Compostable and Fully Biodegradable Extrusion/Thermoforming Materials for Sustainable Rigid Packaging

Universal Light X and Universal Dark X: Truly Sustainable Materials for a Circular Economy

Solinatra introduces two extrusion-grade materials that meet the growing demand for truly sustainable rigid packaging. Universal Light X and Universal Dark X are 100% natural, plant-based, compostable, fully biodegradable designed for sheet extrusion applications such as trays, punnets, plant carriers and more.

These innovative biopolymers are free from fossil-based ingredients and engineered to fully disintegrate in compost, leaving no microplastics behind. Ideal for brands in foodservice, horticulture, and consumer packaging, both grades support a low-impact transition to plastic-free, renewable alternatives without sacrificing performance or quality.

Proven Results in Extrusion & Thermoforming

Solinatra’s extrusion materials are not just designed for sustainability—they are built for production performance. Extensive trials in sheet extrusion and thermoforming environments show that both Universal Light X and Universal Dark X deliver commercial value across multiple production metrics.

Key performance results include:

1. Fully compatible with standard extrusion and thermoforming equipment

2. High-precision forming with sharp detail, comparable to polystyrene (PS)

3. Lower energy consumption than PET or PS, due to lower processing temperatures

Production trials demonstrated:

1. Up to 20% reduction in material weight compared to PS

2. Up to 27% increase in output capacity

3. Up to 40% recyclability, suitable for skeletal waste and regular production scrap

These results translate into significant cost and efficiency gains for converters, reinforcing why Solinatra’s material value compares favourably to conventional plastics. Beyond sustainability, Solinatra offers a compelling reason to switch; better performance where it matters most.

Universal Light X

Light-toned, compostable material for food contact applications.

Universal Light X is a safe, clean solution for white or coloured packaging. It is certified as food contact compliant and compatible with natural pigments for custom colouring.

Key Features

1. 100% Natural

2. Certified food contact safe

3. Optimised for white or coloured product lines

4. Can be colour-matched using natural masterbatches

5. Designed to disintegrate end of life without leaving microplastics.

Application Examples

This material is ideal for food packaging and single-use service ware where clean appearance and brand trust matter most.

Universal Light X material used in food tray, food punnet, food pot, and cold drink lid.

Universal Dark X

Robust, naturally pigmented biopolymer for darker-toned products.

Universal Dark X offers excellent compatibility with earth-toned and performance-based designs. Its colour and composition are suited to outdoor, utility, or horticultural settings where durability and sustainability must align.

Key Features

1. 100% Natural

2. Suitable for darker-coloured products

3. Designed to disintegrate end of life without leaving microplastics

4. Suitable for composting 

Application Examples

A practical alternative for sectors such as landscaping, farming, and garden retail seeking to eliminate conventional plastic trays and containers.

Universal Dark X materials used in plant pot, propagation tray, plant carrier, and feeder tray.

Material Benefits and Processing Advantages

Both Universal Light X and Dark X are formulated for standard extrusion/thermoforming processes, enabling manufacturers to switch from fossil-based plastics with minimal operational changes.

Performance Highlights

1. Compatible with existing equipment

2. Certified compostable (EN 13432 or equivalent)

3. Free from fossil-derived content

4. Designed for rigid, thin-wall applications

These grades are backed by Solinatra’s end-of-life claims and testing—ensuring not only functional product use but also safe return to nature after disposal.

Supporting a Circular Economy with Renewable Extrusion Materials

Solinatra’s extrusion biopolymers are made from natural ingredients and contain agricultural waste materials, not food crops. They are part of a new generation of regenerative packaging solutions that go beyond recyclable plastics; enabling compostability, reducing carbon emissions, and aligning with global plastic phase-out regulations.

For product designers, converters, and brand owners, these grades offer clarity, performance, and a compelling story to communicate to conscious consumers.

Interested in transitioning to compostable extrusion/thermoforming materials?

Contact the Solinatra team to access technical data sheets, sample material, or guidance on integrating these grades into your existing product lines.