Near-white metal blast cleaning. by National Association of Corrosion Engineers.

Cover of: Near-white metal blast cleaning. | National Association of Corrosion Engineers.

Published by NACE in Houston .

Written in English

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Edition Notes

Book details

SeriesJoint Surface Preparation Standard -- 2
ContributionsSteel Structures Painting Council.
ID Numbers
Open LibraryOL21238876M

Download Near-white metal blast cleaning.

Near-white metal blast cleaning is used when the objective is to remove all rust, coating, and mill scale, but when the extra effort required to remove all stains of these materials is determined to be unwarranted. Staining shall be limited to no more than 5 percent of each unit area of Size: KB.

Near-white metal blast cleaning is used when the objective is to remove all rust, coating, and mill scale, but when the extra effort required to remove all stains of these materials is determined to be unwarranted.

Staining shall be limited to no more than 5 percent of each unit area of surface. White metal blast cleaning provides a greater degree of cleaning than near-white metal blast cleaning (NACE No.

2/SSPC-SP 10(1)). The difference between a white metal blast and a near-white metal blast is that a white metal blast removes all of the coating, mill scale, rust, oxides, corrosion products, and other foreign matter from the Size: 68KB.

Near-white blast cleaning allows staining on only 5 percent of each unit area of surface, while commercial blast cleaning allows staining on 33 percent of each unit area of surface.

White metal blast cleaning does not permit any staining to remain on the Size: 43KB. Near white metal blast cleaning is a set standard procedure defined by SSPC – SP 10/NACE No.

2 for cleaning metal surfaces with abrasives to prepare the surface for corrosion proofing by the application of paints and coatings. A near white metal blast cleaning differs from white metal blast cleaning since the surface is not completely cleaned. SSPC-SP 10 near-white metal blast cleaning (NACE No.

2) is a standard used for near-white metal blast cleaning put forth by the Society for Protective Coatings (SSPC) and NACE International Standard. Near-white metal blast cleaning is to be used to clean unpainted or painted steel surfaces prior to applying a new protective coating or lining.

Near-white metal blast cleaning is to be used to clean unpainted or painted steel surfaces prior to applying a new protective coating or lining systems.

SSPC-SP 10/NACE No. 2 removes all dust, coating, and mill scale. The limit of staining permitted for near-white metal blast cleaning is no more than five percent of each unit area of the surface. In Media Blasting & Metal Preparation: A Complete Guide, restoration expert and veteran author Matt Joseph provides all the instruction you need to prepare your car, motorcycle, or anything made of metal for the next stages of restoration.

Covered are basic metal considerations, such as type and size of metal; intended purpose of cleaning the Reviews: Near White Blast Cleaning specifies that shadows, streaks and stains must be limited to 5% of the surface area.

Near White is specified when the added benefit of blasting to White Metal doesn’t justify the added expense. Near-White Metal Wet Abrasive Blast Cleaning: Same level of cleanliness as SSPC-SP 10/NACE No. 2, but achieved by wet abrasive blast cleaning.

Level of flash rust permissible immediately prior to coating application must be specified. SSPC-SP Power Tool Cleaning to Bare Metal. Near White Metal Blast Cleaning: January SSPC-SP 11 Power Tool Cleaning to Bare Metal November SSPC-SP 13/NACE No.

6 Surface Preparation of Concrete: May SSPC-SP 14 Industrial Blast Cleaning January SSPC-SP 15 Commercial Grade Power Tool Cleaning November SSPC-SP Brush-Off Blast Cleaning of Coated and Uncoated. White metal blast cleaning provides a greater degree of cleaning than near-white metal blast cleaning (SSPC-SP 10/NACE No.

The difference between a white metal blast and a nearwhite metal blast is that a white metal blast removes all of the coating, mill scale, rust, oxides, corrosion products, and other foreign matter from the surface.

Near-white metal blast cleaning. book White metal blast cleaning is to be used to clean unpainted or painted steel surfaces prior to applying high-performance protective coating or lining systems. SSPC-SP 5/NACE Near-white metal blast cleaning.

book. 1 removes all visible oil, grease, dust, dirt, mill scale, rust, coating, oxides, corrosion. Requirements for "Near-White Metal" - one of four levels of cleanliness of steel surfaces achieved by blast cleaning with the use of abrasives. (White Metal, Near-White Metal, Commercial, Brush Off) Historical Document Product Number: HD That’s why Blasters Tool and Supply Company offers a variety of training tools to ensure proper blasting practices are followed.

