Provides excellent heat and cold resistance without considerable change of consistency. Karl Hecht™ Assistent™ Silicone Stopcock Grease is a medium viscosity grease.
Vacuum-resistant, silicone-free laboratory grease for sealing and lubricating fixed and rotating ground joints made of glass and for greasing connections made of plastics and metals. glisseal N resists a wide temperature range and does not drip.