Non-Adherent Dressing: What It Is, Types and FDA Class

This page describes products and general use; it is not medical advice.

A non-adherent dressing is a wound covering with a contact layer designed not to stick to the wound surface, so it can be lifted away with less disturbance of the tissue beneath. This page covers what the product class is, which constructions exist and how regulators treat it.

What a non-adherent dressing is

A non-adherent dressing is a primary dressing: the layer placed directly on the wound. Its purpose is low adherence to the wound bed, not absorbency. Many products pair a non-stick contact layer with a thin absorbent pad, and the pad is then held in place by a secondary dressing or wrap. “Non-adherent” describes how the contact surface behaves; it does not mean the product absorbs a lot of exudate, and it does not mean it never sticks.

Under U.S. regulation, the general gauze or sponge placed directly on a wound is defined in 21 CFR 878.4014 as a device intended for medical purposes, “such as to be placed directly on a patient’s wound to absorb exudate” (21 CFR 878.4014(a), text checked 2026-10-30 at law.cornell.edu).

How it is built

Most designs have two functional parts. The contact layer is the surface against the wound: a perforated film, a mesh coated with petrolatum or paraffin, a fibre layer carrying a petrolatum emulsion, or a net coated with silicone gel. Some products add a backing pad that takes up fluid passing through the perforations.

The GMDN term used in the FDA’s AccessGUDID record for one Telfa pad is “Wound-nonadherent dressing, absorbent, non-antimicrobial” (GMDN code 46854), with the definition excerpt “A wound covering typically in the form of a multi-layered pad”, with the definition continuing that the pad has a material on its skin-contact surface to prevent adherence to the wound bed (AccessGUDID record, checked 2026-10-30). The same record shows the product as no longer in commercial distribution after 2025-12-31.

Types and variants

The table lists constructions that appear by name in the FDA records and the trial cited on this page. It is not a ranking.

Type	Example in a source	Key difference	Source
Perforated-film pad with absorbent core	Telfa “Non-adherent Absorbent Dressing”, 3 in x 2 in, sterile, single use	Film contact layer over an absorbent pad; GUDID lists it as not labeled as containing natural rubber latex	AccessGUDID record, checked 2026-10-30
Paraffin-impregnated gauze	Jelonet	Gauze mesh carrying paraffin; was the comparator in the trial below	Terrill and Varughese, J Wound Care 2000
Petrolatum-emulsion cellulose acetate	Adaptic	Open fibre mesh carrying a petrolatum emulsion	Terrill and Varughese, J Wound Care 2000
Silicone-gel polyamide net	Mepitel (510(k) K914604, “non-adherent silicone dressing”)	Soft silicone coating on a net	Terrill and Varughese; openFDA 510(k) record
Antimicrobial non-adherent	Silver alginate non-adherent dressing (510(k) K081363); an island dressing listing 0.2% PHMB in GUDID	Contains an added antimicrobial, which changes its FDA classification (see below)	openFDA 510(k) and AccessGUDID records, checked 2026-10-30

For one brand in this family, see what Adaptic is. For woven and nonwoven gauze, which is a different product class, see what gauze is.

How FDA classifies non-adherent dressings

There is no single FDA product code called “non-adherent dressing”. The openFDA classification database (checked 2026-10-30) and 510(k) records show products of this kind cleared under several codes:

• NAB, “Gauze / Sponge, Nonresorbable For External Use”: Class I under 21 CFR 878.4014, general controls, exempt from premarket notification subject to the limitations in 21 CFR 878.9. The Mepitel non-adherent silicone dressing (K914604, decision 1992-03-25) is recorded under NAB.
• FRO, “Dressing, Wound, Drug”: class “unclassified” in openFDA. The 21 CFR 878.4014 definition excludes gauze that “contains added drugs such as antimicrobial agents”. A non-adherent antimicrobial alginate dressing (K081363, decision 2008-09-24) is recorded under FRO.
• NAD, “Dressing, Wound, Occlusive”: Class I under 21 CFR 878.4020.
• Other legacy codes: the 1997 510(k) for a “Dukal non adherent dressing” (K970455) is recorded under product code EFQ.

