Latex tube, rubber tube, silicone tube, which three of the best tightness?
Ding Ji rubber: usually used as a silicone hose material used, in general, the sealing ability of silicone hose is better than the rubber hose. So, in life or in the industry need to seal the tube will take into account the silicone hose.
Rubber tightest is butyl rubber, rubber pipe products in general, with no fiber layer, expanding 300-500% is no problem, you can put it into the glass tube, depends on the strength of the glass tube and technique.
