Apa Itu Lembaran Polipropilena Bergelombang? — Struktur, Nama-nama, & Cara Pembuatannya
Lembaran polipropilena bergelombang adalah panel plastik yang kaku dan ringan, terbuat dari resin polipropilena (PP). Ciri khasnya adalah struktur dinding ganda: dua lapisan PP datar yang dihubungkan oleh serangkaian saluran berongga paralel — yang disebut alur atau rusuk — yang membentang ke satu arah melalui inti panel. Geometri inilah yang membedakan polipropilena bergelombang dari lembaran plastik padat: saluran-saluran berlubang tersebut berfungsi sebagai balok struktural, sehingga memberikan kekakuan pada lembaran yang jauh melebihi apa yang diperkirakan berdasarkan massa bahan bakunya, dengan berat sekitar seperlima dari berat panel PP padat yang setara.
Bahan ini diproduksi melalui proses koekstrusi. Resin PP cair dialirkan melalui cetakan lembaran datar yang menghasilkan lapisan luar dan inti bergelombang dalam satu proses yang berkelanjutan. Profil gelombang — jarak, tinggi, ketebalan dinding — ditentukan selama proses ekstrusi dan tidak dapat diubah setelahnya. Inilah sebabnya mengapa ketebalan dan kepadatan bersama-sama menentukan sifat mekanis lembaran apa pun: lembaran setebal 4 mm dengan kepadatan 0,6 kg/m² memiliki kapasitas beban yang berbeda dibandingkan lembaran setebal 4 mm dengan kepadatan 0,8 kg/m², meskipun keduanya memiliki ukuran 4 mm saat diukur dengan penggaris.
Cara industri menyebut bahan ini sangat bervariasi tergantung pasarnya:
| Nama Dagang |
Wilayah |
Dimiliki oleh |
| Coroplast |
AS, Kanada |
Coroplast Inc. |
| Correx |
Inggris, Irlandia |
Ariel Plastics |
| Corflute |
Australia, Selandia Baru |
Istilah umum |
| Corriboard |
Inggris, Irlandia |
Istilah umum |
| Cartonplast |
Jerman, Eropa |
Istilah umum |
| Twinplast |
Global |
Beberapa produsen |
| Lembaran polipropilena bergelombang |
Global |
Istilah umum |
| Lembaran polipropilena bergalur |
Global |
Istilah umum |
| Papan berongga PP |
Global (ketentuan standar PPBOXY) |
Istilah umum |
Semua nama tersebut merujuk pada bahan yang sama: lembaran polipropilena dinding ganda hasil ekstrusi. Perbedaannya terletak pada merek dagang, bukan spesifikasi produk. Ketika Anda menentukan spesifikasi lembaran berdasarkan parameter teknis — ketebalan, kepadatan, geometri alur, tingkat ketahanan UV, dan tingkat ketahanan api — nama dagang tersebut menjadi tidak relevan.
PPBOXY memproduksi lembaran polipropilena bergelombang di fasilitas produksi kami di Shandong berdasarkan sistem manajemen mutu ISO 9001. Semua jenis lembaran tersebut secara standar telah memenuhi peraturan REACH dan RoHS.
