Low-priced stock that sells at less than $1.00 per share. Often highly-speculative and volatile, such as start-up mining companies. While, in general, penny stock are considered high-risk securities, some penny stock mature into less-speculative investments. All penny stock are traded over-the-counter.
In its natural form, cork is also a very good fire retardant, although cork dust is actually extremely flammable (because here the cell structure has been broken down). Impermeable: Cork has a magic chemical in its cell membrane that makes it completely impermeable to liquids and gases.
Cork floors can be sealed to protect them from water and other spills and to give it a beautiful sheen. It is easy to clean which is an important factor if your conservatory is likely to be a high traffic area. Cork flooring comes in a variety of natural and man made colours and is environmentally friendly.