Tealon TF 1580

Tealon TF 1580Restructured PTFE with Barium Sulfate

Description and Applications

Tealon TF 1580 is filled with barium sulfate and is suitable for strong caustic fluids. It meets FDA conformance for service within food and pharmaceutical applications. 1580 can be used in a wide range of applications due to its vast resistance to most chemical products. It is compatible with strong acids along with strong caustics, making it the most diverse material within the Tealon family. With the off-white color of 1580, this material is also suitable for processes where contamination is not tolerated. Tealon 1580 meets and has been approved by BAM for oxygen service.

Approvals: DVGW — TA-Luft — FDA — BAM — Chlorine Institute

Hot Compression Test

This performance test measures the behavior of rPTFE and PTFE gaskets in a real world environment. The chart below shows a comparison between conventionally skived PTFE and Tealon. The gaskets we tested simulated a real world application including thermo-cycling. The skived PTFE gasket showed a very high leak rate, losing 60% of its initial pressure by the end of the test.

The Tealon® gasket lost only 6% of its initial pressure by the end of the test and showed a leak 10 times less than that of the skived PTFE gasket. The pictures below, show the gaskets after the test and exhibit the dimensional stability of Tealon as compared to the noticeable creep of the skived PTFE gasket.
Thermo-Cycling Leak Test

Temperature cycles from 30º C to 200ºC, with seating stress of 5000psi and using a gasket thickness of 1/8″.

Service Limits

Operating Parameters	TF1570	TF1580	TF1590
Temperature	-450 to 500 ºF (-268 to 260 ºC)
Max. Pressure	800 psig (55 bar)	1200 psig (83 bar)	1200 psig (83 bar)
Pressure x Temperature – psig x ºF (bar x ºC)	Thickness 1/16″	350.000 (12.000)
	Thickness 1/8″	250.000 (8.600)
Sheet Size	60″ x 60″*
Availability	1/32″, 1/16″, 3/32″, 1/8″, 1/4″
Composition	PTFE with glass microspheres	PTFE with barium sulfate	PTFE with silica
* 59″x59″ is available upon request.

Physical Property	Type of Test	TF1570	TF1580	TF1590
Color		Blue	Off-White	Fawn
Sealability (ml/h)	ASTM F 37A	0.12	0.04	0.20
Creep Relaxation (%)	ASTM F 38B	40	15	18
Compressibility(%)	ASTM F 36M	25-40	4-10	5-15
Recovery Min. (%)	ASTM F 36M	30	40	40
Tensile Strength (psi)	ASTM F 152	2030	2030	2030