Lembaran Polipropilena Bergelombang — Spesifikasi Standar
| Spesifikasi |
Nilai Standar |
Rentang Kustom |
| Bahan |
Homopolimer atau kopolimer polipropilena (PP) |
PP murni atau daur ulang; tersedia PP yang aman untuk makanan |
| Struktur |
Profil bergelombang (bergelombang) berdinding ganda |
Jarak antar alur 4–6 mm; ketebalan dinding 0,4–0,7 mm |
| Ukuran lembaran standar |
1.220 × 2.440 mm (4 × 8 kaki) |
Maksimal 2.100 × 6.000 mm |
| Pilihan ketebalan |
2 / 3 / 4 / 5 / 6 / 8 / 10 / 12 mm |
Tersedia ketebalan sesuai pesanan |
| Ketebalan lembaran — 4 mm |
~1,78 kg/lembar (0,6 kg/m²) |
Berbeda-beda tergantung pada tingkat kepadatan |
| Ketebalan lembaran — 5 mm |
~2,22 kg/lembar |
— |
| Pilihan warna |
White, black, blue, yellow, red, grey, green, clear |
Custom Pantone — 500 sheet MOQ |
| Surface finish |
Matt (standard), gloss (optional) |
Anti-slip, anti-static, printable corona-treated |
| Corona treatment |
≥ 38 dyne (standard for signage grade) |
Required for ink adhesion |
| Kekuatan tarik |
≥ 18 MPa (MD) / ≥ 16 MPa (TD) |
— |
| Flexural strength |
≥ 22 MPa |
— |
| Impact strength |
≥ 10 kJ/m² (Izod notched) |
— |
| Penyerapan air |
< 0,01% |
— |
| Operating temperature |
-20°C to +80°C continuous |
-40°C to +100°C short-term |
| UV resistance — standard |
2–3 years outdoor (HB stabiliser) |
— |
| UV resistance — extended |
5+ years outdoor |
+15–25% price premium |
| Flame rating |
HB standard |
UL 94 V-0 available (FR grade) |
| Sertifikasi |
ISO 9001, REACH, RoHS |
FDA 21 CFR 177.1520 (food-grade grade) |
| Kemudahan Pencetakan |
CMYK digital, UV flatbed, screen, flexographic |
— |
| Kemampuan daur ulang |
100% (PP #5) |
— |
| MOQ |
Tidak ada batas minimum |
— |
Five Grades of Corrugated Polypropylene Sheet — Which One Do You Need?
Not all corrugated polypropylene sheet is the same material. The base twin-wall structure is identical across grades, but compound additives and surface treatments change the performance envelope significantly. Five distinct grades cover most commercial applications:
Grade 1 — Standard (General Purpose)
Base polypropylene, HB flame rating, standard UV stabiliser (2–3 year outdoor life). This is the default specification for yard signs, temporary packaging, agricultural trays, and short-cycle industrial dividers. It is the lowest-cost grade and available in the widest colour range. Choose Standard when the application is either indoors or outdoor for less than 2 years with no regulatory flame or electrical requirements.
Grade 2 — UV-Stabilised (Long-Outdoor)
Elevated UV-absorber and HALS (hindered amine light stabiliser) package extends outdoor life to 5+ years without significant yellowing, embrittlement, or surface chalking. Required for permanent outdoor signage, building cladding panels, and agricultural greenhouse sidewalls. Price premium over Standard: 15–25%.
Grade 3 — Flame Retardant (FR / UL 94 V-0)
Halogen-free phosphorus-nitrogen flame retardant system achieves UL 94 V-0 (< 10 s self-extinguishing, no drip ignition). Required for construction partitions in IBC/NFPA-regulated buildings, transit vehicle interior panels, and trade-show booth walls under fire safety codes. Limiting Oxygen Index (LOI): 28–32%. See PP Flame Retardant Board for full FR specifications.
Grade 4 — ESD / Anti-Static (10⁹–10¹¹ Ω/sq)
Carbon-black or conductive polymer compound brings surface resistivity into the electrostatic dissipative (ESD) range. Required for packaging electronic components, PCB assembly trays, semiconductor wafer carriers, and clean-room dividers. Available with surface resistivity: anti-static (10⁹–10¹¹ Ω/sq) or conductive (10⁴–10⁶ Ω/sq).
Grade 5 — Food-Grade (FDA / EU Food Contact)
Virgin PP compound without heavy-metal pigments or recycled content. Complies with FDA 21 CFR 177.1520 (indirect food contact) and EU Regulation EC 1935/2004. Required for fruit and vegetable layer pads, beverage bottle tier sheets, food packaging dividers, and agriculture produce trays. Request certificate of compliance with order.
Quick-select table:
| Aplikasi |
Recommended Grade |
| Yard signs, construction hoarding |
Standard or UV-Stabilised |
| Permanent outdoor signage, greenhouse walls |
Tahan Sinar UV |
| Building partitions, transit interiors, trade show walls |
Flame Retardant (V-0) |
| Electronic component packaging, PCB trays |
ESD / Anti-Statis |
| Food packaging dividers, beverage layer pads, produce trays |
Kelas Pangan |
| Standard reusable shipping dividers |
Standar |
| Cryogenic sample storage (vial dividers) |
See Cryobox Dividers page |
Corrugated Polypropylene Sheet vs Cardboard vs PVC Foam vs Solid PP
Corrugated polypropylene sheet competes with four other flat panel materials across signage, packaging, and construction applications. The comparison below uses a 4mm panel at equivalent stiffness for all materials.
