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.
While being treated, ringworm is contagious only up to 48 hours and stops being contagious after that. If you are wrestling, then it is advised to stop it till the infection completely cured. You neednât worry about ringworm being contagious during treatment. It takes about 3 â 4 weeks for the infection to clear up.