Border Foam vs Foam Dressing with Silicone: Which to Stock
Border foam dressing vs foam dressing with silicone adhesive: sizes, per-piece prices, and stocking guidance for long-term care procurement.
The choice between a border foam dressing and a non-bordered foam dressing with silicone adhesive lands on almost every long-term care PAR review we do. Both formats sit in the same shelf, both are silicone-adhesive polyurethane foam, and both come from the same ZeniFOAM Gentle product family in our catalog. From a procurement standpoint they look interchangeable — but the two formats behave very differently on the cart, in the supply room, and at the bedside, and stocking the wrong mix is one of the most common reasons facilities either run short or pay for dressings that sit unused.
This guide is a procurement comparison, not a clinical one. Wound dressing selection is the responsibility of the wound care nurse, treating clinician, or facility protocol. Our scope is which SKUs to keep on the shelf, what sizes are available in each format, and what they cost per piece in our current catalog.
What the two formats actually are
The non-bordered foam dressing (FM_DRSS, our ZeniFOAM Gentle line) is a polyurethane foam pad with a silicone adhesive backing across the wound contact surface. There is no surrounding film or fabric border — the foam itself is the entire dressing. It is sold per piece, with the silicone holding the pad against the wound bed.
The border foam dressing (BFOAM-DRESSING, our ZeniFOAM Gentle Border line) is the same polyurethane foam core, but extended on all four sides with a thin film border that wraps around the foam pad. The silicone adhesive sits on the wound contact surface of the foam plus on the border itself, so the dressing self-secures around the wound margin without a separate tape job in many use cases.
The single-sentence procurement framing: the non-bordered foam is the foam pad; the border foam is the same pad plus the equivalent of a built-in tape frame. That difference drives everything below.
Border foam vs foam dressing at a glance
| Attribute | Foam dressing with silicone | Border foam dressing with silicone |
|---|---|---|
| Catalog parent SKU | FM_DRSS | BFOAM-DRESSING |
| Brand line | ZeniFOAM Gentle | ZeniFOAM Gentle Border |
| Adhesive | Silicone, wound contact face only | Silicone, wound contact face + film border |
| Secondary securement needed | Usually yes (tape or wrap) | Usually no — film border self-secures |
| Sizes we stock | 2×2, 4×4, 4×5, 4×8, 6×6 | 2×2, 3×3, 4×4, 6×6, sacral 7×7 |
| Dedicated anatomical shape | No | Yes — sacral 7×7 (ZEN-30077-S) |
| Per-piece price at 2×2 | $17.25 | $22.50 |
| Per-piece price at 4×4 | $40.50 | $37.50 |
| Per-piece price at 6×6 | $49.75 | $57.50 |
| Stocking format | Each, sold per piece | Each, sold per piece |
| Supplier of record | MedStream (preferred) | MedStream (preferred) |
Size range — where the two product lines diverge
The non-bordered ZeniFOAM Gentle family covers five sizes in our active catalog:
- ZEN-20022 — 2×2
- ZEN-20044 — 4×4
- ZEN-20045 — 4×5
- ZENIFOAM-4X8 — 4×8
- ZENIFOAM-6X6 — 6×6
The 4×5 and 4×8 rectangles are the differentiator on this side. If a wound is longer than it is wide — a sacral or trochanteric pressure injury that runs lengthwise, for example — the 4×5 or 4×8 rectangle conforms with less waste than trimming a square down to size. Facilities that do a lot of pressure injury management tend to over-index on these two SKUs.
The bordered ZeniFOAM Gentle Border family covers five sizes as well, but the mix is different:
- ZEN-30022 — 2×2
- ZEN-30033 — 3×3
- ZEN-30044 — 4×4
- ZEN-30066 — 6×6
- ZEN-30077-S — Sacral 7×7
The 3×3 in the bordered line has no equivalent in the non-bordered line. It bridges the gap between the very small (2×2) and the standard 4×4, and tends to be ordered for finger, toe, and small lesion coverage where 4×4 would be larger than the wound needs. The sacral 7×7 (ZEN-30077-S) is the other unique SKU — it is the only anatomically shaped dressing in either line, designed to fit the sacrum without trimming.
If your facility has a meaningful pressure injury census, the sacral 7×7 is the single SKU that has no substitute. Either you stock it or you don't have it.
