Spiral Wound gaskets can be fabricated of any metal which is available in thin strip and which can be welded; therefore they can be used against virtually any corrosive medium dependent upon the choice of the metal and filler.
Theoretically, it is no longer contagious when there is no more fluid leaking from the sore, and no new blisters are forming. However, I always assume that a cold sore is contagious until it is completely healed, and to the best of my knowledge I've never transmitted the virus to anyone else. Abreva is a very good remedy. If applied when you first feel the tingle you can actually prevent the cold sore from erupting into blisters.
Follow Following Unfollow Pending Disabled. A Honor Society of Nursing (STTI) answered. As long as you have a cold sore, the virus is still contagious. An outbreak of oral herpes should go away in about one or two weeks. During this time, do not kiss or share personal items with anyone to prevent spreading the virus.