{"id":4002,"date":"2024-12-18T07:01:05","date_gmt":"2024-12-18T07:01:05","guid":{"rendered":"https:\/\/ppboxy.com\/?post_type=product&p=4002"},"modified":"2026-06-08T06:02:09","modified_gmt":"2026-06-08T06:02:09","slug":"pp-corrugated-sheet-3mm","status":"publish","type":"product","link":"https:\/\/ppboxy.com\/fr\/product\/pp-corrugated-sheet-3mm\/","title":{"rendered":"Plaque ondul\u00e9e en PP de 3 mm"},"content":{"rendered":"

3mm PP Corrugated Sheet \u2014 Lightweight Foldable Board for Packaging & Signage<\/h3>\n

Le PP Corrugated Sheet 3mm<\/strong>,<\/a> crafted from high-quality Polypropylene (PP) Hollow Board<\/strong><\/a>, is a durable, lightweight, and versatile material designed to meet various industrial and commercial needs. Its strength, moisture resistance, and customizability make it an ideal choice for packaging, advertising, and agricultural applications. Whether you’re looking for reliable protection, eco-friendly solutions, or visually appealing displays, the PP Corrugated Sheet 3mm delivers unmatched performance.<\/p>\n

Caract\u00e9ristiques techniques<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Caract\u00e9ristiques techniques<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Mat\u00e9riau<\/td>\nPolypropylene (PP) corrugated \/ fluted<\/td>\n<\/tr>\n
\u00c9paisseur<\/td>\n3mm (1\/8\u2033)<\/td>\n<\/tr>\n
Sheet Colour<\/td>\nWhite (standard), black, blue, natural, custom<\/td>\n<\/tr>\n
Traitement de surface<\/td>\nCorona treated (dual-sided, white sheets)<\/td>\n<\/tr>\n
Surface Energy (post-treatment)<\/td>\n\u2265 42 dynes\/cm<\/td>\n<\/tr>\n
Format standard de feuille<\/td>\n1220 \u00d7 2440 mm (4\u2032 \u00d7 8\u2032)<\/td>\n<\/tr>\n
Custom Sizes Available<\/td>\nYes \u2014 cut and die-cut to specification<\/td>\n<\/tr>\n
Weight (per m\u00b2)<\/td>\n~600 g<\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n0.90\u20130.91 g\/cm\u00b3<\/td>\n<\/tr>\n
Flute Type<\/td>\nSquare \/ round (specify on order)<\/td>\n<\/tr>\n
Temp\u00e9rature de fonctionnement<\/td>\nde -20 \u00b0C \u00e0 +80 \u00b0C<\/td>\n<\/tr>\n
Absorption d'eau<\/td>\n< 0.01% (virtually waterproof)<\/td>\n<\/tr>\n
Chemical Resistance<\/td>\nAcids, alkalis, oils, most solvents<\/td>\n<\/tr>\n
Print Compatibility<\/td>\nUV-cured, solvent-based, screen printing<\/td>\n<\/tr>\n
Food Contact Compliance<\/td>\nEU 10\/2011, FDA 21 CFR \u00a7177.1520<\/td>\n<\/tr>\n
Recyclabilit\u00e9<\/td>\nPP Code 5 \u2014 fully recyclable<\/td>\n<\/tr>\n
Fire Rating<\/td>\nStandard (flame-retardant grade available on request)<\/td>\n<\/tr>\n
Minimum Order Quantity<\/td>\nAucun<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Key Features of the 3mm PP Corrugated Sheet<\/h2>\n

Lightweight Design<\/strong><\/h3>\n

The 3mm PP corrugated sheet is the thinnest commonly specified gauge in the polypropylene fluted board range. Where 5mm and 8mm sheets prioritise rigidity and self-support, the 3mm sheet prioritises formability and economy\u2014making it the material of choice whenever the board must be folded into a three-dimensional shape, shipped flat in bulk, or used at the lowest possible per-unit cost.<\/p>\n

Foldable and Crease-Ready<\/strong><\/h3>\n

This is the defining advantage of the 3mm sheet over every thicker alternative. At 3mm, the fluted polypropylene core can be scored with a creasing wheel or die, then folded by hand into trays, sleeves, boxes, and custom inserts\u2014without cracking, delaminating, or requiring heat-forming equipment. A 5mm sheet resists folding; an 8mm sheet cannot be folded at all by hand. For manufacturers producing foldable packaging boxes, mailer inserts, or returnable transit sleeves, the 3mm gauge is the only PP corrugated option that enables hand-assembly at scale.<\/p>\n

Lightweight for Maximum Freight Efficiency<\/strong><\/h3>\n

A 3mm PP sheet weighs approximately 400 g\/m\u00b2\u2014roughly 35% lighter than a 5mm sheet (~650 g\/m\u00b2) and 60% lighter than an 8mm sheet. In a container loaded with flat-packed sheets, this weight saving translates directly into lower per-unit shipping costs. For export buyers ordering by the pallet or container, the freight difference between 3mm and 5mm can represent a 20\u201330% reduction in landed cost\u2014often the deciding factor in competitive bidding.<\/p>\n

Moisture-Proof and Chemically Inert<\/strong><\/h3>\n

Like all polypropylene corrugated boards, the 3mm sheet is inherently waterproof and resistant to most acids, alkalis, and oils. Unlike cardboard, it will not soften, delaminate, or grow mould in humid environments. This makes it suitable for agricultural produce boxes that are washed between harvests, pharmaceutical packaging that must meet cleanroom standards, and seafood logistics where ice melt is unavoidable.<\/p>\n

