Last fall I pulled my kid’s inflatable pool float out of the storage shed and it was glued to itself. The plastic had degraded into this sticky, peeling mess. I had to throw away a forty-dollar float that got used maybe six times.

The problem was moisture. I had deflated it and shoved it in a bin while it was still damp. The water trapped between the folds broke down the plasticizers in the vinyl, turning it into goo. Here is how to store them right.

Dry Completely Before Storing

This is the rule everything else depends on. Deflate the toy fully — use the pump on reverse to suck out every bit of air. Then wipe every surface with a dry microfiber cloth. Inside the folds, the seams, the handles, the cup holders. No shortcuts. If you can feel moisture anywhere, it is not ready to pack.

Leave them spread out in a dry room for 24 hours before packing. A fan helps. Direct sunlight does not — UV breaks down vinyl faster.

The Cornstarch Trick

Before folding, dust the entire surface lightly with cornstarch or baby powder. This absorbs any residual moisture and prevents the vinyl from sticking to itself. You do not need much — a thin dusting is enough. Rub it in with your hands and shake off the excess.

Do Not Fold; Roll Instead

Sharp creases weaken vinyl over time. Roll the toy loosely like a sleeping bag, with a layer of paper or cloth between the folds. Store in a breathable container — a pillowcase or a mesh laundry bag — not a sealed plastic bin. Vinyl needs airflow.

Where to Store

A cool, dry closet inside the house is ideal. Attics get too hot (vinyl warps) and garages get too cold (vinyl cracks). If you have to store in the garage, put them in the most temperature-stable corner, off the concrete floor.