The applicable temperature ranges vary for different types of sealants. Here are the temperature ranges for some common sealants:
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Silicone Sealants
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Generally, they can be used in a wide temperature range from - 60°C to 280°C. Some high - performance products can reach 315°C or even higher.
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Epoxy Resin Sealants
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The temperature resistance range of ordinary epoxy resin sealants is generally between - 60°C and 120°C. Some products with special formulations can withstand higher temperatures.
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Polyurethane Sealants
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Usually, the operating temperature range is around - 40°C to 90°C. Under some specific formulations, the lower temperature limit can be even lower, and the upper temperature limit is generally slightly lower than that of silicone and special - formulated epoxy resins.
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Polysulfide Sealants
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The temperature range for use is from - 40°C to 90°C.
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Acrylate Sealants
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Generally, they can maintain good performance in the temperature range of - 20°C to 80°C. After some special modifications, their temperature resistance range may be expanded, but usually it will not exceed the range of - 40°C to 100°C.
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Hot - melt Sealants
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The working temperature is usually around 150°C to 200°C. When heated to this temperature range for extrusion into joints and then cooled and formed, they can generally be used in an environment of - 20°C to 100°C.
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Phenolic Resin Sealants
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They can be used in the temperature range of - 60°C to 150°C. They have good high - temperature resistance and bonding strength, and some special products can be used at higher temperatures for a short time.
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Neoprene Sealants
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The applicable temperature is generally from - 30°C to 80°C. They have good weather resistance and water resistance, but their stability at high temperatures is relatively poor.
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Fluororubber Sealants
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They can be used in the temperature range of - 20°C to 200°C and have excellent high - temperature resistance and chemical corrosion resistance.
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Butyl Rubber Sealants
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The applicable temperature range is approximately from - 40°C to 120°C. They have good water resistance and air permeability.
