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Phenolic Lids are a marvel of modern technology. They have an incredibly high heat tolerance, are chemically inert, and when paired with polycone liners can keep harmful acids, bases, or reactive compounds safe. Phenolic lids are a staple of labs everywhere for their durable, reliable, and safety.


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Phenolic lids

Phenolic is short for Phenol Formaldehyde Resin. Which is what our phenolic caps are made of. Known as PF, phenolic lids were some of the earliest synthetic resins available. Circuit boards, pool balls, and laboratory counter tops are all made from Phenolic resin. There are several reasons for this.

Phenolic resins have no melting point. But at 220 degrees Celsius (428 degrees Fahrenheit) or above, it will start to decompose. Further thier non-chemically reactive nature means that over time, if used with otherwise corrosive or harmful chemicals phenol will not give out the way other polymers might.

There's a lot of other cool things about phenolic lids. Suffice it to say that it's one tough cap. If phenolic lids were a person, it would be Chuck Norris.