Page 61: of Maritime Reporter Magazine (March 1997)

Cavi-Tech Hydroblasts

U.S. Navy Ship

Based in Atlanta, Ga., hydrob- lasting equipment developer Cavi-

Tech, Inc. is currently working on

USS Belleau Wood in Sasebo,

Japan. According to a Cavi-Tech representative, the company will hydroblast the entire exterior hull from the flight deck down, as well as more than 200,000 sq. ft. of bal- last tanks on the vessel. This is reportedly the largest hydroblast- ing project the U.S. Navy has undertaken.

Of special concern to U.S. Navy port engineers is the use of abra- sive blast because of the expense of protecting the local and shipboard environments from dust, and the fact that the coatings system on the vessel has not broken down enough to warrant total removal.

On the freeboard and catwalk area, Cavi-Tech will remove the sil- icone alkyd top coat layers and the epoxy 150 and 151 layers will be stressed to ensure adhesive and cohesive soundness. Any corroded areas will be blasted down to bare metal. The underwater hull will be subjected to a sweep blast in order to clean the as yet undam- aged anti-fouling coatings. The ballast tanks will undergo a spot blast to bare metal on corroded areas, leaving tight edges, and existing intact coatings will be sweep blasted in preparation for painting. Cavi-Tech is operating 12 x 20,000 psi blast stations in order to complete the scope of this work. Cavi-Tech, Inc. specializes in hydroblasting using 20,000 and 40,000 psi equipment for both marine and industrial markets.

The company offers its own paint crews for turnkey projects.

For more information on Cavi-Tech, Inc.

Circle 46 on Reader Service Card

Valspar's full color range, is compatible with existing solvent-based coatings and is VOC compliant.

Circle 45 on Reader Service Card

Aqua-Dyne, Inc.

Houston-based Aqua-Dyne, Inc. has devel- oped a high pressure water jetting system for cleaning decks, hulls and walls. The Roto-Jet

Blaster uses high pressure water with special- ly-designed rigging and a rotary jet nozzle sys- tem to remove rust and damaged coatings on ships while at sea or in drydock. The Roto-Jet system is a self-powered, high-pressure water jet unit for surface preparation of the hull or deck of a ship. The water jetting system auto- matically cleans loose paint, rust and scales to meet SA 2-3 standards. The cleaning unit is lowered down a ship's hull to the bottom, moved sideways using on-deck rigging and then bought back up to the deck while cleaning a one meter path with each up and down pass.

Circle 49 on Reader Service Card

S.G. Pinney & Assoc., Inc.

S.G. Pinney & Assoc., Inc. specializes in cor- rosion control through the proper use of protec- tive coatings. The company's services include specification preparations and review, failure analysis, project management, inspector train- ing, laboratory testing and analysis, indepen- dent condition surveys and application inspec- tion. S.G. Pinney & Assoc. distributes inspec- tion instruments through more than 75 manu- facturers.

Circle 50 on Reader Service Card

Electromatic Equipment Co.

Check Line 977 series gauges measure the

HYDRAULIC

STEERING

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Circle 211 on Reader Service Card 69

Wagner provides hydraulic steering systems, complete from wheel to rudder. Choose from four systems, their progressive cylinder sizes, components and accessories to suit

Type your vessel. Wagner offers one

N source complete system compatibili- ^, - ty and one supplier responsibility.

Call or fax for literature and your 700 nearest dealer. SERIES