S stands for Silicone based and this means that it is OK to use on all Hallberg-Rassy boats.
Shelf life is 6 months from date of the tube.
Please note : We currently have a limited stock of this product and can therefore offer maximum two tubes per order.
When you are re-caulking an entire deck, we recommend you to use a traditional non-silicone product, which is available from several well known producers.