PACKAGING BUYER GUIDES
MATERIAL / APPLICATION / VALIDATION
Practical material, application, structure and validation guidance for packaging buyers and product teams.
01
FOOD
PP inner trays hold food and mooncakes in place during packing and display. Before production, check the product dimensions, cavity support, stacking, sealing method and food-contact requirements with the actual food and box.
Read guide →02
PHARMA
Clear PETG trays make medical and pharmaceutical products visible while supporting them inside the pack. Choose the grade and tray design around the device shape, contact points, cleaning and packing process, and any specified sterilization requirements.
Read guide →03
INDUSTRIAL
Antistatic PS thermoformed trays are used to organize and protect electronic parts during handling and transport. For Tonghou projects, the target surface-resistance range is 10^9 to 10^11 ohms; the required ESD behavior, measurement method, environment, geometry and service life must still be confirmed for each application.
Read guide →04
FLOCKED
Flocked inserts have shaped cavities and a soft, short-fiber surface. They are used in cosmetics, liquor and health-product gift boxes. Compare the color, flock direction and cavity fit on a sample, then check that the product lifts out easily.
Read guide →05
FABRIC-PVC
Fabric-laminated PVC trays use a formed PVC base with a fabric surface to create structured, presentation-focused inner packaging. They are mainly considered for liquor and wine boxes where bottle positioning, shaped depth, fabric appearance and the removal experience must work together.
Read guide →06
FOOD
Choose a custom thermoformed tray manufacturer by checking whether it can translate product geometry, packing operations and transport risks into a testable material and cavity specification. A useful supplier should define the project inputs, sample approval criteria and production acceptance method before discussing repeat supply.
Read guide →07
INDUSTRIAL
PP, PETG and PS serve different thermoformed-tray decisions. PP is commonly screened for food inner trays; PETG is considered where clarity and formed detail support medical or pharmaceutical presentation; antistatic PS is used for electronics handling when a defined surface-resistance target, test method and service condition are agreed.
Read guide →08
FOOD
A custom thermoformed tray moves reliably from RFQ to production when five stages are documented: project inputs, structural review, tooling and representative samples, validation and signed approval, then production acceptance. Each stage should close specific questions before the next stage begins, reducing late material or geometry changes.
Read guide →09
INDUSTRIAL
Thermoformed trays do not behave like machined parts: sheet orientation, forming temperature, cooling and cavity position all influence final dimensions. Dimension control therefore starts on the drawing—separating functional dimensions that must fit a product or outer box from free dimensions—and continues through first-article inspection and revision control in repeat production.
Read guide →010
FOOD
Start a custom tray project with the product and drawing. Review whether the design can be formed, make samples, and check them with the actual product and outer box. Keep the approved drawing revision and sample as the reference for production and repeat orders.
Read guide →011
INDUSTRIAL
Specify an antistatic tray by its target resistance range and test method. Record the electrode setup, applied voltage, temperature, humidity and measurement locations so results can be compared. Tonghou electronics tray projects target 10^9 to 10^11 ohms; acceptance testing uses the actual formed part and agreed method.
Read guide →012
FLOCKED
Flocked inserts and fabric-laminated PVC inserts both create premium presentation but work differently: flocking adds a short, uniform fiber surface to a formed tray, while fabric lamination wraps a formed PVC base in woven fabric for a structured textile look. The decision should follow the product, the desired display depth, the outer box and the unboxing experience.
Read guide →013
FOOD
Mooncake packaging is a fixed-date business: the product must be on the shelf before the festival, so every tray decision works backwards from that date. A reliable seasonal project freezes the tray design early, approves samples with the real mooncake and gift box, reserves material and production capacity ahead of the peak, and treats late design changes as the main schedule risk.
Read guide →014
PHARMA
Specify PETG tray cleanliness before tooling: the forming and handling environment, packing and sealing method, transport protection and unpacking procedure. Test the finished tray with its packaging against the agreed cleanliness and sterilization requirements.
