Strange question but cant seem to find a clear / white silicone, type you use for water proofing edges, bathrooms, wet areas etc. Bog standard silicone sealer in a tube or cartridge that actually goes off and firm. Back home silicone gets a skin on it in 10 minutes and sets firm maybe 6-8 hours. Here it seems to be still tacky and sticky days after, tried quite a few different types too. Only use it once in a while so tend to just get a small tube from hardware, but tried a few gun cartridges too. Funnily enough always seems to have gone off in the tube even well sealed should I go to reuse the open tube or cartridge a few months later