Whether you’re looking for a blasters handbook, a blaster’s calculator, or an explosives training aid, we can help you find it. Blasters Tool and Supply is your source for blasting training books and software.

A near-white metal blast cleaned surface, when viewed without magnification, shall be free of all visible oil, grease, dust, dirt, mill scale, rust, coating, oxides, corrosion products, and other foreign matter, except for staining as noted. ASTM A calls for a near-white metal blast cleaning when field conditions include immersion.

In this case the area damaged and in need of repair by a paint containing zinc dust will receive a blast per SSPC-SP10 before the paint is applied. SSPC. Requirements for "Near-White Metal" - one of five levels of cleanliness of steel surfaces achieved by blast cleaning with the use of abrasives.

(White Metal, Near-White Metal. NEAR-WHITE METAL WHITE METAL BRUSH-OFF COMMERCIAL NEAR-WHITE METAL WHITE METAL BRUSH-OFF COMMERCIAL NEAR-WHITE METAL WHITE METAL Silica Sand* u — High 1 Natural Outdoor blast cleaning Min. Slag u — High 1—2 By-product Outdoor blast cleaning Garnet u Medium 2— Natural Cleaning.

Procedure for Determining Blast Cleaning Air Pressure. Determination of Environmental Factors. Procedure for Detecting Chloride Salts on Prepared or Existing Surfaces. Determining Surface Profile of Blast-Cleaned Steel Using Replica Tape (NACE RP or ASTM DMethod C) N.

Procedure for Measuring Wet Film Thickness (ASTM D. SP 10 Near-White Metal Blast Cleaning SSPC 0 PAINT 40 Zinc-Rich Moisture-Cure Polyurethane Primer, Performance-Based SSPC 0 SP 5 White Metal Blast Cleaning SSPC 0. Coatings. Title: SSPC-Society for protective Coatings. Covers the requirements for near-white metal blast cleaning of uncoated or coated steel surfaces by the use of abrasives.

These requirements include the end condition of the surface and materials and procedures necessary to achieve and verify the end condition. Near-white metal blast cleaning provides a greater degree of cleaning than commercial blast cleaning (SSPC-SP 6/NACE No. 3) but less than white metal blast cleaning (SSPC-SP 5/NACE No.

Near-white metal blast cleaning is used when the objective is to remove all rust, coating, and mill scale, but when the extra effort required to remove all.

Near-White Blast Cleaning X SSPC-SP5/NACE 1 White Metal Blast Cleaning X SSPC-SP12/NACE 5 High- and Ultrahigh-Pressure Water Jetting Prior to Recoating XX XXX SSPC-SP13/NACE 6 Surface Preparation of Concrete X Concrete can also be cleaned and prepared using ASTM D (Acid Etch – Floors), ASTM D (Solvent Cleaning).

Nace No 2 Sspc Sp 10 Near White Metal Blast Cleaning Thank you categorically much for downloading nace no 2 sspc sp 10 near white metal blast likely you have knowledge that, people have see numerous times for their favorite books considering this nace no 2 sspc sp 10 near white metal blast cleaning, but end in the works in harmful.

Blast cleaning is one of the most frequently utilised surface treatment-method in modern industry. Tilghman’s patent on "Improvement in cutting and engraving stone, metal, glass etc." () was the starting point of the utilisation of blast cleaning for industrial processes.

It is more intense than brush-off blast cleaning but not as rigorous as near-white or white metal blast cleaning. No surface contaminants may be visible. In a 9-sq.-in. area, no more than 33% of the area can be stained due to rust.

It is required for most epoxy primers and polyurethane fin- ish coats. White Metal Blast: Removal of all visible rust, mill scale, paint, and foreign matter.

Used for conditions where corrosion resistance is very important and the environment is highly corrosive. Near White Metal Blast: Blast cleaning until at least 95% of all surface area is free of all visible residues.

Blast cleaning is the removal of rust and mill scale by the use of compressed air to project a high velocity stream of abrasive such as aluminium oxide, garnet, grit or steel shot onto the metal surface.

The impact of these high speed particles cuts away the mill scale and rust, leaving a clean. SSPC-SP 10 Near-White Metal Blast Cleaning.