| Properti |
Corrugated PP Sheet |
Karton Bergelombang |
Busa PVC (Foamex) |
Solid PP Sheet |
| Weight (4mm) |
~0,6 kg/m² |
~0,5 kg/m² |
~3,0 kg/m² |
~3.6 kg/m² |
| Tahan air |
Yes — < 0.01% absorption |
No — collapses when wet |
Ya |
Ya |
| Outdoor life |
2–5+ tahun |
1–2 weeks (outdoor) |
5–10 tahun |
Lebih dari 10 tahun |
| Ketahanan terhadap sinar UV |
Good (stabilised grade: excellent) |
Poor — yellows in days |
Bagus |
Bagus |
| Ketahanan terhadap benturan |
High — hollow channels absorb shock |
Low — dents and tears |
Medium — brittle at low temp |
Excellent — solid mass |
| Kemudahan Pencetakan |
Good (corona-treated surface) |
Good (but bleeds wet) |
Excellent (smooth face) |
Sangat bagus |
| Kemudahan Pemesinan |
Score-and-fold, saw, CNC router |
Score-and-fold |
Saw, router, laser |
Drill, mill, machine |
| Ketahanan terhadap bahan kimia |
Good (PP is resistant to most acids/bases) |
Poor — absorbs solvents |
Bagus |
Sangat bagus |
| Kemampuan daur ulang |
100% PP #5 |
Yes (paper) |
Difficult (PVC) |
100% PP #5 |
| Cost per m² (4mm) |
$$ |
$ |
$$$ |
$$$$ |
| Cost per use (50 cycles) |
$0.02–0.05 |
$0.50–1.50 (1 use) |
$0.06–0.15 |
$0.04–0.10 |
| Paling cocok untuk |
Signage, packaging, construction protection, dividers |
Single-use indoor packaging |
Permanent indoor signage, shop-fit |
CNC-machined parts, permanent fixtures |
Panduan pengambilan keputusan:
If the application is outdoor with budget constraints → corrugated polypropylene sheet beats cardboard on durability and PVC on cost.
If the application requires permanent outdoor installation (10+ years) → PVC Foam or aluminium composite panel (ACM) may be more appropriate despite higher upfront cost.
If the application requires precision machining, threading, or structural load-bearing → solid PP sheet or engineering plastics are the better choice.
If the application is single-use indoor packaging at minimum cost → corrugated cardboard remains the cheapest option.
Corrugated polypropylene fills the gap: durable enough for outdoor and repeated-use applications, light and cheap enough to replace cardboard at scale, without the weight or cost of solid plastic panels.
Applications by Industry
Papan Tanda dan Iklan
Corrugated polypropylene sheet is the global standard substrate for short- and medium-term outdoor signage. The combination of light weight, corona-treated printable surface, and 2–3 year UV resistance makes it the material of choice for real estate yard signs, construction hoarding boards, event directional signage, and retail point-of-purchase displays. Standard application thickness: 3–5 mm. For full signage specifications including wind load ratings by thickness, see Papan Berongga PP.
Pengemasan dan Logistik
As a reusable, waterproof, and lightweight packaging substrate, corrugated polypropylene sheet reduces per-cycle packaging costs dramatically versus single-use corrugated cardboard. Applications include: folding packaging boxes for electronics and automotive parts, reusable layer pads and tier sheets for palletised loads, divider inserts for glass and ceramic shipments, and protective packaging for fragile items. For specific box formats, see Kotak Plastik Bergelombang PP or Folded Packaging Box. For layer pads and tier sheets, see Bantalan Lapisan Plastik.
Construction and Building Protection
In construction, corrugated polypropylene sheet is used as a temporary surface protector for floors, stairs, countertops, and wall panels during building fit-out or renovation. The 4–6 mm sheet laid flat absorbs foot traffic, tool drops, and paint spills without damaging the finished surface beneath. Flame retardant grades (UL 94 V-0) are required in enclosed areas under fire safety regulations. See Papan PP Tahan Api for FR-grade specifications.
