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40 Mesh HDPE Insect Netting
A lightweight 40 mesh HDPE insect net that keeps fruit flies, moths and larger pests out while maintaining strong airflow — the most widely used specification for greenhouse sidewalls, roof vents and open-field tunnels.
- Airflow first — The open 40 mesh weave keeps air moving, reducing humidity and fungal pressure in dense crops.
- Light and easy — At 20 GSM the rolls are light, quick to handle and simple to tension on existing frames.
- Real UV life — Stabilized resin tested under UV aging before shipment; not a surface coating.
- Factory direct — Woven in our own factory — no trading margin, stable lead time, OEM packing available.
Product Overview
CROPBASTION 40 mesh HDPE insect netting is woven from 100% virgin high-density polyethylene monofilament on our own water-jet and rapier looms. At 20 GSM with an open 1.4 mm mesh, it is one of the lightest specifications we produce: the open weave delivers reliable exclusion of larger pests together with the ventilation that greenhouse crops need — the reason 40 mesh remains the best-selling specification for vegetable and fruit production.
Because the net is UV stabilized during extrusion, not coated afterwards, it keeps its strength through years of sun exposure. Every roll is inspected for mesh count, GSM, opening size and width before packing, and can be supplied in custom widths and lengths for direct installation on greenhouse frames, net houses and hoop tunnels.
Specifications
| Product | 40 Mesh HDPE Insect Netting (40 × 25 per inch) |
|---|---|
| Mesh opening | 1.4 mm |
| Weight | 20 GSM (approx. 20 g/m²) |
| Width | 1 m – 3 m (custom width available) |
Need a different mesh count, width or color? Send us your specification and we will quote the closest standard size or a custom production run.
Target Pests
- Fruit fly, melon fly and other fruit flies
- Moths, butterflies and caterpillars
- Beetles, bugs and larger flying insects
- Aphids and larger leaf-feeding insects
- Birds when used as a full house cover
Not sure which mesh matches your pest pressure? Tell us the pests you need to control and we will recommend the right mesh count.
Typical Applications
- Greenhouse sidewalls, roof vents and doors
- Net houses for vegetables and berries
- Hoop tunnels and low tunnels
- Orchard and vineyard row covers
Why Buy This Specification from CROPBASTION
Airflow first
The open 40 mesh weave keeps air moving, reducing humidity and fungal pressure in dense crops.
Light and easy
At 20 GSM the rolls are light, quick to handle and simple to tension on existing frames.
Real UV life
Stabilized resin tested under UV aging before shipment; not a surface coating.
Factory direct
Woven in our own factory — no trading margin, stable lead time, OEM packing available.
CROPBASTION has been weaving HDPE insect netting for 28 years, with mesh, weight and opening size checked on every production batch before shipment.
Frequently Asked Questions
What size insects does 40 mesh netting block?
40 mesh has an opening of 1.4 mm, so it reliably blocks larger pests such as fruit flies, moths, beetles and birds, along with most aphids, while allowing smaller insects like thrips and whitefly to pass. If those are your target pests, choose 60 mesh or finer.
Will 40 mesh netting reduce airflow in my greenhouse?
No — 40 mesh is one of the most open specifications we produce, and at 20 GSM it is also one of the lightest. Ventilation and light transmission stay high, which is why it is commonly used on greenhouse sidewalls and roof vents.
How long does 40 mesh HDPE insect netting last?
With UV-stabilized virgin HDPE and normal installation, expected outdoor service life is 3–5 years. We recommend re-tensioning after the first season and avoiding sharp edges during installation.
Can you supply custom width and length?
Yes. Standard widths are 1 m to 3 m; wider covers can be sewn from panels. Rolls can be cut to your required length and packed with your own label for OEM orders.
What is the MOQ and lead time?
MOQ is 1 roll for stock specifications and 500 kg for custom widths or colors. Standard lead time is 7–15 days after deposit, depending on quantity.
Related Insect Netting
Get Factory Price for 40 Mesh HDPE Insect Netting
Send us mesh count, width, length and quantity — we reply with price, lead time and free sample details within 24 hours.