Putty can be painted and is best used for gaps between wood and walls, while silicone is more flexible and waterproof and is better used in bathrooms and. Silicone and putty are commonly used as sealants, but they are not the same thing. The putty is composed of silicone components, but the difference lies in the elasticity. The use of silicone as a sealant will provide objects with more flexibility; the ability to expand and contract freely.
When putty dries, it becomes stiffer, making it ideal for projects that require as little expansion and contraction as possible.
