Philadelphia Resins CHOCKFAST ORANGE 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.

The widely acknowledged superiority of CHOCKFAST chocks over those of steel or cast iron has led to their adoption throughout the world by ship owners and shipbuilders. Many thousands of ships with engines up to 70,320hp have logged millions of hours at sea with CHOCKFAST chocks.

Since the machining of foundations is not required and all machining and hand fitting of chocks is eliminated, the cost and time required for machinery installation are dramatically reduced.
Because of the full contact intimate fit of CHOCKFAST chocks to the mounting surfaces, fretting of the chocks and loosening of hold-down bolts are eliminated. Thus the original alignment may be retained indefinitely.
While the physical properties of CHOCKFAST ensure alignment, the compressive modulus is substantially less than that of steel, providing a mounting with decided advantages under shock loading and often much smoother and quieter operation.

* Approved by Classification Societies worldwide.

* Greatly reduced time and cost of machinery chocking.

* Eliminates machining and hand fitting of metal chocks.

* Proven superior to fitted steel chocks and alignment retention.

* Eliminates loosening of holding down bolts.

Guideline for Marine Designers
Technical Bulletin 692

Chockfast Orange
Industrial Bulletin 1032

Chockfast materials and techniques have been developed to permit precision chocking work on site with minimal time required. Directed by an approved Applicator Engineer, the work can be undertaken by whatever work force is available.

As approved applicators C.E.& A Co. offer design checking, load calculation, pouring and pouring supervision services within Australia.

Installing a vessel's sterntube bearing or 'A' bracket (Skeg) bearing by using the Chockfast Orange method eliminates the costly need to 'line-bore' for final bearing alignment and simplifies what can be a lengthy procedure. The bearing sleeves or complete inner sterntube can be checked for alignment before final chocking or, if required, the propeller shaft can be installed to guarantee fit prior to chocking.

2 Sterntubes ready for installation,
On the right is the S/Steel inner tube with bearing.
Centre is the Aluminium constructional tube.
Left - an assembly together showing the jacking bolts and fairing cone.

Ph: 08 8240 0777