9/3 2026
Five product types share the name "bandage" — and procurement errors caused by confusing them result in clinical complaints, tender rejections, and costly reorders every year. This guide provides a complete technical profile for each type, a side-by-side comparison tool, and a substitution rules matrix that tells you exactly when you can swap and when you cannot.
A 2022 review of procurement complaints submitted to a major GCC medical distributor found that bandage specification errors accounted for 34% of all return-to-supplier claims across consumable categories — second only to expiry-date discrepancies. The root cause in the majority of cases was not supplier dishonesty. It was ambiguous purchase orders that used the term "elastic bandage" without specifying whether the product needed to be a light-support crepe, a PBT dressing-retention bandage, or a high-compression long-stretch format.
The five bandage types covered in this guide are genuinely distinct products — different raw materials, different manufacturing processes, different clinical applications, and different regulatory classifications. Understanding the technical differences is not a clinical exercise; it is a procurement competency that determines whether the product your organisation receives is the product it actually needs.
| Bandage Type | Primary Function | Cannot Replace | CE Classification |
|---|---|---|---|
| Crepe / Elastic | Light compression, joint support | High-compression therapy | Class I (self-declaration) |
| PBT Conforming | Dressing retention over contours | Compression bandages | Class I (self-declaration) |
| Cohesive | Self-adherent wrap — no clips | Compression therapy | Class I (self-declaration) |
| Plaster of Paris | Rigid orthopaedic casting | Any non-casting application | Class IIa (Notified Body) |
| High-Compression | Sustained limb compression therapy | Light support applications | Class IIa (Notified Body) |
Woven from cotton or cotton-viscose blend using a crepe weave that builds natural elasticity into the fabric structure itself — no synthetic elastic yarn required. The characteristic crinkled surface provides light compression when applied with moderate tension and conforms reasonably well to limb shapes. The most widely purchased bandage type globally by volume, appearing in hospital ward supplies, first aid kits, physiotherapy clinics, and sports medicine.
Width selection is the most critical decision. A 5cm crepe bandage is appropriate for wrist, hand, and paediatric lower limb. A 10cm bandage is standard for adult knee and calf. Ordering only one width for all applications is a common cost-cutting decision that results in clinical compromise — a 10cm bandage on a wrist is clinically awkward; a 5cm bandage on a thigh is inadequate.
BP-grade crepe requires a Certificate of Analysis documenting thread count, extensibility, and width tolerance against the BP monograph. This is a non-negotiable requirement for NHS supply, GCC hospital tenders, and most Commonwealth healthcare procurement frameworks. A supplier who cannot provide a lot-specific BP CoA is not producing BP-grade product — they are producing product of unknown specification and applying the BP label commercially.
PBT (polybutylene terephthalate) is a synthetic polyester fibre with exceptional elastic recovery properties. Woven in an open mesh structure, PBT bandages can stretch to 150–200% of their resting length and return almost completely to their original dimensions. This combination of extreme extensibility and high elastic recovery allows PBT bandages to conform perfectly to complex, irregular body contours — knuckles, heels, head, face, and chest — where cotton crepe would wrinkle, bunch, or fail to maintain contact. Dominant bandage format in European hospital procurement for wound dressing retention.
The visual similarity between PBT and cotton crepe in product photographs causes more specification errors than any other bandage substitution. Both are rolled, both are tan or white, and both appear under the broad label "conforming bandage" in many catalogue systems. The clinical and mechanical differences are significant:
| Property | PBT Conforming | Cotton Crepe |
|---|---|---|
| Extensibility | 150–200% | 60–90% |
| Elastic recovery | >85% | 40–60% |
| Conformity to contours | Excellent — follows body curves | Moderate — wrinkles on curves |
| Compression delivered | None (designed for retention) | Light compression |
| Breathability | High (open weave) | Moderate |
| Latex content | Latex-free | Check with supplier CoA |
| BP monograph | No BP monograph (EN standard) | BP Appendix XX B |
| BP-referencing tenders | May not meet tender spec if BP specified | Meets BP if CoA provided |
The practical rule: use PBT when the clinical need is dressing retention over irregular surfaces. Use cotton crepe when light support or compression is the clinical goal. Never substitute one for the other without reviewing the clinical application first.
Cohesive bandages are coated with a pressure-sensitive adhesive that bonds the bandage to itself but not to skin, clothing, or hair. This self-adhesion eliminates the need for clips, pins, or tape to secure the end of the bandage — a significant advantage in paediatric care, sports medicine, and any setting where patient movement is a factor. Available in latex (standard) and latex-free (non-latex or synthetic) formulations, and in a wide range of colours. The latex-free segment is growing rapidly in institutional procurement as latex allergy protocols tighten.
