Void Fillers: Definition, Types, Uses, and Examples

Void fillers are necessary packaging materials used for the primary purpose of filling voids that exist within shipping containers. This helps reduce the movement of products as they are transported. Businesses ship millions of packages daily, which makes proper void filler solutions critical for protecting merchandise while maintaining cost efficiency in today’s current market setting. 

This is why void fill materials are essential for product safety and economic packaging practices. There exist various materials used as void fill materials, which range from modern materials, used as packing peanuts and bubble wrap.

What are Void Fillers?

Void fillers are also known as void filling and are protective packaging used inside shipping boxes to fill the void between products and the sides of the boxes. They play an important role in ensuring products are not damaged by impact by ensuring they do not come into contact with each other as they are being transported. They help to disperse any impact and play an important role in ensuring the products are not damaged. They are used in major industries such as retail and warehousing.

How Void Fillers Work in Packaging Systems?

The function of void fillers is based on three fundamental mechanisms that work to ensure a product is well protected on all sides. These packaging supplies, materials fillers absorb shocks and protect the product from impacts, which might come from dropped containers and rough handling when goods are without protection.  Void fillers fix goods in place to prevent movement within containers, to ensure that products are not damaged due to rubbing and friction caused by a lack of positioning within packages. 

Types of Void Fillers Used in Packaging

There are many types of void fillers available for the packaging industry that come with various properties to suit different purposes. Choosing the right one is based on factors such as the delicacy of the product and scale of shipment, whether traditional or specialized, and environmentally friendly alternatives for void fillers are considered.

• Paper-Based Void Fillers

Paper fillers used for void filling are crinkled paper, kraft paper, and corrugated pads. These are made from recyclable or virgin paper materials. Paper fillers are very economical, lightweight, and work best for filling irregular voids between products. 

They are effective shock-absorbing materials and offer good aesthetic appeal, which makes them useful in ecommerce and retail packaging. Paper fillers are also biodegradable and recyclable, and their use is environmentally friendly.

• Wraps

Wraps include bubble wrap and stretch wrap, which are typically designed for products directly before final placements in containers. This flexible package material molds around goods, which protects them from damage and scrapes. 

Bubble wrap has pockets containing air, which provides protection, while foam materials are tear-proof and act to shield goods from damage.

• Foam Void Fillers

The foam void fillers comprise foam sheetings and foam-shaped insert void fillers. They are known for giving maximum shock protection. They come with adjustable density, and they adapt ideally to the items they are packed with. 

They offer effective positioning and shock dampening. They are perfect for packing valuable electronic and medical devices, although they come with a higher price tag.

• Packing Peanuts

Packaging peanuts are lightweight and cushioning materials that come in polystyrene and biodegradable starch formulas. They are very effective in filling voids and offer excellent shock resistance. 

The newer biodegradable type disperses in water, which provides an environmentally-friendly option for those concerned with disposal issues. Packaging peanuts is cost-effective for larger shipments.

Common Uses of Void Fillers Across Industries

Void fillers are essential for providing protective functionalities in different types of industries. Each with its own specific packaging needs and challenges for void fillers. It is helpful for organizations to comprehend the specific application areas and choose the most suitable void filler option. 

This is for the requirements of the business while ensuring compliance with regulations and customer expectations regarding cost and quality.

• E-Commerce and Retail Packaging

Ecommerce companies rely on void filler materials to protect their shipment contents during the last-mile delivery process, which entails package drops and handling. Retailers apply crinkled paper and biodegradable peanuts to package clothes and accessories to keep them safe in shipping boxes. 

Void fillers improve ecommerce unwrapping experiences by appealingly arranging products while keeping them safe. Increasing public demands for sustainable packaging have made recycling-friendly and compostable void filler materials a new trend for online shops.

• Electronics and Fragile Goods Shipping

Electronics manufacturers and distributors protect sensitive devices from shock and electrostatic discharge by using high-quality fillers like foam inserts, bubble wraps, and custom mold packaging.

Anti-static foam and conductive materials line the packaging to protect circuit boards from electrical damage. Superior void fill solutions since the value of the products is higher, which justifies higher material costs through reduced damage rates and warranty claims.

• Food and Beverage Packaging

Food and beverage businesses use food-safe void fillers to protect their glass bottles and other sensitive packaging from breakage during the packaging and repacking processes. Individual items can be separated using corrugated dividers and paper-based packaging materials that can withstand various impact types. 

Products sensitive to temperature undergo insulated void packing to ensure the preservation of the cold chain. The packaging of gourmet food baskets and the distribution of ready meal kits can benefit greatly from the use of void fillers that can hold items upright.

• Cosmetics and Personal Care Products

Cosmetics companies use void fillers to protect glass bottles and delicate applicators. Tissue paper and kraft paper, as well as print-void filler material, all add to cosmetic brand aesthetics. 

Cosmetic subscription boxes use colorful void fillers as aesthetic components to go along with product showcases. The components are useful in keeping leakages in bottles, supporting delicate mirrors within compacts, and ensuring product safety throughout shipping. 

• Pharmaceutical and Medical Supplies

Pharma manufacturers demand proven void fill solutions that ensure item sterility and regulatory requirements are met during delivery. Void fill materials ensure the purity and the safety of medical instruments during shipping for medical devices and breath pillows. 

Temperature-sensitive pharmaceuticals are packaged with insulated void fill packaging featuring gel packs or dry ice to preserve their temperature-sensitivity and sterility during transport to pharmacies or healthcare facilities, or institutions for patient use.

• Automotive and Industrial Parts

The automotive suppliers protect the heavy items, such as brake components and electronic modules, using high-density foam and corrugated supports that prevent shifting of items in the container. 

The industrial packaging of parts demands high-performance void fillers that can resist heavy weight and protect the items from collisions during the transport of goods. Molded foam inserters accurately locate the part, with the goal of avoiding damage to the machined surfaces.

How to Choose the Right Void Filler for Your Products?

The right choice of a void filler depends on various variables, which include product fragility, weight, and value. Cost-effectiveness can be determined by the balance between material costs and potential damage rates, and customer satisfaction. Lightweight fillers reduce charges in dimensional weight. 

Match the product requirements with the characteristics of the void filler, such as more delicate items will want premium cushioning, while durable goods accept budget-friendly solutions. Also, consider using custom box inserts to keep your products securely positioned during shipping. 

Examples of Void Fillers

Understanding the use of void filler in practical applications is essential for businesses to apply effective packaging techniques. These examples make it clear that different types of void fill materials are designed to work with unique packaging dilemmas. The products stay protected in any size or weight during the entire process of distribution.

• Small Products In Large Boxes

Air pillows or crinkle paper fill the space surrounding small products in large boxes to prevent shifting and center small products within large boxes.

• Fragile Items Requiring Cushioning

The bubble wrap packaging and foam inserts offer various levels of shock protection for the protection of glassware and other electronics.

• Multi-Item Shipments

Products that are packed separately in boxes and are separated with shredded paper and corrugated dividers.

• Heavy Products With Empty Space

Heavy-density foam block or inflatable bag support is used for heavy support with space in large containers.

• Regular-Shaped Products

The packing peanuts expand easily to protect regularly shaped objects such as bottles or boxes, which creates a complete protective sphere with no waste.