1、5-71SSPC-PS Guide 15.00November 1, 1982Editorial Revisions November 1, 2004SSPC: The Society for Protective CoatingsPAINTING SYSTEM GUIDE NO. 15.00Guide for Selecting Chlorinated Rubber Painting SystemsThis Guide offers to the specifi er a selection of chlorinated rubber painting systems that will p
2、rovide good protection for steel structures exposed in a variety of environments. Select the desired surface preparation, primer, intermediate(s), and topcoat from those listed herein and insert them into the standard SSPC Painting System format. In order to aid in the selection, short comments are
3、given. For additional information consult the “Commentary on Painting Systems” and the referenced standards.1. Scope1.1 These specifi cations cover chlorinated rubber painting systems for blast cleaned or pickled steel. These coatings are not recommended for areas exposed to strong organic sol vents
4、, oxidizing acids, or the areas where the surface tempera ture exceeds 74C (165F). Straight chain unsaturated acids, and fats and oils of animal or vegetable origin will cause softening and swelling of these coatings.1.2 These systems are suitable for use on parts or struc-tures exposed in Environme
5、ntal Zones 1A (interior, normally dry), 1B (exterior, normally dry), 2A (frequently wet by fresh water), 2B (frequently wet by salt water), 2C (fresh water im-mersion), 2D (salt water immersion), 3A (chemical, acid), 3B (chemical, neutral), and 3C (chemical, alkaline).1.3 Chlorinated rubber paints a
6、re single-package systems that dry by solvent evaporation and have low permeability to water vapor and oxygen. After drying, they are nonfl ammable and resistant to mildew growth.1.4 The color of the fi nish must be specifi ed.2. Description2.1 This guide outlines the components of a complete chlori
7、nated rubber painting system. A standard system consists of surface preparation by commercial blast cleaning or pickling, one coat of chlorinated rubber primer, one intermediate coat, and one fi nish coat.3. Referenced Standards3.1 The latest issue, revision, or amendment of the refer-enced standard
8、s in effect on the date of invitation to bid shall govern, unless otherwise specifi ed.3.2 If there is a confl ict between the requirements of any of the cited referenced standards and this specifi cation, the requirements of this specifi cation shall prevail.3.3 SSPC STANDARDS AND JOINT STANDARDS:P
9、A 1 Shop, Field, and Maintenance Painting of SteelPA 2 Measurement of Dry Coating Thickness With Magnetic GagesPA Guide 4 Guide to Maintenance Repaint- ing with Oil Base or Alkyd Paint- ing SystemsPaint 17 Chlorinated Rubber Inhibitive PrimerPaint 18 Chlorinated Rubber Intermediate Coat PaintPaint 1
10、9 Chlorinated Rubber Topcoat PaintSP 2 Hand Tool CleaningSP 3 Power Tool CleaningSP 5/NACE No. 1 White Metal Blast CleaningSP 6/NACE No. 3 Commercial Blast CleaningSP 8 PicklingSP 10/NACE No. 2 Near-White Blast Cleaning3.4 AMERICAN SOCIETY FOR TESTING AND MATERI-ALS (ASTM) STANDARD:D 3925 Standard P
11、ractice for Sampling Liquid Paints and Related Pigmented Coatings3.5 FEDERAL STANDARD:TT-P-1046 Primer Coating: Zinc Dust, Chlorinated Rubber, (for Steel and Galvanized Surfaces) (Canceled; Use TT-P-641)4. Surface Preparation4.1 SSPC-SP 6, “Commercial Blast Cleaning,” or SSPC-SP 8, “Pickling.” If sp
12、ecifi ed in the procurement documents, better degrees of blast cleaning shall be substituted (SSPC-SP 5 or 10).COMMENT: Overall coating system performance is a function of surface preparation. Blast cleaning or pickling of the steel is the minimum recommended surface preparation for new work.5-72SSP
13、C-PS Guide 15.00November 1, 1982Editorial Revisions November 1, 2004For highly corrosive conditions and immersion service, a minimum of SSPC-SP 10, “Near -White Blast Cleaning” or SSPC-SP 8, “Pickling” is recommended. Mill scale is particularly detrimental on immersed or wet steel.For less severe en
14、vironments, SSPC-SP 6, “Commercial Blast Cleaning,” may be used. SSPC SP 2, “Hand Tool Clean-ing,” or SSPC-SP 3, “Power Tool Cleaning,” may be substituted only where blast cleaning is impossible, i.e., area access is limited, or environmental requirements are involved.5. Paints5.1 CHLORINATED RUBBER
15、 PRIMERS: After cleaning, the steel shall be primed with one coat of paint conforming with the following specifi cation.COMMENT: Due to the limited protection afforded by shop primers, prolonged fi eld exposure before fabrication should be avoided. Where prolonged exposure is anticipated, con-sidera
16、tion should be given to two coats, each 38 micrometers (1.5 mils) dry fi lm thickness, of shop primer. One coat may not provide adequate protection for more than 90 days.Whenever chlorinated rubber paint systems are to be used over galvanized steel or nonferrous metals, a wash primer is recommended
17、to insure good adhesion.5.1.1 SSPC-Paint 17, “Chlorinated Rubber Inhibitive Primer”:COMMENT: When this preferred primer is used, excellent total system performance results. The primer affords ease of application, subsequent coat adhesion (whether shop or fi eld applied), fl exibility and durability
18、of the total paint system; it also affords a high degree of impermeability, resistance to abrasion, and protection against corrosive environments.5.1.2 Proprietary Primer:COMMENT: A proprietary primer of proved performance capability may be substituted for the above if desired by the specifi er. Spe
