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PAT Frits

PAT – PEEK Alloyed with Teflon®
Superior chemical resistance
Excellent mechanical strength

PAT, a porous material for frits and filters in HPLC, stands for PEEK Alloyed with Teflon®. PAT is made by compressing PEEK and Teflon® particles under rigidly controlled conditions to form porous sheets. PAT frits are suitable for use with all HPLC and IC mobile phases, including strong buffers and chloride salts which corrode common stainless steel frits.

PAT frits may be used with any HPLC column or filter, but they are particularly well suited for separations involving proteins, peptides, nucleic acids, or other samples of biological origin. PAT frits are also ideal for IC systems, where metal frits may interact with ionic samples or release transition metals that will deactivate ion exchange columns.

Compared with other porous polymer frits (Polyethylene, Polypropylene, PTFE), PAT frits exhibit superior chemical resistance, and have a superior mechanical strength derived from the thermally-bonded structure of the PEEK - Teflon® alloy. This strength allows very thin PAT frits to be used without support rings, and they can easily be pressed into column ends.

In addition to standard PAT frits, we also supply PEEK-encased PAT frits.

Note
Stated frit porosities are only nominal, and do not reflect the maximum pore size of a frit. Check the frit selection chart for help in choosing the right frit for your application.

Standard PAT Frits

Tolerances: ± 0.05 mm (.002")
Pressure rating: < 350 bar (< 5000 psi)

Porosity	Diameter	Thickness	Volume*	Qty/pkg	Product No.
5 µm	1.59 mm (0.062")	0.78 mm (0.031")	0.54 µl	5	JR-6145-3062-5
	3.17 mm (0.125")	0.78 mm (.031")	2.18 µl	5	JR-6145-3125-5
	4.77 mm (0.188")	1.59 mm (.062")	9.87 µl	5	JR-6145-6188-5
	12.70 mm (0.500")	0.78 mm (.031")	34.91 µl	5	JR-6145-3500-5
10 µm	6.35 mm (0.250")	0.78 mm (0.031")	8.73 µl	5	JR-6146-3250-5
10 µm	12.70 mm (0.500")	0.78 mm (.031")	34.91 µl	5	JR-6145-3500-5

*Frit volumes are theoretical and are calculated by multiplying overall frit volume times the porosity proportion. PAT frits have a porosity proportion of 35%.

PAT Frits - PEEK-Encased

Tolerances: ± 0.05 mm (.002")
Pressure rating: < 350 bar (< 5000 psi)
All sold 5 to a package

Porosity	Ring OD	Frit OD	Thickness	Volume*	Product No.
5 µm	5.08 mm (0.2")	2.59 mm (0.102")	1.59 mm (0.062")	2.91 µl	JR-9000-0477-5
	6.35 mm (0.25")	4.77 mm (0.187")	1.59 mm (0.062")	9.77 µl	JR-68152-5
	9.52 mm (0.375")	7.92 mm (0.312")	1.59 mm (0.062")	27.19 µl	JR-67152-5
10 µm	6.35 mm (0.25")	4.77 mm (0.187")	1.59 mm (0.062")	9.77 µl	JR-9000-0460-5

*Frit volumes are theoretical and are calculated by multiplying overall frit volume times the porosity proportion. PAT frits have a porosity proportion of 35%.

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