HSQY 0.4mm Frosted PP Sheet Polypropylene Plastic Sheet

0.4mm Frosted PP Sheet for Printing and Packaging

HSQY manufactures 0.4mm frosted polypropylene sheets for printed packaging boxes, file folders, notebook covers, document wallets, advertising panels, templates, dividers, placemats and other converted plastic products.

The featured sheet has a nominal thickness of 0.4mm and a matte or frosted surface that reduces glare, hides fingerprints and provides a clean visual appearance.

Available colors include natural translucent, frosted white, black, transparent colors, opaque colors and customized Pantone or sample-matched shades.

Standard PP has a relatively low surface energy. Sheets intended for offset printing, UV printing, screen printing, coating or adhesive bonding can be supplied with one-side or two-side corona treatment or an application-specific primer.

The featured 0.4mm sheet provides a balance of flexibility, stiffness and low weight for folding, creasing, die cutting, punching, stitching and other stationery or packaging converting processes.

Customized polypropylene sheets are available from approximately 0.25mm to 5mm. The available width, surface, color, flatness and production format depend on the selected thickness and formulation.

Optional grades include corona-treated, primer-coated, anti-static, static-dissipative, conductive, UV-stabilized, flame-retardant and application-specific food-contact PP sheets.

These optional properties are not automatically included in standard frosted PP sheet. The exact formulation, test method, thickness, color and intended use must be confirmed before production.

Explore the complete HSQY polypropylene sheet range and additional textured PP sheet products.

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Frosted Polypropylene Sheet Images

Frosted PP Sheet Video

Watch the video below to review HSQY polypropylene sheets, available surfaces and converting applications.

What Is a 0.4mm Frosted PP Sheet?

A 0.4mm frosted PP sheet is a thin, semi-rigid polypropylene sheet with a nominal thickness of 400 microns and a matte or textured surface.

The surface texture scatters reflected light and creates a softer visual appearance than a high-gloss PP surface.

Depending on pigment concentration and sheet construction, the material can be translucent, transparent colored or completely opaque.

At 0.4mm, PP is normally flexible enough for creasing and folding while retaining sufficient stiffness for folders, box panels, dividers, covers and templates.

Polypropylene has low density, low moisture absorption and resistance to many dilute acids, alkalis and cleaning chemicals. Chemical compatibility must still be confirmed for the exact chemical, concentration, temperature and exposure time.

Thin PP Sheet vs. Industrial PP Board

The featured product is a solid thin PP sheet and should not be confused with corrugated polypropylene board or thick industrial PP-H plate.

0.4mm Frosted PP Sheet Specifications

Final specifications should identify the exact PP resin or compound, nominal thickness, tolerance, dimensions, color, surface pattern, treatment side, printing process and finished-product requirements.

0.4mm PP Sheet Thickness and Handling

One millimeter equals 1000 microns. A 0.4mm polypropylene sheet is therefore 400 microns thick.

Frosted Surface Options

Light-transmission and haze values should be measured when the sheet is intended for lampshades, lightboxes, photography backgrounds or optical diffusion.

Corona-Treated PP Sheet for Printing

Untreated polypropylene has a relatively low surface energy, which can reduce ink, coating and adhesive adhesion.

Corona treatment modifies the PP surface and can improve wetting and adhesion for printing, coating and bonding.

Customers should specify whether one side or both sides require treatment and identify the printing side on the packaging label.

Corona treatment can decline during storage. Surface energy should be checked before printing, especially after extended storage or exposure to heat, moisture, dust or handling contamination.

Folding, Creasing and Living-Hinge Performance

Thin polypropylene sheets can be creased and repeatedly folded, making them useful for folders, boxes, notebook covers and hinged stationery products.

Fold performance depends on resin grade, thickness, grain direction, crease depth, crease width, folding radius, temperature and pigmentation.

• Confirm the machine direction and transverse direction before designing a repeated hinge.

• Use controlled creasing to avoid excessive thinning or cutting through the sheet.

• Test printed ink after repeated folding to check cracking and delamination.

• Validate cold-temperature folding when products will be stored or transported in winter conditions.

• Test colored, mineral-filled and flame-retardant grades separately because additives can change hinge performance.

Cutting, Punching and Joining Methods

• Use sharp guillotines, rotary cutters, steel-rule dies, punches or knives.

• Control sheet temperature and tool clearance to reduce burrs and distorted edges.

• Use suitable scoring tools for folding-box and folder production.

• Ultrasonic joining can be evaluated for compatible PP-to-PP components.

• Heat sealing and hot-plate welding require controlled temperature, pressure and dwell time.

