TempGuard Insulation sheet (L) 370 mm x 1080 mm (36 pieces) - 100% recyclable

TempGuard insulation sheet (L) — 370 × 1080 mm, pack of 36 pieces. A folded insulation inlay made of 100% paper that transforms a large cardboard box into a fully functional cooler box. Fully recyclable, plastic-free, and custom folded for the Isolatiedoos (L) 355 × 355 × 355 mm. The sustainable alternative to styrofoam and EPS inlays.

What is a TempGuard insulation sheet?

A TempGuard insulation sheet is a flat, pre-folded paper insulation lining that you place inside a cardboard box. When unfolded, the sheet covers the entire interior — bottom, walls, and top — so your product is surrounded on all sides by an insulating layer. Just like styrofoam, the still air trapped in the material prevents heat transfer.

This provides an insulation value comparable to EPS (styrofoam/tempex), but made entirely of paper. After use, the sheet can simply be recycled with paper waste — no separate collection point, no residual waste. Additionally, the sheet absorbs shocks and captures some moisture during transport.

Specifications

• Sheet size: 370 × 1080 mm
• Quantity per pack: 36 pieces
• Per pallet: 12 packs (432 sheets)
• Material: 100% paper, fully recyclable
• Fits with: Isolatiedoos (L) 355 × 355 × 355 mm

How to use the sheet

1. Unfold two sheets and place them in the corresponding insulation box so that the bottom and walls are fully lined.
2. Place your product inside and add gel packs for extended cooling — gel packs go on top of the product, as cold air sinks downwards.
3. Fold the sheets over the contents and close the box. Pack as tightly as possible: the less empty space, the more stable the temperature.

What is the L size suitable for?

The L size is the largest, intended for bulky or heavy refrigerated shipments: larger meat and fish portions, full meal boxes, multiple products at once, or pharmaceutical shipments with more content. With the right gel packs, the contents stay at temperature for up to 48 hours, from chilled (2–8 °C) to frozen — without a refrigerated truck.

TempGuard sheet or pre-formed cooler box?

Choose the TempGuard sheets when you want to store compactly and keep your transport volume low: the sheets lie flat and you add insulation only when packing. If you want a box that is ready to use immediately, consider the Eco Coolbox or, for the longest shipments, our thermal boxes. For high-volume shippers with sustainability goals, a cardboard insulation box with TempGuard sheets often offers the lowest total cost per shipment. Unsure about the right size or quantity? Our specialists are happy to help.