What the prices actually say
Per-piece pricing across both lines, current as of this catalog snapshot:
| Size | Non-bordered (ZeniFOAM Gentle) | Bordered (ZeniFOAM Gentle Border) | Delta |
|---|---|---|---|
| 2×2 | $17.25 (ZEN-20022) | $22.50 (ZEN-30022) | +$5.25 bordered |
| 3×3 | — | $24.50 (ZEN-30033) | bordered only |
| 4×4 | $40.50 (ZEN-20044) | $37.50 (ZEN-30044) | −$3.00 bordered |
| 4×5 | $40.50 (ZEN-20045) | — | non-bordered only |
| 4×8 | $55.00 (ZENIFOAM-4X8) | — | non-bordered only |
| 6×6 | $49.75 (ZENIFOAM-6X6) | $57.50 (ZEN-30066) | +$7.75 bordered |
| Sacral 7×7 | — | $85.00 (ZEN-30077-S) | bordered only |
The headline procurement observation: the price gap between bordered and non-bordered is not consistent. At 2×2 and 6×6, the bordered SKU costs more per piece, which matches the intuition that you are paying for the extra film border. At 4×4, the bordered SKU is actually $3.00 cheaper per piece than the non-bordered SKU. That inversion is real in our current catalog and it is the reason the 4×4 mix is one of the most common places facilities end up over-paying — defaulting to the non-bordered 4×4 out of habit when the bordered 4×4 is both more functional (self-securing) and lower priced.
Stocking guidance
A facility-level PAR mix that holds up for most long-term care customers we serve looks roughly like:
- 2×2: stock the non-bordered ZEN-20022 as the base for small wounds where the dressing will be covered by another wrap, and stock the bordered ZEN-30022 for finger, toe, and small lesion coverage where the dressing has to self-secure.
- 3×3: bordered only. The ZEN-30033 fills the gap between 2×2 and 4×4 and is worth carrying as a small dedicated PAR line.
- 4×4: default to the bordered ZEN-30044. It is the lower-priced SKU in this catalog snapshot and the self-securing border eliminates a tape step.
- 4×5 and 4×8: rectangular sizes are non-bordered only. Stock based on pressure injury census.
- 6×6: choose based on whether the wound needs the film border for securement. Bordered is the higher-priced option at this size, so do not default into it without a reason.
- Sacral 7×7: bordered only. Either you have a pressure injury workload that needs it, in which case the ZEN-30077-S is unsubstitutable, or you can skip the SKU entirely.
The other practical detail: both families are sold per piece, not per case. That means you can build a granular PAR without committing to case-pack increments — useful for facilities with low pressure injury census who do not want to tie up shelf dollars in larger sizes.
When the format choice is actually meaningful
The border vs no-border question matters most in two scenarios. First, when the dressing has to stay in place without secondary securement — the bordered film does the work that tape or a wrap would otherwise have to do, and the labor savings per dressing change add up across a multi-resident pass. Second, when the dressing is being placed on an anatomically awkward surface (sacrum, heel, elbow) where a flat square dressing would shift — here the bordered line, and specifically the sacral shape, is the only option.
When the dressing is going under a secondary cover dressing or wrap anyway, the non-bordered SKU is doing all the work the bordered SKU would do, and the bordered film border is wasted. That is the use case where the non-bordered line is the right call.
FAQ
Are border foam dressings and foam dressings with silicone adhesive interchangeable?
From a procurement standpoint, they are alternates within the same product family — both are silicone-adhesive polyurethane foam, both are sold per piece, and both come from the ZeniFOAM Gentle line. They are not substitutes at the dressing change itself, because the bordered SKU includes the film border that handles securement and the non-bordered SKU does not.
Do I need to stock both?
Most long-term care facilities benefit from carrying both lines. The non-bordered line covers the rectangular sizes (4×5, 4×8) that the bordered line does not, and the bordered line covers the anatomical shape (sacral 7×7) that the non-bordered line does not. The decision is not which line to stock, but what the per-size mix should be.
Why is the bordered 4×4 cheaper than the non-bordered 4×4 in your catalog?
That price relationship reflects current supplier pricing from MedStream on the two SKUs. Catalog prices can shift, but as of this snapshot the ZEN-30044 (bordered 4×4) is priced at $37.50 and the ZEN-20044 (non-bordered 4×4) is priced at $40.50. Facilities defaulting to the non-bordered SKU at 4×4 are paying more per piece than they would for the bordered alternative.
Are these dressings sold by the case?
Both families are sold per piece in our catalog. That means you can build a per-size PAR without buying full cases of any single size, which is helpful for low-volume sizes like the sacral 7×7.
Who supplies these dressings?
Both families are supplied through MedStream as our preferred supplier of record. The ZeniFOAM brand line covers both the bordered and non-bordered SKUs.
The bottom line
If you only have time for one stocking change after reading this: review your 4×4 mix. If your facility is defaulting to the non-bordered 4×4, the bordered 4×4 in our current catalog is both lower priced and self-securing — that is the single highest-leverage swap available between these two product lines today. Beyond that, the choice between BFOAM-DRESSING and FM_DRSS comes down to securement needs and the specific sizes your wound care workload requires.