White metal blast

Solvent Cleaning Hand Tool Cleaning Power Tool Cleaning Bmsh-Off Blast Commercial Blast Near-White Metal Blast White Metal Blast... 

White metal blast - To sand or shot blast a steel substrate to a SSPC No. 5 finish, as specified by the Steel Structures Painting Council. 

Steel Structure Paint Council white metal blast surface preparation Proposed test method for pinhole detection by high-voltage spark testing by DC... 

Surface preparation depends on coating formulation and intended usage. This could vary on steel substrates from a commercial to a white metal blast. Profile is also essential to obtain ultimate adhesion. The depth of profile required is proportional to the total dry film thickness of the coating system. On concrete surfaces, the general requirement is to remove latents and contaminants and this can be accomplished by chemical preparation, scarifying or abrasive blasting. 

The principle of adhesive bonding is that of wall papering the inside of the vessel with the fluoropoly-mer sheets. The surface is blasted to white metal blast per SSPC SP 5. Depending on the application, either an epoxy adhesive or a contact adhesive based on... 

Surface preparation. White metal blast is essential. Surface profile replicas or a comparator is highly desirable. 

Surface preparation. White metal blast per SSPC SP 5. 

Epoxy mastic/ahphatic urethane over Sp-10 near-white metal blast 10 years... 

Surface preparation SP-10 near-white metal blast 13.45... 

Dry abrasive blast consists of a uniform blasting of the surface with a clean, fine, nonmetaUic grit such as flintstones, silica, silicon carbide, aluminum oxide, or glass beads. The particle size will vary with the surface and the material. The degree of blasting for metal substrates should be a white metal blast —complete removal of... 

Written definitions and visible standards as to the degree of surface abrasion are available. A white metal blast is defined in SSPC-SP5 (Steel Structures Painting Council) or NACE No. 1 (National Association of Corrosion Engineers). 

In order for the lining material to obtain maximum adhesion to the substrate surface, it is essential that the surface be absolutely clean. All steel surfaces to be lined must be abrasive blasted to a white metal in accordance with SSPC Specification SPS-63 or NACE Specification 1. A white metal blast is defined as removing all rust, scales, paints, and so on to a clean white metal that has a uniform gray-white appearance. No streaks or stains of rust or any other contaminants are permitted on the surface. At times a near-white blast cleaned surface equal to SSPC-SPIO may be used. Since this is less expensive, it should be used providing the lining manufacturer permits it. 

NACE1/SSPC 5 White metal blast cleaned—produces a gray-white, uniform, metallic color with no obvious foreign material remaining... 

This standard covers the requirements for near-white metal blast cleaning of steel surfaces by the use of abrasives—removal of nearly all mill scale, rust, rust scale, paint. 

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