Prior to blast cleaning, visible deposits of oil and/or grease should be removed by power washing or other agreed upon methods. In addition, sharp fins, edges and weld spatter should be removed.

A surface prepared according to SSPC-SP requires that the surface, when viewed without magnification. White metal blast cleaning, near-white metal blast cleaning, commercial blast cleaning, and brush-off blast cleaning are addressed in separate standards.

Industrial blast cleaning provides a greater degree of cleaning than brush-off blast cleaning (NACE No. 4/SSPC-SP 71) but less than commercial blast cleaning (NACE No. 3/SSPC SP). Near-white metal blast cleaning provides a greater degree of cleaning than commercial blast cleaning (NACE No.

3/SSPC-SP 61) but less than white metal blast cleaning (NACE No. 1/SSPC-SP 52). Near-white metal blast cleaning is used when the objective is to remove all rust, coating, and mill. White metal blast cleaning provides a greater degree of cleaning than near-white metal blast cleaning (SSPC-SP 10/NACE No.

21). The difference between a white metal blast and a near-white metal blast is that a white metal blast removes all of the coating, mill scale, rust, oxides, corrosion products, and other foreign matter from the surface. WHAT IS SSPC SP, NEAR WHITE METAL BLAST CLEANING.

Following SSPC-SP1 solvent cleaning, and when abrasive blasting is indicated, SSPC SP, “Near White Metal Blast Cleaning” shall be applied. SSPC-SP10, “Near White Metal Blast Cleaning requires the removal of all mill scale, rust, oxides, and paint to expose the bare metal surface.

Portable blast cleaning machines Hand-operated lli~its in blast cleaning rooms Hand-operated cabinet type blast cleaning machines Automatic blast cleaning machLTles Wei blast cleanL~gmachines 15 J.5 18 20 22 III. POTENTIAL HEALTH ~mSAFETY HAZARDS 25 1. Health Hazards Dust Noise Chemical Safety Hazards 25 25 29 35 35 2.

Joint Surface Preparation Standard Near-White Metal Blast Cleaning A description is not available for this item.

NACE NO. 2 October 1, Joint Surface Preparation Standard Near-White Metal Blast Cleaning This joint standard covers the requirements for nearwhite metal blast cleaning of uncoated or coated steel surfaces by the use of abrasives.

In short, Near-White Metal Blasting provides a higher level of cleaning than Commercial Blasting (SP6), but less than White Metal Blasting (SP5). Like previous surface preparations standards, the resulting media-blasted surface shall be free of all visible oil, grease, dust, dirt, mill scale, rust, coating, oxides, corrosion products, and other.

The metal has a greyish colour. Any traces of contamination shall be visible only as slight stains in the form of spots or stripes.

SA 3 blast cleaning to pure metal: White metal % clean The surface shall be free from visible oil, dirt and grease, from poorly adhering mill scale, rust, paint coatings and foreign matter. Nace 1, SP5, Sa 3 = 0%. Near-white metal blast cleaning provides a greater degree of cleaning than commercial blast cleaning (SSPC-SP 6/NACE No.

31) but less than white metal blast cleaning (SSPC-SP 5/NACE No. 12). Near-white metal blast cleaning is used when the objective is to remove all rust, coating, and mill scale, but when the extra effort required to remove all. mold cleaning blasting technical information.

factors that affect blast finishing are: 1. blast specifications estimated blast cleaning rates no 1 white metal blast sspc-sp5 #7 nozzle no 2 near white blast sspc-sp10 #7 nozzle. Near-White Metal Blast Cleaning.

Reaffirmed in This joint standard practice details the use of blast cleaning abrasives to achieve a defined degree of cleaning of steel surfaces prior to the application of a protective coating or lining system.

The focus of this standard is near-white metal blast cleaning, which removes all rust, coating.Near white metal blast cleaning—Parts should be 95 percent free of all visible residues.

White metal blast cleaning—Parts should be free of all visible rust, mill scale, paint, and foreign matter. The SSPC provides written as well as visual guidelines that show the physical differences among cleaning standards.

You can use these guidelines. Blast cleaning uses a variety of abrasive particles or media to prepare a material's surface. These include sand, glass beads, metal shot and several others.

These particles can be propelled in a dry or wet state. Blast cleaning abrasive particles can sometimes be .

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