Skin prep wipes are sterile, disposable products designed to prepare the skin for medical adhesives used with devices like continuous glucose monitors, ostomy devices, or wound care tapes. These wipes contain a liquid solution with film-forming agents like copolymers or acrylates. The primary function is to establish a protective interface between the skin and the adhesive device, protecting the skin from injury while improving the adherence of the medical product.
How the Protective Barrier Works
The liquid in the wipe is a polymeric solution dispersed in a rapidly evaporating solvent, often alcohol-based or silicone-based. When applied to intact skin, the solvent quickly volatilizes, usually within 30 to 60 seconds. This evaporation leaves behind a thin, transparent, and breathable polymer film that adheres firmly to the skin surface.
This polymer layer serves a dual purpose for skin integrity and product function. The film acts as a mechanical shield, protecting the epidermis from the trauma of adhesive stripping and friction during device removal. The film also creates a uniform, slightly tacky surface that enhances the stickiness of the applied adhesive. This barrier helps increase the overall wear time of the medical device.
Step by Step Guide to Application
The process begins with thorough preparation of the skin area intended for adhesive application. Use a mild soap and water or a designated skin cleanser to remove oils, lotions, or residue. Ensure the skin is completely dry before proceeding, as the area must be clean and free of moisture for the barrier film to bond properly.
Next, open the individual packet and gently apply the wipe across the intended site. Aim to cover a uniform area that slightly exceeds the size of the adhesive device. Apply the barrier with a single, gentle pass, avoiding scrubbing the skin or applying multiple thick layers immediately.
Proper drying time directly impacts the product’s effectiveness. The film needs time for the solvent to fully evaporate, which generally takes around 30 seconds, though this varies by product. The surface should feel tacky to the touch but not wet before the next step.
Applying the adhesive device too soon traps the solvent, which reduces the film’s protective qualities and compromises the adhesive bond. If the application site involves a skin fold, gently separate the skin until the film is completely dry to prevent the treated areas from sticking together. Once the barrier film is dry and tacky, the medical tape, dressing, or sensor should be placed directly over the treated area.
Tips for Successful Use and Removal
To maximize the efficacy of the skin prep wipe, ensure the application site is relatively hair-free, as excess hair can prevent the barrier from forming a complete seal. If the adhesive device will be placed over a joint or moving area, apply the adhesive without tension to avoid creating creases that could peel the film.
Skin prep wipes should only be used on intact and healthy skin. Never apply the film directly to open wounds, broken skin, or deep puncture wounds, as this is a contraindication for use. If you notice signs of irritation or redness after application, discontinue use immediately.
The adhesive on the device will eventually lift the polymer barrier film upon removal, requiring reapplication each time the device is changed. While the film often comes off with the adhesive, any remaining white, flaky residue can be gently removed with soap and water or a specialized adhesive remover wipe. Silicone-based adhesive removers are effective options for dissolving stubborn residue without causing further skin stripping.