Will fiberglass stick to PVC of a inflatable boat could a person make a rigid hull by layering fiberglass to the bottom of a inflatable boat?

Fiberglass does not adhere well to PVC, which is commonly used in inflatable boats, as the two materials have different properties and chemical compositions. While you could technically layer fiberglass onto the bottom of an inflatable boat, the bond may not be strong enough to create a rigid hull, and it could lead to delamination or separation over time. Additionally, the added weight may affect the boat's performance and buoyancy. It's generally not recommended to modify inflatable boats in this way.