Description

General Purpose Fluorosilicone Rubber Compound Topda FS-R8200 is light yellow translucent uncatalyzed fluorosilicone rubber base mixed evenly with some kinds of fillers and additives. It can be used as seal material in special condition with requirements of resistance to high and low temperature, oil and some other chemical mediums. 

Features

• Integrated advantages of both silicone rubber and fluororubber
• Wide working temperature range(-60°C-200°C)
• Good resistance to solvent & fuel oil 
• Easily pigmented 
• High tensile force retention at high temperature which is like silicone rubber
• High insulation
• High selective permeability

Technical Index 

Items	Testing Method	R8230	R8240	R8250	R8260	R8270	R8280
Appearance	Visual Inspection	Translucent, smooth surface, no visible impurities
Specific Gravity(g/cm3, 25℃)	ASTM D792	1.42	1.43	1.46	1.48	1.49	1.50
Hardness(Shore A)	ASTM D2240	30	40	50	60	70	80
Tensile Strength(MPa) Die C	ASTM D412	8.5	10.0	10.5	9.5	9.0	8.0
Elongation at Break(%) Die C	ASTM D412	350	375	350	300	250	165
Tear Strength(KN/m) Die B	ASTM D624	21	25	25	22	20	18
Compression Set (177℃X22hr) (25%) B type	ASTM D395	15	12	13	14	15	16
Volume Change(reference fuel B)(%)(23℃x70hr)	ASTM D471	22	20	19	18	18	18

* Properties obtained using 0.55 phr 2,5-bis (tert-butylperoxy)-2,5-dimethylhexane (DHBP). Molded 15min at 170℃, post-cured 4hr at 200℃. If other cure temperature needed, vulcanization system shall be changed.  

Application

Used as sealing materials to resist petroleum oil, lubricant oil, hydraulic oil, transformer oil, and non-polar chemical reagents in low temperature and/or high temperature environments

Used to produce molded, extruded, and calendered fluorosilicone parts, such as O-rings, gaskets, sealing rings, oil seals, sealing strips, sensor materials, diaphragms, membranes, and clips for fluorosilicone gaskets and pipes.

Packing

It is available in 12.5 Kg per plastic bag and 2 bags in 1 carton.

Transportation & Storage

Transported as non-dangerous substance.  

Keep it in good condition of packing during transportation.

the product should be stored in a dry and ventilate place at room temperature. 

Avoid from acid, alkali chemical materials and other impurities.

Shelf life

Shelf life: 1 year.