The fluorelastomer has the exceptional characteristic of resistance to fuels and chemical agents. It has an optimum resistance to ozone and high temperatures, but unfortunately it has a poor resistance to low temperatures. The different percentages of fluorine in the compound can determine sensible improvements of chemical compatibility.

GENERAL PROPERTIES
Specific weight of the compounds: 1,80 ÷ 2,30
Obtainable hardness Shore A or IRHD: 50÷ 90
Minimum temperature of use: -10°C ÷ -18°C * (-40°C) **
Maximum temperature of use: +200°C ÷ +230°C * (+275°C) **

* depending from the types ** with a specific optimal formulation

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BASIC POLYMER HARDNESS	TECNOGOMMA CODE	UTILIZATION TEMP. (°C)	PARTICULAR CHARACTERISTICS AND APPROVALS
FKM Dupont copolimer 70	VITON ® / 70 (1*) (Black)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance.
FKM Dupont copolimer 75	VITON ® / 75 (1*) (Black)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance.
FKM Dupont copolimer 80	VITON ® / 80 (1*) (Black)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance.
FKM copolimer 70	FKM / 70 (Black,green,brown)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance.
FKM copolimer 75	FKM / 75 (Black,green,brown)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance.
FKM copolimer 80	FKM / 80 (Black,green,brown)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance.
FKM copolimer 70	TCI / 70 (Black)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance. Approvals: DVGW for gas: DIN EN 549 E1(0/+150 °C) H3, N°NG-5112AQ1591; it will expire on 30/09/2015. DVGW VP 406-A 7.
	FKM AL / 70 (Black)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance. In compliance with FDA requisites (177.2600-21) for food; indeterminate expire date.
	FKM AL V. / 70 (Green)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance. In compliance with FDA requisites (177.2600-21) for food; indeterminate expire date.
	TECNI VERDE V2 / 70 (Green)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance. Approvals: DVGW for gas: DIN EN 549 E1(0/+150 °C) H3, N° NG-5112AQ1528; it will expire on 31/07/2015. DVGW VP 406-A 7.
FKM peroxyded copolimer 70	TEC V52 / 70 (Black)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance. In compliance with FDA requisites (177.2600-21) for food; indeterminate expire date.
FKM copolimer 80	FKM AL M. / 80 (Brown)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance; press formability using specific equipments. In compliance with FDA(177.2600-21) requisites for food; indeterminate expire date.
FKM copolimer 60	LAG / 60 (Black)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance. Approvals: DVGW for gas: DIN EN 549 E1 (0 /+150 °C) H2, N° NG-5112AO0667; it will expire on 30/04/2013. DVGW VP 406-A 7.
	TECNOGOMMA V1 / 60 Verde (Green)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance. Approvals: DVGW for gas: DIN EN 549 E1(0/+150 °C) H3, N° NG-5112AR0803; it will expire on 30/11/2011. DVGW VP 406-A 7.
	FKM V1 / 60 Marrone (Brown)	-15 / +250	Hydrocarbons, mineral oils,ozone and concentrated acids resistance. Approvals: DVGW for gas: DIN EN 549 E1(0/+150°C) H2, N° NG-5112BL0067; it will expire on 23/02/2015. DVGW VP 406-A 7.
FKM therpolimer 70	FKM TER / 70 (Black)	-15 / +250	Hydrocarbons (even with methanol), mineral oils,ozone and concentrated acids resistance
FKM peroxyded therpolimer 70	FKM PX / 70 (Black)	-15 / +250	Hydrocarbons, mineral oils (even with additives),ozone and concentrated acids resistance
FKM peroxyded therpolimer 80	TEC V45 / 80 (Black)	-15 / +250	Fluorine-elastomer with high fluorine concentration. Resistant to: hydrocarbons and mineral oils,ozone and concentrated acids, steam. In compliance with FDA requisites (177.2600-21) for food; indeterminate expire date. In compliance with 3-A Sanitary Standard, Number 18-03 Class II.
(1) REGISTERED TRADEMARK VITON* DUPONT (2) REGISTERED TRADEMARK TIMO* TECNOGOMMA INTERNATIONAL SPA

This is a work sheet issued by DVGW in addition to the EN 549 or EN 682 approvals for gas application in Germany market.

The work-sheet is subdivided in two parts:
The first one, which has already been obligatory in addition to EN 549 and EN 682 approvals, requires an identification test of the elastomeric material (through the IR technique).

The second one is still optional by now, and requires the following tests: Ozone resistance, Stress relaxation Tests, Compression set at condition of 3000 h at 70o C, with the surveillance of the compression set each 1000 h.

This test has the clearly intention to value the material behaviour in a quite significant time set. The maximum admitted compression set value has not been fixed.

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