Stoma paste works as a caulk, not a glue. Its job is to fill in uneven skin surfaces around your stoma so your skin barrier (wafer) sits flush against the body, reducing the risk of leaks. Understanding this distinction is the single most important thing about using it well, because applying it like an adhesive is the most common reason it fails.
What Stoma Paste Actually Does
Think of stoma paste the way you’d think of caulk around a bathtub. It fills gaps and creates a smooth, even surface so your skin barrier can form a proper seal. If you have creases, folds, scars, or dips in the skin surrounding your stoma, output can channel through those uneven spots and get under your wafer. Paste fills those channels before they become leak paths.
Because paste is not an adhesive, using too much can actually interfere with a good seal. The wafer itself is the adhesive component. Paste just smooths the terrain underneath it.
Step-by-Step Application
The standard method, based on manufacturer guidelines from Hollister, works like this:
- Prepare your skin barrier. Peel the liner off your new wafer. Apply a small bead of paste along the inner edge of the skin barrier opening, right where the wafer will sit closest to your stoma.
- Let it sit briefly. While the paste rests on the wafer, use that time to remove your used pouch and clean your skin. Some people find the paste performs better after sitting for a short time before contacting the skin.
- Clean and dry your skin. Wash the peristomal area thoroughly and dry it completely. Paste won’t stick well to damp or oily skin.
- Fill problem areas. If you have specific dips, creases, or uneven spots near your stoma, apply additional paste directly to those areas on your skin.
- Apply your wafer. Press the skin barrier into place as you normally would.
How Much Paste to Use
Less is more. A flat bead about 2 to 3 millimeters thick around the appliance opening is a good target. For width, picture the diameter of the tube’s screw-top cap. That’s roughly how wide the bead should be. You’re creating a thin gasket, not a thick layer.
If you squeeze out a generous ribbon like toothpaste, you’ve used too much. Excess paste creates a soft, mushy layer that actually prevents the wafer from gripping your skin. The result is the opposite of what you want: more leaks, not fewer. Start with a thin bead and only add more at your next change if you notice output still finding a path through.
Where to Apply It
You can apply paste to the wafer, directly to your skin, or both. The choice depends on what problem you’re solving.
For a general seal, applying a bead around the inner edge of the wafer opening is usually enough. This creates a ring of filler that sits right against the base of your stoma when you press the wafer on.
For specific trouble spots, like a deep skin crease on one side of your stoma or a scar that creates a channel, apply paste directly to that area on your skin before pressing the wafer down. You’re essentially filling a pothole so the road is level. A wet finger can help you smooth the paste into the crease without it sticking to you.
Alcohol-Free vs. Standard Paste
Traditional stoma paste contains alcohol, which helps it set and firm up. The tradeoff is that alcohol stings on broken or irritated skin. If you’re already dealing with redness, raw patches, or skin breakdown around your stoma, an alcohol-based paste will hurt going on.
Alcohol-free options, like Coloplast’s strip paste, skip that ingredient entirely. They won’t sting on contact, which matters a lot when your peristomal skin is already compromised. The texture is slightly different: alcohol-free paste tends to be softer and more pliable, almost like modeling clay in strip form. It molds into skin folds easily but doesn’t firm up the same way.
If your skin is healthy and intact, either type works. If your skin is sore, go alcohol-free.
Removing Paste Residue
When you change your appliance, you’ll often find dried paste stuck to your skin. Don’t scrub it off or pick at it aggressively. Repeated skin trauma in the peristomal area leads to breakdown, and once the skin is damaged, getting a good seal becomes harder with every change.
An adhesive remover spray or wipe dissolves the residue so it lifts away without friction. Sting-free formulas exist specifically for sensitive or already irritated skin. Spray the remover at the edge of the residue, give it a few seconds to work, and then gently wipe. Any remaining thin film that doesn’t come off easily can typically stay. A fresh wafer will adhere over a small amount of residue without problems.
Paste vs. Barrier Rings
Stoma paste and barrier rings (sometimes called seal rings or mouldable rings) solve the same problem in different ways. Paste is best for filling small, specific imperfections: a crease here, a dip there. Rings provide a uniform seal all the way around the stoma and work well when the skin is relatively even but you need extra protection against undermining from liquid output.
Many people use both. A ring provides the main seal, and a small amount of paste fills any remaining gaps the ring doesn’t reach. If you find yourself using large amounts of paste to build up the entire perimeter, a barrier ring might be a better primary solution, with paste reserved for spot-filling.
Rings also have the advantage of being easier to apply. You warm them in your hands, stretch them to the right size, and press them around the stoma opening on the wafer. There’s no squeezing, no drying time, and less mess. For people with limited hand dexterity, rings can be significantly easier to manage than paste from a tube.
Troubleshooting Leaks With Paste
If you’re using paste and still getting leaks, the issue is usually one of three things. First, too much paste. A thick layer stays soft and lets output seep through rather than creating a firm fill. Scale back to a thinner bead. Second, paste in the wrong spot. Pay attention to where the leak starts. Output typically follows the path of least resistance, so if you always leak at the 6 o’clock position, that’s where a skin crease or contour is channeling it. Focus your paste there instead of spreading it evenly all around.
Third, paste alone may not be enough. If your peristomal skin has significant contour changes from hernias, weight fluctuations, or surgical scarring, paste is a supporting player, not the whole solution. A convex wafer, a barrier ring, or a belt may need to be part of the system. Paste works best as one piece of a well-fitted appliance setup, filling the small gaps that remain after you’ve addressed the larger fit issues.