• Standard PP is generally unsuitable for conventional RF or high-frequency dielectric welding.

• Adhesive bonding normally requires surface treatment, primer or an adhesive designed for low-surface-energy plastics.

• Mechanical methods include stitching, riveting, eyelets, clips and snap-fit assembly.

Applications of 0.4mm Frosted PP Sheet

• File folders: Printed office folders, expanding files, document wallets and project folders.

• Notebook covers: Reusable covers, dividers, index pages and decorative outer sheets.

• Folding boxes: Packaging for cosmetics, clothing, toys, gifts, shoes and consumer products.

• Advertising sheets: Promotional panels, warning signs, shelf signs and display components.

• Templates: Garment patterns, shoe templates, drawing stencils and reusable cutting guides.

• Packaging inserts: Dividers, separators, protective liners and product supports.

• Photo albums: Album covers, internal dividers and protective pages.

• Placemats: Printed, translucent or colored reusable table mats.

• Lampshades: Decorative translucent panels using a validated heat and light-diffusion grade.

• Electronic packaging: Insulating dividers and gaskets using a validated electrical or ESD grade.

Food-Contact PP Sheet Requirements

Polypropylene can be used in food-contact applications when the exact resin, additives, pigments and processing aids are authorized for the intended use.

Standard colored, printed, conductive, flame-retardant or recycled-content PP sheet should not automatically be described as food-contact compliant.

Buyers should specify the food type, contact temperature, contact duration, filling process, storage conditions and destination-market regulation.

Food-contact documentation may include resin compliance information, a declaration of compliance, overall migration testing and specific migration testing where applicable.

Printed food packaging also requires suitable inks, coatings and adhesives, with appropriate separation from food where required.

Anti-Static, Conductive and ESD PP Grades

Flame-Retardant PP Sheet

Standard polypropylene is combustible and should not be described as fireproof.

Flame-retardant formulations can be developed for applications requiring a defined burning classification.

The customer should specify the required standard, classification, thickness, color, specimen orientation and end-use environment.

A test result for one thickness or color should not automatically be applied to another formulation.

Material-level flammability results do not establish the fire rating of a complete sign, package, electrical device, furniture product or building system.

UV-Stabilized PP Sheet for Outdoor Use

Standard polypropylene sheet is mainly recommended for indoor printing, packaging and stationery applications.

Prolonged sunlight exposure may cause fading, chalking, embrittlement, loss of impact resistance and dimensional change.

Outdoor signs, panels and decorative sheets require an application-specific UV-stabilized formulation.

Outdoor requirements should identify the color, climate, exposure direction, service period, color-change limit, mechanical-property retention and weathering-test method.

Recycling and Sustainability

Polypropylene is a thermoplastic material that can be mechanically recycled where suitable collection, sorting and processing systems are available.

A finished product should not be described as universally recyclable based only on its PP base material.

Pigments, printing inks, labels, adhesives, coatings, metal fasteners, flame retardants and conductive fillers can affect sorting and recycling.

Recycled-content PP options can be evaluated according to color, odor, contamination, mechanical properties and regulatory requirements.

Food-contact use of recycled PP requires separately validated feedstock, recycling processes and applicable documentation.

Recommended Quality-Control Tests

• PP resin or compound verification.

• Virgin or recycled-content percentage.

• Thickness and thickness tolerance.

• Sheet length, width, diagonal and squareness.

• Sheet flatness, bow, curl and edge condition.

• Density or sheet-weight verification.

• Color and batch-to-batch color difference.

• Gloss, haze, light transmission and surface texture.

• Black spots, gels, bubbles, scratches, flow marks and contamination.

• Tensile strength, elongation and modulus.

• Impact performance at the required temperature.

• Heat shrinkage and dimensional stability.

• Creasing, folding and repeated-hinge performance.

• Die-cutting, punching and edge-quality tests.

• Corona-treatment level and treatment retention.

• Printing adhesion, curing, abrasion and scratch resistance.

• Adhesive-bonding and peel-strength tests.

• Heat-seal or ultrasonic-joint strength where required.

• Surface and volume resistance for ESD grades.

• Flammability testing for flame-retardant grades.

• UV-weathering tests for outdoor grades.

• Food-contact migration tests where applicable.

• Packing, pallet and shipping inspection.

Custom Frosted PP Sheet Options

• Featured 0.4mm frosted polypropylene sheet.

• Customized thicknesses from approximately 0.25mm to 5mm.

• Widths from approximately 300mm to 1700mm.

• 915 × 1830mm, 1220 × 2440mm and 1560 × 3050mm sheets.