Corona Treated for Direct Printing<\/strong><\/h3>\n

All PPBOXY 3mm sheets are corona treated on both sides as standard, raising surface energy above 42 dynes\/cm for reliable adhesion of UV-cured, solvent-based, and screen-printing inks. For short-term promotional signage\u2014election boards, weekend sale displays, event wayfinding\u2014the 3mm sheet provides professional print quality at a fraction of the cost of PVC foam board or acrylic.<\/p>\n

Recyclable Under PP Code 5<\/strong><\/h3>\n

At end of life, 3mm polypropylene sheets are fully recyclable through standard PP (code 5) waste streams. Because the material can be reused across dozens of shipping cycles in packaging applications, the per-trip environmental footprint is significantly lower than single-use cardboard\u2014despite the higher initial material cost.<\/p>\n

Applications of <\/strong>3mm <\/strong>PP Corrugated Sheet<\/strong><\/h2>\n

Foldable Packaging Boxes and Mailer Inserts<\/strong><\/h3>\n

The 3mm sheet is the default material for\u00a0foldable PP packaging boxes<\/a>\u2014the die-cut, flat-packed boxes that are creased, folded, and assembled on demand by e-commerce fulfilment centres, agricultural co-ops, and electronics manufacturers. Its foldability eliminates the need for adhesive tape or mechanical fasteners in many designs, and its moisture resistance protects contents from condensation and rain during last-mile delivery. For businesses shipping lightweight, non-fragile items, the 3mm foldable box replaces single-use cardboard at a lower per-trip cost after just 8\u201310 reuse cycles.<\/p>\n

Short-Term Promotional Signage<\/strong><\/h3>\n

Election signs, weekend sale boards, event wayfinding arrows, and temporary directional markers are the classic use case for 3mm coroplast-style sheet. The corona-treated white surface accepts vibrant full-colour prints that last 2\u20134 weeks outdoors\u2014exactly the lifespan these applications require. After the event, the lightweight sheets are easily removed and recycled, with no residual fixture damage. For buyers who need a “print, display, dispose” signage cycle, 3mm is the most economical substrate available.<\/p>\n

Agricultural Produce Layer Pads and Dividers<\/strong><\/h3>\n

In fruit and vegetable packing houses, 3mm PP sheets are die-cut into layer pads and cell dividers for\u00a0produce boxes<\/a>. Their thin profile maximises usable box height (unlike 5mm pads that eat into stacking space), and their waterproof surface can be hosed down between harvests for reuse. The material’s chemical inertness also makes it safe for direct food contact under EU and FDA regulations for polypropylene packaging.<\/p>\n

Pharmaceutical and Cleanroom Packaging<\/strong><\/h3>\n

Phharmaceutical distributors and medical device manufacturers use 3mm PP sheets as dividers and tray liners because the material does not shed fibres\u2014a critical advantage over cardboard in ISO-classified cleanroom environments. The sheets can be sterilised with alcohol wipes or autoclaved at moderate temperatures, and their smooth, non-porous surface resists bacterial colonisation. For\u00a0pharmaceutical packaging<\/a>\u00a0applications requiring documented material compliance, PPBOXY provides certificates of composition and compliance upon request.<\/p>\n

3mm vs 5mm vs Cardboard: Which Thickness Do You Need?<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Propri\u00e9t\u00e9<\/th>\nPlaque ondul\u00e9e en PP de 3 mm<\/th>\n5mm PP Corrugated Sheet<\/th>\nCardboard (Corrugated Fiberboard)<\/th>\n<\/tr>\n<\/thead>\n
Weight (per m\u00b2)<\/strong><\/td>\n~400 g<\/td>\n~650 g<\/td>\n~800 g<\/td>\n<\/tr>\n
Foldability by Hand<\/strong><\/td>\n\u2705 Easy\u2014score and fold without equipment<\/td>\n\u274c Resists folding; requires industrial creasing<\/td>\n\u2705 Easy\u2014scores and folds readily<\/td>\n<\/tr>\n
Self-Supporting (Freestanding Sign)<\/strong><\/td>\n\u274c Too thin\u2014requires frame or stake<\/td>\n\u2705 Stands upright unsupported<\/td>\n\u274c Warps and collapses in wind\/rain<\/td>\n<\/tr>\n
Dur\u00e9e de vie en ext\u00e9rieur<\/strong><\/td>\n2\u20134 weeks (short-term)<\/td>\n6\u201312 months<\/td>\n1\u20134 weeks before softening<\/td>\n<\/tr>\n
\u00c9tanch\u00e9it\u00e9<\/strong><\/td>\n\u2705 Fully waterproof<\/td>\n\u2705 Fully waterproof<\/td>\n\u274c Absorbs water, loses integrity<\/td>\n<\/tr>\n
Reusability (Packaging)<\/strong><\/td>\n\u2705 30\u201350 cycles<\/td>\n\u2705 50+ cycles<\/td>\n\u274c 1\u20133 cycles<\/td>\n<\/tr>\n
Print Quality (Corona Treated)<\/strong><\/td>\n\u2705 Direct print<\/td>\n\u2705 Direct print<\/td>\n\u2705 Direct print (but ink bleeds on uncoated)<\/td>\n<\/tr>\n
Co\u00fbt au m\u00b2<\/strong><\/td>\nLow (entry-level PP)<\/td>\nMedium<\/td>\nFaible<\/td>\n<\/tr>\n
Id\u00e9al pour<\/strong><\/td>\nFolding boxes, short-term signs, lightweight dividers<\/td>\nSelf-standing signs, layer pads, structural protection<\/td>\nOne-time shipping, indoor displays<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Decision Guide:<\/strong><\/p>\n