Rubber compounds for maritimeResistant to Environmentally Acceptable Lubricants

The shipping industry is on its way to become greener. The US Environmental Protection

Agency (EPA) issued the 2013 Vessel General Permit (VGP) part of which regulates the use

of lubricants on board vessels traveling through US waters.

New rubber compounds resistant to Environmentally Acceptable Lubricants (EAL)

The VGP requirements indicate that all vessels over 79 feet ente-

ring within three miles of the US coast must use an Environmentally

Acceptable Lubricant (EAL) in all oil-to-sea interfaces, unless it is

technically unfeasible. According to the EPA, one liter of mineral

lubricant pollutes 1,000,000 liters of seawater, and with more

than 100,000 vessels in the global fleet; even minimal oil leakages

can lead to critical environmental challenges.

ERIKS is working to meet the requirements of the VGP by conti-

nuously engineering new products and solutions. In collaboration

with the international shipping industry, the company has develo-

ped extraordinary new high-grade rubber compounds.

Alert for EAL in combination with seawater!In combination with high temperatures, these lubricants become

aggressive with a negative influence on

most rubber sealings. This could lead to

unacceptable leakages of lubricants into

the seawater or could cause you applicati-

ons to malfunction.

ERIKS has developed sustainable rubber compounds The combination of EAL with a mixture of water and high tem-

peratures attacks the standard rubber compounds in use, such

as NBR, HNBR, standard-type Viton (FKM) etc. During the first

section of our test project, no differences are seen — but after

a couple of weeks, there is a reaction between the EAL and the

rubber, with a degradation of the structure of the compound and

a loss of mechanical strength.

At its own Elastomer Research Testing Centre in the Netherlands,

ERIKS has therefore deve-

loped several types of new

compounds. Endurance

tests at high temperatures

with and without water

mixture with the most wi-

dely used lubricants on the

market.

Deck cranes

Davids

Hydraulics and deck machinery

Hydraulic power packs and systems

Steering gear

Anchor winches

RudderShaft bearings

Thrusters

Winches

Test results

* Tested using several kind of EALs for more than 1000 hours at high temperatures in both degraded1 and plain oil.1 Oils contaminated with a percentage artificial seawater!

Change in hardness*

Change in volume*EAL 0 °C to 50 °C

Compressionset*Low

temperature

Static use*Standard oilresistance

Dynamic use*

Durable*

Change mechanical properties*

5131 Standard FKM Standard HNBR

Test resultsChange in hardness*

Change in volume*EAL 0 °C to 50 °C

Compressionset*

Low temperature

Static use*Standard oilresistance

Dynamic use*

Durable*

Change mechanical properties*

514621 514170 Standard FKM Standard HNBR

Available products ◾ Oilseals

◾ V-ring

◾ Stern tube seals

◾ O-rings static and dynamic

◾ Hydraulic seals for cylinders

◾ Rubber parts

Maritime applications ◾ Thrusters

◾ Winches

◾ Gearboxes

◾ Hydraulic cylinders

◾ Hydraulic power packs and systems

◾ Rudder

◾ Deck machinery

Compounds for static use Compounds for dynamic use

◾ Compound number 5131

Average use, good for all dynamic

applications.

◾ Compound number 514621

Average use, good for all static

applications.

◾ Compound number 514170

More critical applications, long-life

performers and low temperature.

www.eriks.nl

shop.eriks.nl

ERIKS bv

AlkmaarToermalijnstraat 51812 RL Alkmaar T (072) 514 18 55F (072) 514 56 45E info@eriks.nl

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