1. Sealings used in Marolex sprayers

NITRILE NBR RUBBER

Used in the following sprayers:
- Profession,
- Profession PLUS,
- Hobby,
- Titan,
- Master,
- Mini,
- Auto.Washer,
- Vacuum Pump

Major advantages:
In addition to its resistance to petroleum oils and aromatic hydrocarbons, NBR is highly resistant to mineral oils, vegetable oils, and many acids. It also has good elongation properties as well as adequate resilience, tensile and compression set

Limitations:
NITRILE RUBBER is generally attacked by ozone, ketones, esters, aldehydes, chlorinated and nitro hydrocarbons

FPM Fluorine Rubber (Viton)

Used in the following sprayers:

- Industry,
- Master Viton,
- Titan Viton.

Major advantages:
It is resistant to a wide variety of aggressive fuels and chemicals at elevated temperatures while retaining their mechanical properties. Other important features of VITON include resistance to weathering, ozone, oxygen and flame... good tensile strength, resilience, low compression set.

Limitations:
Its high price and limited hardness as well as low resistance to strong acids, ketones, esters

2. A full list of chemicals and elastomers’ resistance agains them: Table: 
Symbols in the table:
"+" resistant
"-" not resistant
"o" not tested