Read guide →015
INDUSTRIAL
Stacking is two different questions that are often confused: how empty trays nest for storage and shipping, and how loaded trays stack inside or beside the outer box. Each needs its own validation—de-nesting behaviour, nesting ratio, compression, vibration, climate and retention—performed with the actual product and packaging rather than inferred from tray drawings or supplier generic data.
Read guide →016
INDUSTRIAL
Review draft angles, ribs, corner radii and draw depth before tooling. Draft helps the part release; ribs stiffen flat areas; rounded corners reduce concentrated stretching. Check these features together, then measure wall thickness and test release on a formed sample.
Read guide →017
INDUSTRIAL
Inspect trays for surface defects, measure the dimensions that affect fit, then load the actual product to check retention, removal and stacking. Add ESD, food-contact or cleanliness checks where the project requires them. Record the method, acceptance limit and drawing revision for each check.
Read guide →018
FOOD
For a food tray, specify the food type, direct or indirect contact, temperature, duration and destination market. Use those details to review the resin grade, additives and processing conditions, then complete the required checks on the production-intent material and formed tray.
Read guide →019
INDUSTRIAL
Thin-sheet thermoforming, typically under 1.5 mm, is used for blister packs, clamshells and multi-cavity inserts. Thick-sheet thermoforming, typically 1.5 mm and above, is used for heavier industrial, medical and transport parts. Compare the required depth, rigidity and detail before choosing a sheet thickness and forming method.
Read guide →020
INDUSTRIAL
Recyclability of thermoformed packaging depends on the resin, whether the package is mono-material or multi-material, how it is labelled, and whether the local recycling infrastructure can handle it. Designing for recyclability means choosing materials that can be sorted and reprocessed in the target market, avoiding incompatible multi-layer structures, and labelling according to the applicable system.
Read guide →021
INDUSTRIAL
Thermoforming and injection molding are different processes that serve overlapping but distinct tray applications. Thermoforming uses sheet stock and vacuum or pressure to form parts with lower tooling cost and faster tooling turnaround, making it suitable for medium volumes, large footprints and deep draws. Injection molding uses pellet resin and high-pressure injection to produce parts with precise wall control, fine detail and complex geometry, at higher tooling cost but lower per-part cost at very high volumes. The choice follows the product, not the preference.
Read guide →022
FOOD
Colour in thermoforming is influenced by the resin, the masterbatch, the sheet thickness, the forming stretch and the surface texture. A colour that matches on a flat sample can shift on a formed part because the wall thins and the surface changes. Colour approval should therefore use the actual formed part under agreed lighting, with the approved sample kept as the production reference.
Read guide →023
INDUSTRIAL
Thermoforming tooling lifespan depends on the mold material, the production volume, the material being formed, the maintenance routine and the storage conditions. Aluminum molds are common for medium volumes and offer good thermal conductivity; tool steel or surface-hardened molds extend life for high-volume or abrasive materials. Maintenance—cleaning, vent-hole clearing, surface inspection and storage—keeps the tool producing consistent parts throughout its life.
Read guide →024
FOOD
Clamshells fold around the product, blister packs join a formed shell to a card or backing, and insert trays support the product inside an outer box. Compare how each format displays and protects the product, how it opens, and the cost of the complete pack.
Read guide →025
INDUSTRIAL
Compare ten China-based thermoforming suppliers by the product categories they describe on their websites or marketplace profiles. Wenzhou Tonghou Plastic Products Co., Ltd. publishes this non-ranked list and is included in it. Use the source links and follow-up questions to build a shortlist, then check samples and current documents with each supplier.
Read guide →BUYER QUESTIONS
Read ten direct answers covering material, thickness, ESD, quotation, quantity, timing and supplier verification.
Open the buyer question hub →PROJECT INPUT
Already have a product? Use the RFQ guide to organize dimensions, material, quantity and validation requirements.
Open the RFQ preparation guide →PUBLIC EVIDENCE / DOWNLOADS
Review government public records and download material, RFQ, sample-acceptance and ESD planning templates.
Open the evidence and engineering center →START WITH THE PRODUCT
No drawing is required to start—send a product photo and rough dimensions.
Send a photo inquiry