Protective / Edge & Corner Protection / EPS Strips
EPS Strips for Edge & Corner Protection
EPS (expanded polystyrene) strips are lightweight protective components used to shield vulnerable edges, corners, and faces of products during handling, storage, and transport. By adding a sacrificial cushioning layer at the points most likely to chip, dent, or abrade, EPS strips help reduce damage from knocks, vibration, and compression inside cartons, on pallets, or in crates.
This collection focuses on EPS strip formats used as protective spacers and edge guards. They are commonly used for flat or rectangular items where the perimeter needs reinforcement—such as panels, framed goods, fabricated parts, and stacked products—especially when combined with stretch wrap, strapping, or outer cartons.
EPS Strips — Helpful Guide
Below is a practical guide to the EPS strip options in this category and how they are typically used in packaging. The best choice depends on what you are protecting (edge vs. face), how the load is handled (manual vs. palletized), and whether the main risk is impact, abrasion, or compression.
1) Long protective strips (edge/spacer strips)
Long EPS strips are used to create a protective buffer along an edge or to act as a spacer between products. They can be placed along one or more sides of an item before boxing or wrapping, or used between stacked layers to prevent surface-to-surface contact.
- 1220x80x20 - EPS Strips — A long strip format suited to edge buffering, layer separation, and creating consistent stand-off distance inside a carton or between stacked items. The 1220mm length is useful where continuous coverage is preferred over multiple short pieces.
2) Multi-piece EPS sets (pads/spacers for repeatable packing)
EPS sets are pre-defined assortments of pieces intended to build a repeatable packing pattern. They are often used when a product needs protection at multiple contact points (corners, edges, and faces) and when packers benefit from a consistent “kit” approach to reduce variability.
- 11 Piece 25mm thick EPS Sets LD100 Made up of 100 pieces sizes 586x386, 561x255, 361x255, 435x255, 255x235 & 50 pieces size 410x210 — A multi-piece set of 25mm thick EPS pads in several sizes, designed for building protective layers, corner/edge stand-offs, and repeatable cushioning layouts. Useful for packing workflows where the same product (or product family) is shipped frequently.
Where EPS Strips Fit in Protective Packaging
EPS strips are typically chosen when you need a combination of low weight and reliable cushioning. In many packaging systems, the outer carton provides containment, while EPS components manage the internal forces that cause damage:
- Impact protection: EPS compresses under sudden loads, absorbing energy and reducing peak forces transmitted to the product.
- Edge reinforcement: Edges and corners concentrate stress; adding thickness at these points reduces the chance of chipping or crushing.
- Separation and abrasion control: Spacer strips prevent rubbing between stacked items and help keep surfaces from contacting carton walls.
- Load distribution: Wider strips can spread contact pressure over a larger area, reducing localized dents or pressure marks.
Case Study: Reducing Edge Damage on Stacked Flat Products
A common damage pattern for flat products (panels, fabricated sheets, framed items, or boxed assemblies) is edge bruising and corner crush during pallet movement. The root cause is often a combination of minor impacts and compression from stacking or strapping.
A practical approach is to add continuous edge buffering and controlled stand-off distance so the outer packaging takes the abuse instead of the product. For example:
- Place long strips along the most exposed edges to create a protective perimeter.
- Add spacer pads at key contact points to keep the product centered and prevent carton-wall contact.
- Use consistent piece placement so every packed unit has the same protective geometry.
This type of layout can reduce variability between packers and helps maintain protection even when cartons are rotated, stacked, or handled by forklifts.
How to Choose the Correct EPS Strip Configuration
Selection is easiest when you start with the hazards and constraints of your shipment. Use the checklist below to narrow down the right strip type and placement.
Step 1: Identify the primary risk
- Edge chipping / corner crush: Prioritize edge coverage and thickness at corners; consider continuous strips along long edges.
- Surface scuffing / abrasion: Use spacer strips or pads to prevent product-to-product and product-to-carton contact.
- Compression from stacking: Use wider contact areas and ensure the load path goes through the EPS components rather than fragile product features.
