinely roll-formed into corrugated, trapezoidal, and standing seam roofing profiles. The coating system maintains strong adhesion and flexibility through standard forming operations. Test runs for new or complex profiles are recommended to validate processing parameters.<\/p>\n

      Q: How does the wrinkle texture affect cleaning and maintenance?<\/h3>\n

      The textured surface does not significantly complicate routine cleaning. Standard mild detergent and water washing is effective for most environmental soiling. The wrinkle pattern naturally conceals minor dust and handling marks better than smooth finishes, which can reduce the frequency of cleaning required in many applications.<\/p>\n

      Q: What packaging is used for export shipments?<\/h3>\n

      Standard export packaging includes: inner moisture-resistant wrapping, edge protection rings, steel strapping, and outer weather-resistant wrapping. Coils are packed on wooden pallets or in steel cradles suitable for containerized ocean freight. Custom packaging specifications can be arranged for project-specific logistics requirements.<\/p>\n

      Q: What certifications does the product carry?<\/h3>\n

      Our manufacturing facilities are certified to ISO 9001 (quality management) and ISO 14001 (environmental management). Products can be supplied with CE marking and mill test certificates (MTC) per EN 10204. Additional third-party testing and certification can be coordinated for project-specific compliance requirements.<\/p>","protected":false},"excerpt":{"rendered":"

      Wrinkle PPGI is a textured pre-painted galvanized steel coil featuring a distinctive three-dimensional wrinkle surface finish that combines decorative appeal with enhanced durability for roofing, cladding, and appliance manufacturing.<\/p>\n

      \u09aa\u09cd\u09b0\u09a7\u09be\u09a8 \u09b8\u09cd\u09aa\u09c7\u09b8\u09bf\u09ab\u09bf\u0995\u09c7\u09b6\u09a8\u09b8\u09ae\u09c2\u09b9:<\/strong><\/p>\n

        \n
      • Thickness: 0.15 mm \u2013 1.5 mm<\/li>\n
      • \u09aa\u09cd\u09b0\u09b8\u09cd\u09a5: \u09ec\u09e6\u09e6 \u09ae\u09bf\u09ae\u09bf \u2013 \u09e7\u09e8\u09e6\u09eb\u09e6 \u09ae\u09bf\u09ae\u09bf<\/li>\n
      • Zinc Coating: Z30 \u2013 Z275 (30 \u2013 275 g\/m\u00b2)<\/li>\n
      • Top Coating: 10 \u2013 35 \u03bcm wrinkle-texture finish<\/li>\n
      • Colors: Full RAL palette available<\/li>\n<\/ul>\n

        \u098f\u09b0 \u099c\u09a8\u09cd\u09af \u0986\u09a6\u09b0\u09cd\u09b6:<\/strong> Roofing systems, architectural cladding, exterior wall panels, premium home appliances, furniture surfacing, and retail fixture manufacturing.<\/p>","protected":false},"featured_media":7513,"template":"","meta":{"rank_math_title":"Wrinkle PPGI - Textured Color Coated Steel Coil","rank_math_description":"Premium wrinkle PPGI steel coils with 3D textured finish for roofing, cladding & appliance manufacturing. Full RAL colors, 0.15-1.5mm thickness. Wholesale supplier - MOQ 10 tons.","rank_math_canonical_url":"","rank_math_focus_keyword":"wrinkle PPGI"},"product_brand":[],"product_cat":[32],"product_tag":[66,58,63],"class_list":["post-7509","product","type-product","status-publish","has-post-thumbnail","product_cat-ppgi-coil","product_tag-astm-a755","product_tag-dx51d","product_tag-en-10169","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product\/7509","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product\/7509\/revisions"}],"predecessor-version":[{"id":7514,"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product\/7509\/revisions\/7514"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/media\/7513"}],"wp:attachment":[{"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/media?parent=7509"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product_brand?post=7509"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product_cat?post=7509"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.bomissteel.com\/bn\/wp-json\/wp\/v2\/product_tag?post=7509"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}