Convatec SFN DH Moldable Convex Wafer Baseplate 57 mm Large Stoma Box of 10 404594

Product Overview

The ConvaTec SUR-FIT Natura Durahesive Moldable Convex Skin Barrier with Flange (404594) is an advanced ostomy baseplate engineered for ostomates whose stoma sits flush with or below the skin surface. The convex profile applies gentle pressure around the peristomal area to improve stoma protrusion and promote a more reliable seal, which is critical in managing liquid and semi-liquid effluent from ileostomies and urostomies.

ConvaTec Moldable Technology eliminates the need for scissors or templates. The user simply rolls the starter hole outward to match the exact stoma diameter (33–45 mm range), achieving a custom fit that minimises exposed skin and reduces the risk of peristomal moisture-associated skin damage (MASD). The white fabric tape collar increases flexibility and comfort under clothing while securing the barrier to the skin. Once attached, the SUR-FIT Natura snap-lock flange system provides audible confirmation of a secure pouch connection.

Specifications

Clinical Indications

• Post-surgical colostomy, ileostomy, or urostomy management requiring a two-piece pouching system with convex barrier support
• Flush or retracted stomas where a flat skin barrier fails to maintain adequate seal integrity
• Patients with liquid or semi-liquid effluent who require a hydrocolloid barrier that swells to prevent undermining (Durahesive turtlenecking)
• Peristomal skin folds, creases, or irregular body contours that benefit from moldable convex geometry
• Long-term ostomy care in community, outpatient, and home-nursing settings in Singapore and South-East Asia

Frequently Asked Questions

Q: What is the difference between Durahesive and Stomahesive skin barriers?
A: Durahesive barriers are formulated to swell upward (turtleneck) on contact with liquid output, making them the preferred choice for ileostomies and urostomies where effluent is predominantly liquid. Stomahesive barriers are designed for formed-to-semi-formed output typical of many colostomies. The World Council of Enterostomal Therapists (WCET) recommends matching barrier chemistry to output consistency for optimal peristomal skin protection.

Q: How do I size the moldable opening correctly?
A: Place the starter hole over the stoma and gently roll the opening outward with your fingers until it matches the stoma base diameter. No scissors or measuring guide is required. ConvaTec Moldable Technology allows the hydrocolloid edge to conform snugly around the stoma, minimising the gap between the barrier and the mucocutaneous junction.

Q: Can the 57 mm flange wafer be used with any SUR-FIT Natura pouch?
A: The 57 mm flange is compatible with all SUR-FIT Natura pouches that carry a matching 57 mm (2¼″) coupling ring. The system uses a colour-coded flange identification (green for 57 mm) and provides an audible click to confirm secure attachment. Always verify the flange colour code before connecting.

Q: Is this product available for purchase by healthcare facilities in Singapore?
A: Yes. This ConvaTec 404594 wafer is registered with the Health Sciences Authority (HSA) of Singapore and available for B2B procurement through EMIS. Bulk pricing and standing-order arrangements are available for hospitals, nursing homes, and home-care agencies. Contact EMIS for institutional quotations.

Q: How often should the skin barrier be changed?
A: According to the Wound, Ostomy and Continence Nurses Society (WOCN), skin barriers should be changed when leakage occurs or at regular intervals based on individual assessment—typically every 3 to 7 days for convex barriers. Premature erosion, lifting edges, or peristomal irritation are signs that a change is needed sooner.