TempGuard Insulation sheet (M) 340 mm x 940 mm (42 pieces) - 100% recyclable

TempGuard insulation sheet (M) — 340 × 940 mm, pack of 42 pieces. A folded insulation inlay made of 100% paper that transforms a regular cardboard box into a fully functional cooler box. Fully recyclable, plastic-free, and custom folded for the Isolatiedoos (M) 300 × 300 × 300 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 liner that you place inside a cardboard box. When unfolded, the sheet lines the entire interior — bottom, walls, and top — so your product is surrounded on all sides by an insulating layer. Just like with styrofoam, it is the still air trapped in the material that blocks heat.

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

Specifications

• Sheet size: 340 × 940 mm
• Quantity per pack: 42 pieces
• Per pallet: 20 packs (840 sheets)
• Material: 100% paper, fully recyclable
• Fits with: Isolatiedoos (M) 300 × 300 × 300 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 longer cooling — gel packs 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 M size suitable for?

The M size is the most popular intermediate size and fits most cooled shipments: medium-sized packages of fresh fish or meat, dairy, meal boxes, chocolate, and pharmaceutical products. With the right gel packs, you can keep the contents 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 the honeycomb insulation box. 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.