Pertanian
Food-grade and standard corrugated polypropylene sheets are used extensively in agricultural packaging: fruit and vegetable layer pads stacked on pallets, corrugated plastic harvest bins, greenhouse sidewall panels, and shade or windbreak boards. The material tolerates washdown with water and mild sanitisers without absorbing moisture or warping. See Dewan Pengemasan Produk Pertanian for crop-specific packaging formats.
Electronics and ESD Packaging
For semiconductor, PCB, and precision component transport, ESD-grade corrugated polypropylene sheet (surface resistivity 10⁹–10¹¹ Ω/sq) eliminates electrostatic discharge damage during handling and transit. Applications include wafer carrier trays, PCB shipping boxes with ESD foam inserts, and anti-static layer pads for stacked component storage.
Medical and Laboratory
In healthcare and laboratory settings, corrugated polypropylene sheet is used for pharmaceutical packaging dividers, medical device tray inserts, and — at cryogenic grades — vial storage dividers for biobanking at -80°C and -196°C. See Kemasan Obat-obatan dan Pembatas Cryobox for application-specific information.
Corrugated Polypropylene Sheet vs Other PP Board Types — Which Page to Visit
Corrugated polypropylene sheet is the broadest category term. PPBOXY manufactures multiple variants and application-specific formats derived from the same base material. Use this table to find the most relevant page for your specific requirement.
| What you need |
Best PPBOXY page |
| General-purpose 4×8 twin-wall PP sheet for packaging or industrial use |
Lembaran PP Berongga |
| Signage board — real estate, advertising, events, construction safety signs |
Papan Berongga PP |
| 3mm corrugated sheet for yard signs |
Lembaran PP Bergelombang 3 mm |
| 4mm standard thickness sheet |
Lembaran PP Berongga 4 mm |
| 5mm sheet for structural or large-format signage |
Lembaran Polipropilena 5 mm |
| Blue colour corrugated sheet for construction protection |
Lembaran PP Bergelombang Biru 5 mm |
| High-density / high-strength PP board for load-bearing applications |
High Strength PP Board |
| Flame retardant corrugated sheet (UL 94 V-0) |
Papan PP Tahan Api |
| Honey comb structure board (maximum compression strength) |
Papan Sarang Lebah PP |
| Printed correx / corriboard signs |
Corriboard / Correx Boards and Signs |
| Weatherproof printed display sheet for outdoor advertising |
Lembaran Layar Tahan Cuaca |
| Corrugated PP protective sheet for floor/surface protection |
Lembaran Plastik Bergelombang Pelindung |
| Layer pads and tier sheets for palletised loads |
Bantalan Lapisan Plastik |
| Reusable folding packaging box |
Kotak Kemasan Lipat |
| Custom OEM corrugated PP box |
Kontainer Pengiriman Plastik Khusus |
| Custom PP board material for your own box production |
Papan PP Khusus untuk Kemasan |
| Cryogenic vial dividers (-80°C / -196°C) |
Pembatas Cryobox |
If your application is not covered above, contact PPBOXY to describe your specific load, temperature, regulatory, and size requirements. We manufacture corrugated polypropylene sheet in all five material grades with no minimum order quantity.
Pertanyaan yang Sering Diajukan
Q1: What is corrugated polypropylene sheet made of?
Lembaran polipropilena bergelombang dibuat dari resin polipropilena (PP), sebuah termoplastik semikristalin. Bahan baku dimasukkan melalui cetakan koekstrusi yang menghasilkan dua lapisan luar datar dan inti bergelombang secara bersamaan dalam satu proses. Hasilnya adalah panel dinding ganda di mana saluran-saluran berongga membentang sejajar melalui inti. Tipe standar menggunakan homopolimer atau kopolimer PP murni; versi food-grade menggunakan PP murni tanpa pigmen logam berat; tipe ESD menggunakan senyawa karbon hitam; sedangkan tipe tahan api menggunakan sistem fosfor-nitrogen bebas halogen.
Q2: Is corrugated polypropylene sheet the same as Coroplast, Correx, or Corflute?
