Question 1

What plastic is used for greenhouses?

Accepted Answer

Greenhouse cladding film is multi-layer LDPE/LLDPE coextruded film, typically 150–200 μm thick, with UV stabilisers and IR-blocking additives. The films last 3–5 seasons depending on UV exposure intensity (Mediterranean vs Northern European climates). EVA-modified layers improve thermicity (heat retention) and an anti-drip coating manages condensation that would otherwise drip on crops.

Question 2

Why is mulch film black?

Accepted Answer

Black mulch film blocks sunlight and prevents weed germination — that's the primary agronomic function. The carbon black pigment (typically 2% loading in LLDPE) also provides UV stability so the film survives a single growing season under direct sun. Coloured mulch films (silver, white-on-black, IR-reflective green) target specific crop and pest applications, but plain black remains the workhorse.

Question 3

Is silage wrap recyclable?

Accepted Answer

Yes. Silage stretch-wrap film (LLDPE) is collected by farmer cooperatives and recyclers across Europe — programmes like APE Europe, ERDE in Germany, and ADIVALOR in France handle several hundred thousand tonnes annually. The recycled output goes into garbage bags, agricultural irrigation pipe, and other non-food-contact applications. Clean, dry collection is the main quality determinant.

Question 4

What's biodegradable mulch film made of?

Accepted Answer

Biodegradable mulch films are typically PBAT/PLA blends or PHA-based polymers, formulated to break down into CO₂, water and biomass under the EN 17033 in-soil disintegration standard. Major suppliers include Novamont (Mater-Bi), BASF (Ecoflex/Ecovio) and TotalEnergies. These films cost 2–4× conventional LLDPE mulch, but eliminate film-removal labour and reduce field plastic accumulation — an EU CAP incentive driver.

Question 5

Which polymers are most common for agricultural film?

Accepted Answer

Most common materials are Low-Density Polyethylene, Linear Low-Density Polyethylene. Choice depends on regulatory requirements, mechanical performance, and cost target.

Question 6

What regulations apply?

Accepted Answer

Key regulations include EN 13655 (mulch), EN 13207 (silage). Suppliers must provide a Declaration of Compliance documenting that the specific grade meets the applicable standards.

Question 7

What lead times can I expect?

Accepted Answer

Distributor stock items: 1–3 days. Producer-direct prime: 1–4 weeks. Off-spec or near-prime spot lots: same week. Plan inventory accordingly.

Polymers for agricultural film

Recommended polymers

Regulatory considerations

Frequently asked questions

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