The adhesive system in cohesive bandages is the latex risk point — not the fabric substrate. Standard cohesive bandages use natural rubber latex as the cohesive agent. For latex-sensitive patients (prevalence approximately 1–6% of the general population, significantly higher in healthcare workers with chronic exposure), contact with latex-coated bandage can trigger reactions ranging from contact dermatitis to anaphylaxis.
Institutional procurement policies in most EU markets, the NHS, and many US healthcare systems now require latex-free cohesive bandages across all patient-contact applications unless clinically justified. When specifying cohesive bandages, always state "latex-free" explicitly in the purchase order and require a CoA confirming the adhesive composition. "Latex-reduced" or "low-protein latex" are not equivalent to latex-free — do not accept these as substitutes in latex-sensitive clinical environments.
Plaster of Paris bandages are cotton gauze impregnated with calcium sulphate hemihydrate (CaSO₄·½H₂O). When wetted, the calcium sulphate rehydrates and crystallises into calcium sulphate dihydrate (gypsum), locking the gauze in a rigid form that hardens progressively over 24–72 hours. The resulting cast immobilises fractures and post-surgical orthopaedic sites. PoP remains the dominant casting material in GCC, South Asian, and developing-market hospital orthopaedic departments despite competition from synthetic fibreglass and polyester casting tapes — primarily on cost and familiarity grounds.
Plaster of Paris has a critical vulnerability that differentiates it from all other bandage types: premature moisture exposure triggers partial setting in the roll, rendering it unusable. A PoP bandage exposed to high ambient humidity during storage will develop a hardened core or irregular texture that prevents uniform spreading during casting. BP specification includes a setting time test specifically because degraded product sets inconsistently.
Specify humidity-sealed (foil or poly-laminate) individual packaging for all PoP procurement. The slight unit cost premium over paper-wrapped formats is recovered many times over in reduced wastage. Inspect a sample of rolls upon receipt — a good roll unwinds smoothly with uniform powder coating throughout; a degraded roll has lumpy, partially set areas along its length.
High-compression elastic bandages are woven from cotton with latex or synthetic elastic yarn integrated throughout the fabric to provide sustained compression of 150–200% extensibility and high elastic recovery. Unlike light-support crepe, these bandages are designed to maintain consistent compression pressure over time — resisting the pressure drop that occurs as a limb moves and the bandage accommodation cycle begins. When labelled with a compression class (Class 1–4 per European standard), these are Class IIa medical devices requiring Notified Body CE certification and clinical validation data.
| Compression Class | Pressure at Ankle | Clinical Application | CE Classification |
|---|---|---|---|
| Class 1 (Light) | 10–20 mmHg | Mild varicose veins, tired legs, travel compression | Class I or IIa depending on labelling |
| Class 2 (Moderate) | 20–36 mmHg | Moderate varicose veins, post-thrombotic syndrome, prevention | Class IIa (Notified Body) |
| Class 3 (Strong) | 36–46 mmHg | Severe varicose veins, venous leg ulcer treatment | Class IIa (Notified Body) |
| Class 4 (Very Strong) | >49 mmHg | Severe lymphoedema, elephantiasis | Class IIa (Notified Body) |
Select any two bandage types to compare their key technical and procurement parameters side by side.
Use this matrix to determine whether a substitution is clinically and procurement-acceptable. Rows represent the product you currently have specified; columns represent the product you are considering substituting in.
| You have → Substitute with | Crepe / Elastic | PBT Conforming | Cohesive | Plaster of Paris | High-Compression |
|---|---|---|---|---|---|
| Crepe / Elastic | — | ⚠ Conditional OK for dressing retention; not for support/compression |
⚠ Conditional OK for retention; latex-free check required |
✗ No Cannot replace rigid casting |
✗ No Crepe does not deliver therapeutic compression |
| PBT Conforming | ⚠ Conditional OK on straight sites; not for complex contours |
— | ✓ Generally OK Cohesive provides retention; confirm latex policy |
✗ No | ✗ No PBT does not provide compression |
| Cohesive | ⚠ Conditional OK with clips or tape to secure; no self-adhesion |
✓ Generally OK Better conformity; latex-free by default |
— | ✗ No | ✗ No Cohesive does not provide therapeutic compression |
| Plaster of Paris | ✗ No | ✗ No | ✗ No | — | ✗ No No elastic bandage creates rigid cast |
| High-Compression | ✗ No Crepe cannot deliver compression therapy |
✗ No | ✗ No | ✗ No | — |
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