China Factory Price OEM Coating Seal Ring

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China Factory price OEM Coating Seal Ring

Table of O Ring/X Ring Material and Chemical Compatibility

Material requirements 物性要求	Material grade 物性等级	Material name 材料名称	NBR(N)	HNBR(H)	EPDM(E)	VMQ(S)	FKM(V)	FFKM(K)	PTFE(F)	PU(U)	NR(R)
Resistance to ozone			△	◎	◎	◎	◎	◎	◎	◎	×
Resistance to outdoor			○	◎	◎	◎	◎	◎	◎	○	×
Heat resistance			120℃	150℃	150℃	220℃	200℃	320℃	280℃	90℃	90℃
Resistance to chemicals			○△	○	◎	◎○	◎	◎	◎	◎	×
Anti-oil			◎	◎	×	○△	◎	◎	◎	◎	×
Sealing water			○	○	◎	○	○	◎	◎	◎	◎
Cold-resistant			-40℃	-40℃	-50℃	-70℃	-20℃	-20℃	-100℃	-40℃	-60℃
Wear resistance			○	◎○	○	×	◎○	◎	◎	◎	◎○
Resistance to deformation			◎○	○	◎○	◎	○	◎	×	×	◎○
Acid-proof			△	○	◎○	△	◎	◎	◎	×	○△
Alkali-proof			○	◎	◎	△	◎○	◎	◎	×	△
Tensile strength			◎○	◎	◎○	×	◎○	◎○	△×	◎	◎
Resistance to water vapor			×	○△	◎○	○△	○△	◎	○	×	△
Fire-Resistant			×	×	×	△×	◎	◎	◎	△	×
Storage and stability			5-10Y	5-10Y	5-10Y	ABT20Y	ABT20Y	ABT20Y	ABT20Y	ABT20Y	3-5Y

◎excellent ○good △common ×poor

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