The practical consequence is that the label “non-adherent” is a description of function, and the regulatory pathway depends on the construction and on whether the product contains a drug or antimicrobial.

What the one randomized trial found

A randomized trial of 99 patients with hand-surgery wounds compared three primary non-adherent dressings: paraffin-impregnated gauze (Jelonet), petrolatum-emulsion cellulose acetate (Adaptic) and silicone-gel polyamide net (Mepitel) (Terrill and Varughese, J Wound Care 2000;9(8):359-63, PubMed 11933363, checked 2026-10-30).

• Adaptic was easier to remove than Jelonet (p<0.01), with less soaking, less pain and less maceration (each p<0.05), but harder to apply (p<0.05).
• Mepitel was easier to remove than Jelonet, but the difference was not statistically significant; it was harder to apply than Jelonet (p<0.05).

This is a single trial on hand surgery wounds only, so it should not be generalized to other wound types or products.

Labels, sterility and handling facts

• The manufacturer’s instructions for use for the exact product state whether it is sterile or single use; this page does not replace them.
• Sterile status differs by product. The Telfa GUDID record lists the pad as sterile and single use, while one clear non-adherent film dressing record lists sterile as false.
• Latex labeling is recorded per product: the Telfa record is not labeled as containing natural rubber latex.

Common misunderstandings

• Non-adherent does not mean absorbent. The contact layer is the point of the product; any absorbency comes from a separate pad or secondary layer.
• Non-adherent does not mean never sticking. It means reduced adherence: in the trial above, the three dressings differed significantly in how easily they came off.
• Most are not self-adhesive. Most are primary dressings that rely on a secondary dressing or wrap to stay in place.
• Different product classes. Non-adherent contact layers, plain gauze and self-adherent wraps are different products; see the wound care supply selection guide for how they fit together.

FAQ

How do you apply a non-adherent dressing?

This page does not give application steps. Orientation, fixation and change frequency are set by the manufacturer’s instructions for use for the specific product and by the treating clinician. What the published trial above recorded is that two of the three contact-layer dressings it tested, Adaptic and Mepitel, were rated harder to apply than paraffin-impregnated gauze (p<0.05), so ease of application differs between constructions.

Is a non-adherent dressing the same as gauze?

No. Plain gauze is an open woven or nonwoven mesh of cotton cellulose or a simple derivative under 21 CFR 878.4014, while a non-adherent dressing adds or substitutes a contact layer meant to reduce sticking. Some non-adherent products are built on gauze.

Is a non-adherent dressing sterile and single use?

It depends on the product. The Telfa AccessGUDID record lists sterile packaging and single use; another listing for a clear film dressing shows sterile as false. Check the package.

What does FDA class a non-adherent dressing fall under?

There is no single class. Plain nonresorbable gauze products are Class I under 21 CFR 878.4014 (product code NAB); versions with added antimicrobials appear under “Dressing, Wound, Drug” (FRO), which openFDA lists as unclassified.

Sources

• 21 CFR 878.4014, Nonresorbable gauze/sponge for external use: law.cornell.edu/cfr/text/21/878.4014 (checked 2026-10-30).
• openFDA device classification and 510(k) databases: api.fda.gov/device/classification.json (checked 2026-10-30).
• AccessGUDID record for Telfa non-adherent absorbent dressing: accessgudid.nlm.nih.gov/devices/10884521083196 (checked 2026-10-30).
• Terrill PJ, Varughese G. A comparison of three primary non-adherent dressings applied to hand surgery wounds. J Wound Care 2000;9(8):359-63: PubMed 11933363 (checked 2026-10-30).

Related reading: wound care clinic supply checklist. Dressing categories are also listed under wound dressings.