• A4, A3, 3 × 6ft, 4 × 8ft and custom cut pieces.

• Natural translucent, frosted white, black and custom colors.

• Pantone and physical-sample color matching.

• One-side or two-side frosted surfaces.

• Fine matte, coarse frosted and custom embossed patterns.

• One-side or two-side corona treatment.

• Primer-coated printing surfaces.

• UV offset, screen, UV inkjet and digital-printing grades.

• Folding, die-cutting and repeated-hinge grades.

• Anti-static, static-dissipative and conductive grades.

• UV-stabilized and flame-retardant grades subject to testing.

• Application-specific food-contact grades.

• Customized labels, cartons, pallets and shipping marks.

Information Required for a Frosted PP Sheet Quote

• Required thickness and tolerance.

• Required sheet dimensions or roll width.

• Required sheet count, roll length or order weight.

• Natural, white, black, transparent colored or opaque colored appearance.

• Pantone number or physical color sample.

• One-side or two-side frosted surface.

• Fine matte, coarse frost or customized embossing.

• Printing method and ink system.

• Required corona-treatment side and surface-energy target.

• Folding, creasing, die cutting, punching or stitching process.

• Heat sealing, ultrasonic joining or adhesive-bonding requirement.

• Indoor or outdoor application.

• Anti-static, conductive, UV or flame-retardant requirements.

• Food-contact or medical-use conditions.

• Required technical and compliance documents.

• Initial order quantity and estimated annual demand.

• Packing, destination port and required delivery date.

Send Your Frosted PP Sheet Requirements

Packing and Delivery

Sample packing: Small sheets and A4 samples can be protected with PE bags and packed in rigid courier cartons.

Standard sheet packing: Sheets can be wrapped with PE film or kraft paper and protected with rigid corners.

Pallet packing: Sheets can be secured on wooden, plywood or fumigation-free export pallets using straps and stretch film.

Surface protection: Protective interleaving or surface film can be discussed for printed, high-gloss or scratch-sensitive products.

Custom packaging: Private labels, logos, barcodes, carton printing and customized shipping marks are available.

Sample shipping: Samples can be shipped through DHL, FedEx, UPS, TNT, Aramex or another agreed courier.

Lead time: Standard production generally requires approximately 7-10 days after the specification, sample, payment and packing are confirmed.

Certificates and Compliance Documents

Available documents may include technical data sheets, safety data sheets, restricted-substance reports, resin declarations, food-contact documents, physical-property reports and quality-management certificates.

SGS should be described according to the exact test performed and should not be presented as a universal product certification.

RoHS relates to restricted substances in electrical and electronic equipment and does not independently establish food-contact, medical, UV, printing or flammability performance.

REACH documentation should identify the relevant restricted substances, candidate-list date and exact product formulation.

Every report should be checked against the exact resin, additives, pigments, thickness, production site and intended application.

Why Choose HSQY as Your Frosted PP Sheet Supplier?

• 0.4mm frosted PP sheets for printing, packaging and stationery.

• Customized thicknesses from approximately 0.25mm to 5mm.

• Natural, white, black, transparent colored and opaque colored products.

• One-side and two-side frosted surfaces.

• Fine matte, coarse frost and customized embossing.

• One-side and two-side corona-treated printing grades.

• Offset, UV, screen and digital-printing options.

• Folding, die-cutting, punching and stationery grades.

• Anti-static, conductive, UV-stabilized and flame-retardant formulations.

• Samples for printing, folding, welding and finished-product testing.

• Customized sheet sizes, packing and shipping marks.

• International B2B production and delivery support.

Before bulk production, HSQY recommends testing the selected sheet using the customer's actual ink, printing machine, die-cutting tools, folding equipment, adhesives and finished-product construction.

Contact HSQY for Samples and Pricing

Frequently Asked Questions About 0.4mm Frosted PP Sheet

What is a 0.4mm frosted PP sheet?

It is a thin, semi-rigid polypropylene sheet with a nominal thickness of 0.4mm and a matte or textured surface.

Is 0.4mm equal to 400 microns?

Yes. A 0.4mm polypropylene sheet is equal to 400 microns.

Is 0.4mm PP sheet flexible or rigid?

It is generally semi-rigid. It can bend and fold while retaining sufficient body for folders, covers, boxes and dividers.

What is the difference between frosted and glossy PP sheet?

Frosted PP has a textured, lower-glare surface, while glossy PP has a smoother surface with stronger reflection and higher apparent shine.

Is frosted PP sheet transparent?

