What is elastomer compatibility?

What is elastomer compatibility?

Consideration must be given to the basic compatibility between the elastomer seal/gasket and any fluids that it may be in prolonged contact with. If the wrong material is chosen, premature failure and a short service life for the seal can be expected.

Is glycol compatible with stainless steel?

Having said this, 316L stainless steel is considered compatible with propylene glycol under many conditions and is a recommended material of construction for glycol storage.

Is aluminum compatible with methanol?

Care should be taken since methanol can vigorously attack some aluminum alloys. Aluminum alloys offer a favorable strength to weight ratio, but are susceptible to chloride pitting, and crevice corrosion in chloride contaminated methanol service. Copper and its alloys are attacked slowly in methanol service.

Is nitrile compatible with methanol?

HNBR (Hydrogenated Nitrile) HNBR experiences some effects from methanol exposure with some loss of physical properties and some swelling. Performance in methanol exposure is similar to that of NBR.

What is the difference between Viton and EPDM?

Viton® rubber is a fluoro elastomer, whereas epdm rubber is ethylene-propylene-diene-monomer. The primary differences between Viton® and EPDM is in their chemical resistance and temperature ranges. Both have different properties and applications for general industrial use.

Is propylene glycol corrosive to steel?

According to Frank Porters book, Corrosion Resistance of Zinc and Zinc Alloys, propylene glycol will corrode zinc-coated steel less than 0.5 mil per year. Please note that temperature or concentration information are not given for this corrosion rate.

Does Epsom salt react with stainless steel?

A = Excellent. B = Good. Minor Effect, slight corrosion or discoloration….Chemicals M-O.

Is phosphoric acid compatibility with stainless steel?

Phosphoric acid is used as a chemical-cleaning agent for stainless steels. It is used in commercially available stainless steel cleaning preparations and so if used in accordance with the manufacturers / suppliers instructions will not etch or corrode the steel surface.

Does methanol react with stainless steel?

with small diameter openings are extremely susceptible to corrosion from many reversed- phase blends. Both acetonitrile and methanol solutions reacted with 316 stainless steel surfaces, often resulting in component failure within 24 to 48 hr.

Does methanol react with metals?

Copper and Copper Alloys Copper and its alloys are attacked slowly in methanol service. Copper and copper alloy plating and cladding over carbon steel is aggressively attacked and is not recommended for methanol service.

What are incompatible materials?

Incompatible materials means those substances which, if mixed, will create hazards greater than those posed by the individual substances alone, such as fire, explosion, or generation of toxic fumes.

Is Viton resistant to methanol?

Although parts made from Viton™ A have served the chemical processing industry well for many years, improved seal performance may be possible with specialty types of Viton™. For example, Viton™ A is rated D for service in methanol at 23ºC because of volume swell, but Viton™ F, GFLT-S and Extreme™ ETP-S are rated A.

Is silicone compatible with methanol?

Silicone/Fluorosilicone Both silicone and fluorosilicone polymers show very good resistance to methanol exposure. These polymers will give the broadest temperature range, but they are not recommended for some dynamic applications due to poor tear strength and low abrasion resistance.

Which is better VITON or Buna?

Viton is the choice over Buna for high-temperature applications. Viton seals hold indefinitely at temperatures up to 400°F and can last up to 48 hours at temperatures up to 600°F. Buna is effective to 250°F. However, it can effectively seal mechanical objects at low temperatures to –22°F.

Is VITON the same as PTFE?

Viton vs Teflon (PTFE) – Viton offers a greater temperature resistance but falls short of Teflons(PTFE) chemical resistance. Also, Teflon is slightly less thermally resistant but offers much more in the way of non-adhesive properties.