- Vibration and movement: Use a snug layout that limits shifting; multiple contact points often perform better than a single strip.
Step 2: Decide on coverage strategy
There are two common strategies, and many packs use a hybrid of both:
- Continuous coverage: Long strips provide uninterrupted protection along an edge. This can be helpful for long, exposed edges and for maintaining consistent stand-off distance.
- Point protection: Pads/sets protect specific contact points (corners, mid-span supports, or face supports). This can reduce material use while still controlling the load path.
Step 3: Match thickness and contact area to the load
EPS performance depends on how much it compresses under load. As a general packaging principle, you want enough thickness to absorb shocks without “bottoming out” (compressing fully) and enough contact area to avoid high pressure points. If the product is heavy or stacking loads are high, increasing contact area (wider strips or multiple pads) can be as important as increasing thickness.
Step 4: Consider density/grade and repeatability
EPS is commonly specified by density (often expressed in kg/m³). Higher density grades generally provide higher compression resistance, while lower density grades are softer and may be better for light-duty cushioning. Some products may reference internal or supplier grades (for example, “LD” style designations); when comparing options, it is helpful to confirm the density and intended duty level for your application.
For repeat shipping of the same item, pre-defined sets can improve consistency and reduce packing time because the pieces and placement are standardized.
Best Practices for Packing with EPS Strips
- Keep the product centered: Ensure strips/pads maintain even gaps so the item does not touch carton walls.
- Protect corners first: Corners are frequent failure points; add reinforcement where impacts are most likely.
- Control movement: If you can shake the packed carton and feel shifting, add additional contact points or adjust fit.
- Avoid over-compression: Strapping or tight wrapping can crush low-density foam; use enough contact area to distribute strap pressure.
- Use clean, flat contact surfaces: Debris or sharp edges can create pressure points; ensure the EPS sits flush.
- Test and iterate: A simple drop/handling simulation can reveal whether you need more edge coverage, more thickness, or better immobilization.
Common Applications
EPS strips and sets are used across many industries wherever edges and faces need protection:
- Flat-packed goods and panels
- Framed items and assemblies
- Fabricated components with finished edges
- Stacked products requiring separation layers
- General carton cushioning and void management (as part of a broader pack design)
Storage, Handling, and Compatibility Notes
- Storage: Keep EPS components dry and away from excessive heat to maintain shape and performance.
- Dimensional fit: For repeatable packing, measure product dimensions and confirm that strip length/width provides the intended stand-off distance.
- Surface sensitivity: For highly polished or delicate finishes, ensure the contact points are clean and consider adding a protective wrap layer if needed.
- System approach: EPS strips work best when the outer carton, closure method, and internal layout are designed together.
Frequently Asked Questions
What are EPS strips used for in packaging?
EPS strips are used to protect edges and corners, create spacing between products, and absorb shocks inside cartons or on pallets. They help reduce chipping, denting, and abrasion by adding a lightweight cushioning layer at common impact and compression points.
How do I choose between a long strip and a multi-piece EPS set?
Choose long strips when you want continuous protection along an edge or consistent stand-off distance over a long span. Choose multi-piece sets when you need repeatable placement at multiple contact points, such as corners and faces, to immobilize products.
Does EPS density matter for edge and corner protection?
Yes. Density influences how the foam compresses under load. Lower-density EPS is softer and may suit light-duty cushioning, while higher-density EPS generally provides better compression resistance for heavier items or stacking loads. Confirm density and test for your handling conditions.
How should EPS strips be positioned inside a carton?
Position strips so they keep the product centered and prevent contact with carton walls. Prioritize corners and exposed edges, then add pads or additional strips to stop movement. The goal is a stable layout that absorbs impacts without allowing shifting.
Can EPS strips help with damage caused by strapping or stretch wrap?
They can. EPS strips can spread strap or wrap pressure over a larger area and provide a buffer at edges where straps concentrate force. To avoid crushing, use adequate contact area and ensure the foam thickness and grade suit the applied tension.