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How Boston's Longfellow Bridge Was Reborn

The historic restoration of Boston's Longfellow Bridge is now complete! The large-scale granite restoration project included onsite blasting by United Stone, as well as dismantling the bridge’s iconic Rockport granite “salt and pepper” towers piece-by-piece, and then transporting them to nearby workyards in Charlestown via barge for offsite restoration. The now pristine towers were reassembled using a mix of modern and historic construction technology. Skilled masons at United Stone were able to clean ornate granite carvings as well as the large granite blocks using the same equipment and media.

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A Guide to Commercial Marine Repair Near Water

Shipbuilding and marine repair is frequently heavy, hard industrial work. Manufacturing is loud and can get dirty. In a marine environment like a ship yard (which can include one or more dry docks) this process must occur within close proximity to water, posing unique challenges regarding containment and suppression of dust during the building and repair process.

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How to Fit Test a Respirator

Take a deep breath and consider the following: Every worker required to wear a tight-fitting respirator on the job needs a respirator fit test. In the United States and many other countries, respirator fit tests are law. This law even applies to disposable N95 particulate respirator masks. A respirator fit test, typically conducted in a controlled environment, is markedly different than the quick “seal check” performed whenever a worker puts on a respirator.

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Lead Waste: What ‘Cradle to Grave’ Really Means

Those involved in lead paint removal, lead based paint encapsulation, or concerned with lead paint removal costs have likely heard the term “Cradle to Grave,” but not everyone knows what it means in the lead abatement world.

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Ellis Island Gets Facelift with Help from Sponge-Jet

The main entrance, an extended portico, leading into the great hall of Ellis Island National Museum of Immigration (NY, USA) required a face lift. Suffering from exposure to the brackish Hudson River salt-spray, the ±625 micron (±25-mil) old coating system was failing and previewing spot corrosion over much of its steel structure.

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Lead Removal May Reduce Owner’s Cost and Risk

When making decisions regarding lead abatement, facility managers naturally consider a whole host of complex variables. Their recommendations will be used to ultimately decide whether lead-coated surfaces be enclosed and encapsulated, replaced—or removed altogether.

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Sandblasting Equipment for Contractors

Sandblasting (or abrasive blasting as it’s more properly known) was invented in the late 19th century. The simple process of introducing abrasive into a stream of air and propelling it at high velocity onto a surface has grown with the advancement of technology. Equipment can be as basic or as specialized as desired.

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Military Vehicle Maintenance with Sponge-Jet

Sponge Media™ abrasives are currently being used to help the US Military keep their amphibious hovercraft in fighting shape. These vehicles are known for their versatility, facing deployment in different climates all over the world. Naval hovercraft vessels have coatings that must hold up in environments ranging from the arid desert to the freezing arctic. To prevent corrosion from damaging these costly vehicles, surface preparation must be perfect.

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Corrosion, Coating and Surface Preparation Training, Scholarship Opportunity

The Sponge-Jet Global Training and Technology center has published its 2018 Third-Party class schedule which features a broad range of accredited classes from leading industrial trade associations like the National Association of Corrosion Engineers (NACE International), The Society for Protective Coatings (SSPC) and committee meetings which include the American Society for Testing and Materials (ASTM).

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5 Keys To The Best Surface Preparation

Surface Preparation (or Surface Prep for short) is the process of cleaning and readying surfaces for new coatings. Due to varying attributes and performance characteristics of the many coating types, surface preparation requirements can also be unique from project to project. As a result, it’s very important to always read the coating specification and all coating technical data sheets.

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