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Our PVA: Planet Value Added

Sengong is a next-gen PVA materials company founded on the vision to make eco-friendly materials as accessible as possible to the world. We believe sustainable products should be affordable, inclusive, and scalable — not expensive or exclusive.

Explore Our Materials

Our Starting Point

When we saw how our oceans were clogging up with waste that shouldn’t be there — and nobody was responsible for it — we knew a new approach was needed. Sengong’s name combines ‘Sen’ (forest) and ‘Gong’ (industry), meaning ‘a material industry designed to work with the forest’.

We’re not here to start a material revolution. Instead, we focus on practical, user-driven solutions. Consumers value convenience and may not recycle consistently. That’s why we’ve evolved biodegradable PVA into an affordable, accessible, and scalable solution.

PVA isn’t new — it’s been around since 1912. But it was expensive. We’ve made it cost-effective, recyclable, reusable, and fully biodegradable without relying on food-based resources like corn.

Sustainable Manufacturing Environment

Our PVA Material Portfolio

Over 130 unique formulas engineered for diverse applications — from consumer goods to industrial packaging and environmental restoration.

EcoFilm Pro

EcoFilm Pro

High-strength water-soluble film for industrial packaging and detergent pods.

  • • 100% biodegradable in 46 days
  • • No microplastics
  • • Tensile strength: 80 MPa
  • • Dissolves at 20–85°C
AgriShield

AgriShield

Soil-stabilizing film for agriculture, reforestation, and desertification control.

  • • Enhances soil nutrient retention
  • • Biodegrades into CO₂ + H₂O
  • • UV-resistant variants available
  • • Custom thickness: 15–100μm
CleanWrap

CleanWrap

Single-use packaging film for detergents, agrochemicals, and cosmetics.

  • • Eliminates plastic waste
  • • Water-soluble in cold/hot water
  • • Odorless & non-toxic
  • • FDA-compliant variants
Certified Green Film

GreenCert Film

Certified eco-film with full EIA compliance and traceable sourcing.

  • • Backed by EIA reports
  • • ISO 14001 certified
  • • Carbon footprint verified
  • • 75% lower cost than imports
FlexiFilm

FlexiFilm

Flexible, multi-layer PVA film for complex packaging needs.

  • • Multi-layer drying tech
  • • High-speed production
  • • Customizable solubility
  • • 4x faster delivery
OceanSafe Film

OceanSafe Film

Designed to degrade rapidly in marine environments without microplastics.

  • • Marine biodegradable
  • • Breaks down in seawater
  • • Safe for aquatic life
  • • 75% degradation in 46 days
ReFilm

ReFilm

Recyclable PVA film for closed-loop industrial systems.

  • • Reusable in multiple cycles
  • • Recyclable via dissolution
  • • Low-energy recovery
  • • Ideal for factories
ThermoFilm

ThermoFilm

Heat-resistant PVA film for high-temperature applications.

  • • Stable up to 120°C
  • • IR-heated drying process
  • • Uniform thickness
  • • Energy-efficient

Why Choose Sengong PVA?

Fully Biodegradable

PVA is the only polymer that bacteria can use as a carbon source, degrading by 75% in 46 days without microplastics.

High Efficiency

Our in-house engineered lines produce films up to 4x faster than competitors, with 20,000-ton annual capacity.

Locally Sourced

Raw materials sourced locally in China reduce shipping dependency and lower costs by up to 75%.

No Food Resources

Unlike corn-based bioplastics, our PVA doesn’t compete with food supply chains.

Energy Efficient

We recycle waste steam from a nearby power plant, achieving 80% energy reuse and 50% lower energy costs.

25+ Patents

Backed by over 25 patents in material science, manufacturing, and application design.

Sustainability That Scales

We believe sustainability must be affordable, accessible, and measurable. Our green manufacturing process ensures real environmental impact without premium pricing.

Green & Lean Manufacturing

  • Waste Steam Recycling: 80% energy reuse from nearby power plant reduces carbon footprint.
  • Infrared Drying: Advanced heat recovery cuts energy costs by 50%.
  • 30,000m² Plant: One of few global manufacturers with 20,000-ton annual capacity.
  • EIA Approved: Environmentally responsible operations verified by government authorities.
Sustainable Factory Operations
20,000
Tons Annual Capacity
25+
Patents Held
130+
Unique Formulas
75%
Lower Cost vs Imports

Frequently Asked Questions

Is PVA really biodegradable?

Yes. PVA is the only polymer that bacteria can use as a carbon source. It degrades by 75% in 46 days in standard conditions.

Does PVA create microplastics?

No. When PVA dissolves and degrades, it breaks down into carbon dioxide and water — not microplastics.

Where is your manufacturing plant?

Our manufacturing plant is located in Linyi, Shandong Province, China.

Can PVA be recycled?

Yes. PVA can be dissolved and reused in multiple cycles. At end-of-life, it can be applied in agricultural soil enhancement.

Do you offer custom formulations?

Yes. We offer over 130 unique formulas and can engineer custom solutions for specific solubility, strength, and temperature needs.

Get in Touch

Whether you have questions about our PVA films, need technical support, or want to explore partnership opportunities, we're here to help.

Sales & Support

Hotline: +86 539 5770986

Email: davidsun@sengongkeji.com, wangpengxiang@sengongkeji.com

WhatsApp:

  • David Sun: +86-13181493199
  • Jinyu Liu: +86-17753923451
  • Yanqing Peng: +86-18669913729
  • Pengxiang Wang: +86-19258396368

Headquarters: No. 901, No. 1 Building, Guangming Hengtaiyu Building, Shenzhen

Manufacturing Plant: Linyi, Shandong Province, China

Visit Official Website

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