Formaldehyde and VOC in Decorative Film: Four Questions Before You Specify

Most decorative film pages claim to be green. Very few show the four pieces of evidence that actually decide whether a film belongs in a bedroom, a hospital corridor or a hotel lobby. The questions below are the ones we ask our own production team before a series is quoted, and the same questions apply to any supplier you are comparing us against.

1. What is the film actually made of?

This is the question that removes most of the argument. A conventional decorative film is a PVC compound: PVC resin plus plasticiser plus stabiliser. A PVC-free film replaces that base layer with polypropylene. Ours is a PVC-free, PP-based film, and the D1500 series is a five-layer PP construction - wear layer, print, PP base, adhesive, release liner.

Why it matters in practice: the plasticiser in a plasticised PVC film is the part that migrates, that gives new vinyl its characteristic smell, and that is the first thing an indoor-air consultant will ask about. Remove PVC from the construction and that discussion does not start. What you get instead is a film whose performance has to be argued on its own measured values, which is exactly what the next three questions are for. The full construction and property list is on the D1500 PVC-Free series page.

2. Which test method backs the emission claim?

An emission figure without a method is decoration. Two methods are worth knowing because European buyers ask for them by name:

• French Decree 2011-321 - the mandatory French labelling scheme for interior products, scored from A+ to C. SGS tested to French Decree 2011-321, VOC emission class A+ (report no. on request).
• GB 18580-2017 chamber method - the Chinese chamber test for formaldehyde release from interior materials. Formaldehyde not detected (GB 18580-2017 chamber method; batch report on request).

Both sentences above are the exact wording we publish, no stronger, and they come with documents rather than adjectives. If a supplier answers this question with a logo instead of a method and a result, treat the claim as unverified. Our own reading guide to the sections that matter in a supplier report is in what to check in an SGS test report.

3. What changes between production batches?

Every film on the market varies slightly, and the honest answers are the boring ones:

• 1220 mm nominal width
• Roll length 25 m or 50 m
• 0.15-0.25 mm thickness, which varies slightly by texture and colour
• five-layer PP construction, with the emboss and print matched to the reference sample

If a supplier quotes one thickness for a catalogue of forty textures, that number is a marketing figure, not a production figure. When you approve a sample, ask which of those four values is fixed and which one will move - and ask for the tolerance in writing, because that is what the second container will be judged against.

4. What are the on-site conditions it is rated for?

Emission is only half the specification. The other half is whether the film survives the room it goes into. These are the published values for the D1500 line:

Property	Value
Service temperature (interior)	-10 °C to 50 °C
Installation temperature	10-35 °C
Light fastness	blue wool grade 6
Shelf life	≤1 year from production date
Minimum order	From 1 roll (in-stock)
Lead time	Per order — confirm at enquiry

Two of those rows decide projects more often than the emission class does. A film applied at 5 °C in an unheated warehouse will not bond the way it did on the sample board, and a roll that has sat for eighteen months is not the roll that was approved. Both are installation and logistics questions, not chemistry - and both are covered in detail in the PVC-free versus traditional PVC film comparison.

Where these four answers change a specification

In a nursery, a school or a healthcare interior, the first question is not what the film looks like but what it releases and what it holds. For those projects the D1500 data set also includes: 19 soluble heavy metals not detected (EN 71-3; batch report on request) On the antibacterial option: Antibacterial rate >99.9% (ISO 22196; report on request). Flame-retardant versions available on request; grade confirmed against the test certificate for the delivered batch.

Wood-grain projects have a second option: the P800DM synchronised wood grain series uses an emboss matched to the printed grain, so the texture lines up with the pattern instead of sitting on top of it. The construction questions above apply to that series in the same way.

What to send us

If you are comparing two films for a project, send the substrate, the room type and the quantity. We will reply with the TDS for the series you are considering, the A4 swatch or short roll cut you need for the sample board, and the test reports that answer questions one and two. Everything else in this knowledge base - material notes, application guides and delivered cases - is indexed under Why PVC-Free.