19、cify the manufacturer, trade name, and product number of the desired proprietary paint.Several generic types of proprietary primers may be used. They include modifi ed chlorinated rubber, chemically-cured epoxy, zinc-rich paints, or those coatings specifi cally recom-mended by the manufacturer. Wher
20、e subsequent coats from different manufacturers are involved, compatibility tests must be made.5.2 INTERMEDIATE COAT(S) FOR CHLORINATED RUBBER PAINTING SYSTEMS:5.2.1 SSPC-Paint 18, “Chlorinated Rubber Intermediate Coat Paint”:COMMENT: When this preferred intermediate coat is used, minimum fi lm thic
21、kness coating system requirements are readily obtained.5.3 CHLORINATED RUBBER FINISH COATS:5.3.1 SSPC-Paint 19, “Chlorinated Rubber Topcoat Paint”:COMMENT: When this preferred topcoat is used, maxi-mum resistance is obtained in most chemical and corrosive environments.5.3.2 Proprietary Finish Paint:
22、COMMENT: A proprietary fi nish paint of proved perfor-mance capability may be substituted for any of the above if desired by the specifi er. Specify the manufacturer, trade name, product number, and color of the desired proprietary paint.Several types of proprietary topcoats may be used. They includ
23、e alkyd, acrylic, or hydrocarbon modifi cations to improve gloss and color retention. However, overall chemical corrosion resistance may be impaired.6. Paint Application6.1 PAINT APPLICATION: Follow requirements of SSPC-PA 1, “Shop, Field, and Maintenance Painting of Steel.”COMMENT: Chlorinated rubb
24、er paints can be applied over a surface temperature range of 2 to 49C (35 to 120F), where the surface temperature is at least 3C (5F) above the dew point at the time of application. Under special conditions and when no ice is present on the surface, these coatings can be applied at temperatures as l
25、ow as -15C (5F).Suffi cient time should be allowed for air drying between coats to insure solvent removal. Solvent entrapment can occur with single-coat applications if the dry fi lm thickness is more than 125 micrometers (5 mils).6.2 FIELD TOUCH-UP PAINTING: In accordance with specifi cation SSPC-P
26、A 1, “Shop, Field, and Maintenance Painting of Steel,” and in particular with the section thereof entitled “Field Painting.”6.3 MAINTENANCE PAINTING: For maintenance painting procedures, see SSPC-PA Guide 4, “Guide to Maintenance Repainting with Oil Base or Alkyd Painting Systems.”COMMENT: This guid
27、e covers the steps necessary for repainting previously painted steel surfaces.6.4 NUMBER OF COATS: Two or three.COMMENT: A primer coat followed by both an intermedi-ate coat and a topcoat is ordinarily required. For less severe environments, a primer coat meeting SSPC-Paint 17, “Chlo-rinated Rubber
28、Inhibitive Primer,” followed by a coat meeting SSPC-Paint 18, “Chlorinated Rubber Intermediate Coat Paint,” or SSPC-Paint 19, “Chlorinated Rubber Topcoat Paint,” may be used, provided that the total dry fi lm thickness applied is at least 100 micrometers (4.0 mils).6.5 DRY FILM THICKNESS OF PAINT SY
29、STEM: Not less than the following as measured in accordance with SSPC- PA 2, 5-73SSPC-PS Guide 15.00November 1, 1982Editorial Revisions November 1, 2004“Measurement of Dry Coating Thickness with Magnetic Gages”: primer 38 micrometers (1.5 mils); intermediate, if specifi ed, 75 micrometers (3.0 mils)
30、; topcoat 38 micrometers (1.5 mils); for a three-coat system 150 micrometers (6.0 mils); for a two-coat, if specifi ed, system 100 micrometers (4.0 mils).7. Inspection7.1 All work and materials supplied under this specifi ca-tion is subject to timely inspection by the purchaser or his authorized rep
31、resentative. The contractor shall correct such work or replace such material as is found defective under this specifi cation (See Note 9.1.). In case of dispute, unless otherwise specifi ed, the arbitration or settlement procedure established in the procurement documents shall be followed. If no arb
32、itration or settlement procedure is established, then a procedure mutually agreeable to purchaser, material supplier, and contractor shall be used. 7.2 Samples of paints under this painting system may be requested by the purchaser and shall be supplied upon request along with the manufacturers name
33、and identifi cation for the materials. Samples may be requested at the time the purchase order is placed or may be taken from unopened containers at the job site.7.3 Unless otherwise specifi ed, the sampling shall be in accordance with ASTM D 3925.8. Disclaimer8.1 While every precaution is taken to
34、ensure that all information furnished in SSPC standards and specifi cations is as accurate, complete, and useful as possible, SSPC cannot assume responsibility nor incur any obligation resulting from the use of any materials, coatings, or methods specifi ed herein, or of the specifi cation or standa
35、rd itself.8.2 This specifi cation does not attempt to address problems concerning safety associated with its use. The user of this specifi cation, as well as the user of all products or practices described herein, is responsible for instituting appropriate health and safety practices and for insuring compliance with all governmental regulations.9. NotesNotes are not a requirement of this specifi cation. 9.1 The procurement documents should establish the responsibility for samples, testing, and any required affi davit certifying full compliance with the specifi cation.