Ya. Coroplast, Correx, Corflute, Corriboard, Cartonplast, dan Twinplast semuanya merupakan nama dagang komersial atau istilah regional untuk produk yang sama: lembaran polipropilena bergelombang dinding ganda yang diekstrusi. Spesifikasi bahan — ketebalan, kepadatan, dan geometri alur — sama di seluruh merek. Jika Anda memesan berdasarkan spesifikasi teknis alih-alih nama merek, produk tersebut setara terlepas dari produsen mana yang menyediakannya.
Q3: How is corrugated polypropylene sheet different from corrugated cardboard?
Prinsip strukturnya serupa — keduanya menggunakan inti bergelombang di antara dua lapisan luar datar untuk mencapai kekakuan dengan bobot yang ringan — namun kinerja bahan-bahannya sangat berbeda. PP bergelombang tahan air (penyerapan air < 0,01%), sedangkan karton menyerap kelembapan dan hancur saat basah. PP bergelombang dapat digunakan kembali hingga 50–100+ siklus, sedangkan karton biasanya hanya tahan untuk 1–3 kali penggunaan. PP bergelombang tahan terhadap bahan kimia; karton menjadi lunak jika terkena minyak, pelarut, dan kelembapan. Biaya awal PP bergelombang 3–5 kali lebih tinggi daripada karton, tetapi biaya per penggunaan 10–50 kali lebih rendah untuk aplikasi apa pun yang memerlukan penggunaan berulang.
Q4: What thickness of corrugated polypropylene sheet should I use?
Standard application thickness guidelines:
- 2–3 mm: lightweight packaging inserts, layer pads, single-use flat dividers
- 3–4 mm: standard yard signs, trade show display boards, short-cycle packaging boxes
- 4–6 mm: medium-duty packaging boxes, construction surface protection, signage in moderate wind
- 6–8 mm: large-format signage, permanent construction hoarding, structural packaging
- 8–12 mm: load-bearing applications, heavy partitions, high-compression layer pads
If you are ordering for a specific application, our team can confirm the required thickness based on your load, span, and environmental conditions.
Q5: Can corrugated polypropylene sheet be printed on?
Ya. Polipropilena bergelombang memiliki permukaan yang secara alami non-polar sehingga menghambat daya rekat tinta. PPBOXY menerapkan perlakuan corona (≥ 38 dyne) pada lembaran kelas papan tanda selama proses ekstrusi, yang mengoksidasi permukaan dan memungkinkan tinta menempel dengan baik. Metode pencetakan yang didukung meliputi pencetakan digital UV flatbed, pencetakan digital CMYK, sablon, dan pencetakan fleksografis. Lembaran kelas kemasan (tanpa perlakuan corona) dapat dicetak menggunakan tinta sablon berbasis pelarut setelah melalui perlakuan awal dengan api ringan atau perlakuan corona.
Q6: Is corrugated polypropylene sheet recyclable?
Ya. Lembaran polipropilena bergelombang 100% dapat didaur ulang sebagai PP #5. Komposisi bahan tunggalnya — tanpa laminasi, tanpa perekat, dan tanpa lapisan polimer campuran — berarti lembaran ini dapat digiling, dilelehkan, dan diekstrusi ulang tanpa perlu melalui tahap pemisahan. Dalam praktiknya, logistik daur ulang bergantung pada infrastruktur pengumpulan lokal. PPBOXY menerima kembali lembaran PP berongga bekas dari pelanggan dalam jumlah besar — hubungi kami untuk detail program pengambilan kembali.
Q7: What is the difference between corrugated polypropylene sheet and fluted polypropylene sheet?
They are the same material under two different names. “Corrugated” describes the wavy internal channel profile when viewed in cross-section. “Fluted” describes the same channels from a different angle — the parallel hollow tubes running lengthwise through the panel. Both terms are used interchangeably in the industry. See also: Polypropylene Fluted Sheet for a dedicated page.
Q8: Is corrugated polypropylene sheet food safe?
Standard grades are not certified for direct food contact, as they may contain pigments or UV additives not approved for food contact. PPBOXY’s food-grade corrugated polypropylene sheet uses virgin PP compound compliant with FDA 21 CFR 177.1520 (indirect food contact) and EU Regulation EC 1935/2004. Food-grade sheets are used for fruit and vegetable layer pads, beverage bottle tier sheets, and produce packaging trays. Request the certificate of compliance at the time of ordering.
Lembaran Polipropilena Bergelombang