Natural frosted PP is normally translucent rather than optically transparent. Transparency depends on the resin, thickness, pigment and surface texture.

Does frosted PP diffuse light?

The textured surface can create a diffuse visual effect, but applications requiring defined optical performance should specify light transmission and haze.

Can frosted PP sheet be printed?

Yes. Printing-grade PP should normally receive corona treatment, flame treatment or a compatible primer to improve ink adhesion.

What printing methods can be used?

Suitable sheets can be UV offset printed, screen printed, UV inkjet printed, flexographically printed or digitally printed after testing.

What is corona-treated PP sheet?

It is polypropylene whose surface has been electrically treated to increase surface energy and improve ink, coating or adhesive wetting.

Does corona treatment last permanently?

No. The treatment level can decrease over time, so the surface should be tested before printing after extended storage.

Can the PP sheet be folded repeatedly?

A suitable PP grade can provide repeated-fold performance, but the resin, sheet direction, crease geometry and additives must be tested.

Can 0.4mm PP sheet be die cut?

Yes. It can be die cut, punched, slit and guillotine cut using suitable tooling and clearance.

Can PP sheet be RF welded?

Standard PP is generally unsuitable for conventional RF welding because it does not respond effectively to dielectric heating. Heat sealing or ultrasonic joining should be evaluated instead.

Can polypropylene sheet be ultrasonically welded?

Compatible PP-to-PP components can be ultrasonically joined, but semi-crystalline PP requires appropriate joint design and machine settings.

Is 0.4mm PP sheet suitable for file folders?

Yes. Its balance of flexibility, stiffness, moisture resistance and printability makes it suitable for many office and school folders.

Can it be used for packaging boxes?

Yes. It can be printed, die cut, creased and folded into lightweight packaging boxes after the structure and closure method are validated.

Is frosted PP sheet waterproof?

PP has very low water absorption and resists normal moisture exposure, but a complete box or folder is not automatically waterproof because seams and openings may allow water entry.

Is polypropylene chemically resistant?

PP resists many dilute acids, alkalis and cleaning agents, but compatibility depends on the exact chemical, concentration, temperature and exposure time.

Is every PP sheet food safe?

No. Food-contact suitability depends on the exact resin, pigments, additives, coatings, inks and intended conditions of use.

Does an SGS or RoHS report prove food-contact compliance?

Only a report covering the relevant food-contact regulation, formulation, food simulants and use conditions can support the applicable claim.

Is medical-grade PP available?

Specialized medical grades can be evaluated after the resin, additives, cleanliness, traceability, sterilization and regulatory requirements are specified.

Is anti-static PP sheet available?

Yes. Temporary or permanent anti-static grades can be developed according to the required resistance range and effective duration.

Is conductive PP sheet available?

Conductive PP grades are available for selected ESD and industrial applications, subject to resistance, grounding, color and mechanical requirements.

Is polypropylene sheet fireproof?

No. Standard PP is combustible. Flame-retardant grades require a specific formulation and test report for the applicable thickness and standard.

Is standard frosted PP suitable outdoors?

Standard PP is mainly intended for indoor use. Long-term outdoor applications require a UV-stabilized grade and weathering validation.

Is frosted PP sheet recyclable?

PP can be recyclable where suitable collection and processing systems exist. Inks, labels, coatings, fillers and attached components can affect compatibility.

What colors can be customized?

Natural, white, black, transparent colors and opaque colors can be matched using a Pantone reference or approved physical sample.

What sheet sizes are available?

Common sizes include 915 × 1830mm, 1220 × 2440mm and 1560 × 3050mm, with A4, A3 and customized cut sizes also available.

Is 2050 × 3050mm available?

This extra-wide size must be confirmed because availability depends on the production line, thickness, surface and actual effective width.

Can I obtain a sample?

Existing A4 samples, color swatches and printing samples may be available. Customized colors and functional grades may require trial production.

What is the production lead time?

Standard production generally requires approximately 7-10 days after the specification, sample, payment and packing are confirmed.

What information is required for a quotation?

Provide the thickness, dimensions, color, surface, printing treatment, converting process, functional grade, quantity, packing and destination.

Get a Frosted PP Sheet Quote

About HSQY Plastic Group

HSQY Plastic Group supplies frosted PP sheets, colored polypropylene sheets, clear PP sheets, heat-resistant PP sheets, PET sheets, PVC sheets and customized plastic materials to international B2B customers.

HSQY supports printing companies, stationery manufacturers, packaging converters, sign manufacturers, thermoforming companies, importers and distributors with material selection, color matching, samples, customized production, inspection and export packing.

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