Bio Pins Twist

Biodegradable Spiral Ground Pins for Secure Mulch Fixing

Agrimpex Bio Twist Pins are biodegradable ground fixing pins made from a potato starch-based material. Designed for securing mulch fabrics, natural fibre mats and other ground-covering materials, they offer a practical alternative to conventional plastic fixing pins.

Their distinctive spiral-shaped shaft allows the pins to screw into the soil, creating a secure and stable hold. This construction helps prevent the pins from being pushed out of the ground, even under challenging weather conditions.

Bio Twist Pins are designed to maintain their mechanical strength in the soil for approximately 12 months before gradually biodegrading under suitable environmental conditions.

Key Benefits

• Biodegradable material – made from a potato starch-based material designed to gradually biodegrade in soil.
• Spiral anchoring design – the twisted shaft screws into the ground, providing secure fixation of mulch materials.
• Reliable ground stability – helps prevent accidental withdrawal caused by soil movement and changing weather conditions.
• Approximately 12 months of durability – maintains its functional strength in soil for around 12 months under normal conditions.
• Gradual biodegradation – breaks down over time depending on soil moisture, temperature and microbial activity.
• Easy installation – can be screwed into the ground by hand or carefully driven in using a hammer.
• Two natural-looking colours – available in brown and beige to complement different mulching materials.
• Suitable for biodegradable mulches – particularly useful with natural-fibre groundcovers and biodegradable mulching products.

Applications

Bio Twist Pins are suitable for securing various mulching materials in gardening and horticultural applications.

Biodegradable Mulch Fabrics

The pins can be used to anchor biodegradable groundcovers, helping maintain the correct position of the material during cultivation.

Natural Wool and Hemp Mats

Ideal for securing Agrimpex Bio Wool, Bio Hemp Cover and other natural-fibre mulching products to the soil.

Vegetable and Fruit Cultivation

Suitable for fastening mulching materials around vegetables, strawberries, berry bushes and other cultivated plants.

Ornamental Gardens and Landscaping

The brown and beige colour options blend naturally into ornamental planting areas and mulched garden beds.

Spiral Design for Secure Fixing

The spiral shaft allows the pin to rotate as it enters the ground, providing effective anchoring.

This shape helps minimise accidental withdrawal, even when soil movement causes the pin to rise slightly. If necessary, the pin can be carefully pushed or tapped back into place.

Durability and Biodegradation

Bio Twist Pins retain their strength during normal use for approximately 12 months in soil.

After this period, the material gradually biodegrades through biological processes. The rate of decomposition depends on moisture, temperature, soil conditions and microbial activity.

During prolonged sunlight exposure, the pins may gradually become lighter in colour or show slight surface pigment changes. According to the manufacturer, this does not affect their mechanical strength.

How to Use

1. Spread the mulching material evenly over the prepared soil.
2. Position the pins approximately 5 cm from the edge of the material.
3. Space the pins approximately 1 m apart, adjusting the spacing to soil conditions and wind exposure.
4. Screw the pins into the soil by hand or carefully drive them in using a hammer.
5. Make sure the fixing head holds the material securely against the ground.
6. If soil movement causes a pin to rise slightly, gently tap it back into position.

Technical Specifications

• Product type: Biodegradable spiral ground fixing pin
• Material: Potato starch-based material
• Length: 150 mm
• Width: 68 mm
• Construction: Spiral-shaped shaft
• Colours: Brown, Beige
• Functional durability in soil: Approximately 12 months
• Biodegradability: Gradual biodegradation in soil
• Main application: Securing mulching materials

Agrimpex Bio Twist Pins – secure spiral fastening with gradual biodegradation after use.