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.
Transmission is also possible, even if no sore is present, through the shedding of the virus particles from the skin. Herpes can also be contagious right before a sore is present, when many individuals with herpes report feeling a burning, tingling, or painful sensation before the sore appears.In terms of relationships, it doesn't mean that you can't kiss anyone.ransmission is also possible, even if no sore is present, through the shedding of the virus particles from the skin. Herpes can also be contagious right before a sore is present, when many individuals with herpes report feeling a burning, tingling, or painful sensation before the sore appears.