What is Chockfast?

Chockfast is an epoxy based, pourable compound that cures at normal temperatures to become an extremely tough and durable solid. Chockfast was specifically developed for chocking marine main propulsion and auxiliary machinery and since its introduction in 1963 has earned the approval of the major classification societies worldwide.

Other shipboard applications include…Sterntube & Strut bearings, Pintle & Rudder Bearings, Pedestal Bearings, Steering Gears, Stern Winches, Engine Room Pumps, Cargo Pumps, Cable Penetrations, Large Ball or Roller Bearings, Bow Thrusters and Anchor Windlasses.

Chockfast is a registered trademark of the epoxy resin made by ITW Philadelphia Resins Corp.

The resin itself can be used in an infinite number of applications but it was developed especially for the chocking of marine diesel engines. Due to the resins physical characteristics the costs gained by the quick, easy and trouble free application have made Chockfast the preferable way to mount diesel engines.

Some of the points raised by the use of Chockfast are:

  • Installation and chocking of the engine is done within several hours instead of days.
  • The hardened chock has perfect fit between engine and foundation and therefore spreads the engine forces evenly over the entire bedplate thus eliminating fretting of the contact surfaces.


In virtually any application...


Chockfast range of products

Chockfast comes in a total of 5 different products distinguishable by their colour. The uses and specification of each are explained in their respective Technical Bulletin.

For the entire list of products see the Technical Bulletin list or the Marine Products list.

Installation step by step instructions now available both in English and Greek language.

Special installation applications and how to handle them

Dos and Donts - How to be more successful

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Updated 01.10.2007