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Your cart is empty.Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of porcelain is heat tested in our factory. Glaze - No softening occurs up to 1000°C, and it is extremely white. Resistance to Chemical Action - Resistance to acids and alkalies is excellent, except for hydrofluoric acid.
Brendan
Reviewed in the United States on July 27, 2019
Filter paper can't form a seal due to being raised by the burrs.
Cole C.
Reviewed in the United States on July 20, 2019
I like that it works as it should, I don't like the craftsmanship and finish work. It was difficult to imagine the size, so here is a photo of the 200ml 70mm diameter Buchner Funnel in my hand. It fit with a number 8 and looks great on a 500ml Vacuum Flask.
Greg Hamm
Reviewed in the United States on July 10, 2016
Works perfectly. Already have used it several times.
Junah Crandall
Reviewed in the United States on October 23, 2016
There are bumps in the porcelain right next to two of the holes (one on the outer ring and the other in one of the inner rings). Thankfully, I can probably plug the hole on the outer rim and simply cut a notch in the filter paper to obtain a decent seal. Shotty craftsmanship nonetheless.
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