EVA Greenhouse Film Thermal Insulation Agricultural Greenhouse Film Manufacturer

Product description:

EVA greenhouse film, short for ethylene-vinyl acetate copolymer greenhouse film, is a mid-to-high-end agricultural greenhouse film made from ethylene + vinyl acetate (VA) copolymer resin through a three-layer/five-layer co-extrusion process, with added heat-insulating, anti-drip, anti-fogging, and anti-aging additives. Its performance is between that of ordinary PE film and high-end PO film, making it the mainstream covering material for overwintering greenhouses.

Technical Parameters:

Advantages:

1. Superior Heat Insulation.

EVA molecules contain polar ester groups, achieving a blocking rate of over 78% for long-wave infrared heat radiation in greenhouses at night. Nighttime greenhouse temperatures are 2-3°C higher than with ordinary PE film, providing low-temperature frost protection and reducing winter heating costs.

2. Balanced Light Transmission, Soft Light That Doesn't Harm Seedlings.

Initial light transmission is 90%-92%, superior to PE film; it provides soft, diffused light, preventing strong sunlight from scorching fruit and vegetable leaves, enhancing photosynthesis throughout the day, and promoting flowering, fruit setting, and fruit coloring.

3. Long-Lasting Anti-Drip and Anti-Fog Effect, Reducing Diseases.

The hydrophilic additive within the film is evenly released, causing condensation inside the greenhouse to form a water film that flows smoothly down the greenhouse surface, eliminating dripping and white fog; the standard anti-drip and anti-fogging effect lasts for 24-60 months, significantly reducing downy mildew, gray mold, and fruit rot caused by high humidity.

4. Low-Temperature Flexibility, Tensile Strength, and Easy Construction.

It does not harden or crack in low-temperature environments; the film is flexible and easy to stretch to fit arched sheds and small arched sheds; it is puncture-resistant and wind-resistant, easy to install, and suitable for double-layer inner film covering of various simple arched sheds and greenhouses.

Product Application:

I. Crops to be Planted.

1. Autumn and Winter Vegetables: Tomatoes, cucumbers, peppers, eggplants, lettuce, celery, chives, and other warm-weather vegetables, protected from winter frost damage.

2. Early Spring Short-Term Fruits: Watermelons, cantaloupes, strawberries; planting in one season perfectly matches the drip and fog reduction cycle.

3. Flowers and Seedlings: Roses, chrysanthemums, succulents; seedlings and seedlings; gentle light protects seedlings and reduces diseases.

II. Applicable Regions and Greenhouse Types.

Regions: Winter greenhouses in northern regions; double-layered inner film greenhouses in cold and rainy southern regions.

Greenhouse Types: Single-unit cold greenhouses, solar greenhouses, small arched greenhouses, seedling greenhouses.