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1.
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SCOPE
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1.1
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This specification covers Termarust TR2200LV High Ratio Co-Polymerized Calcium Sulfonate Penetrant/Sealer is a proprietary High Ratio Co-Polymerized Calcium Sulfonate based rust penetrating sealer. It inhibits corrosion in areas were traditional coatings are ineffective. This penetrant sealer contains no lead or chromate pigments. It derives its corrosion resistance from the proprietary High Ratio Co-Polymerized Calcium Sulfonate compound’s strong affinity for steel and its ability to neutralize corrosion causing acidity, displace moisture and scavenge oxygen on metal surface. The Termarust TR2200LV High Ratio Co-Polymerized Calcium Sulfonate Penetrant/Sealer has excellent wetting properties and is designed to creep into seams, joints and other inaccessible areas.
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1.2
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Termarust TR2200LV High Ratio Co-Polymerized Calcium Sulfonate Penetrant/Sealer can be used as a stand-alone treatment, or wet on wet with our Termarust TR2100 High Ratio Co-Polymerized Calcium Sulfonate Primer/Topcoats as a treatment for crevice corroded and pack rusted joints and connections. It is suitable for overlapping steel plates, joints, interiors or steel tubing or bolted areas. It is intended for brush, aerosol, hand pump spray, as well as conventional or airless spray. This coating is to be used on fixed structures as part of a long-term maintenance program, and as such should be applied in accordance with SSPC-PA1 “Shop, Field and Maintenance Painting”.
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2.
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DESCRIPTION
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2.1
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Termarust TR2200LV High Ratio Co-Polymerized Calcium Sulfonate Penetrant/Sealer proprietary formulation contains approximately 58.4% by volume of non-volatile film-forming solids (additives and binders). The theoretical spreading rate of non-porous surfaces for a 1 mil dry film thickness is 937 sq. ft./U.S. Gallon at 100% transfer efficiency. Actual spreading rates will be lower due to the porous nature of the rusted substrate. The sealer shall be applied liberally, to thoroughly wet the rusted areas inside or around the joint seams.
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3.
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REFERENCE STANDARDS
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3.1
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The standards referenced in this specification are from the American Society for Testing and Materials (ASTM).
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3.1.1
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Specification for ingredients:
D1296 Odor of Volatile Solvents and Diluents
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3.1.2
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Test Methods for Properties:
B117 Salt Spray (Fog) Testing
D1200 Viscosity of paints, varnishes and lacquers by Brookfield RVT#2 at 10 RPM
D1475 Density of paint, varnish, lacquer and related products
D3278 Flash Point of Liquids by Seta Flash Closed Tester
D3960 Volatile Organic Compound (VOC) of Paints
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3.2
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Federal Standards
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3.2.1
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Standard Specification for ingredients:
TT-T-291 Thinner Paint, Mineral Spirits, Regular and Odorless
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3.2.2
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Federal Test Method Standard No. 141:
Method 4021 Pigment Content (centrifuge)
Method 4041 Volatile and Non-Volatile Content
Method 4053 Non-Volatile Vehicle Content
Method 4061 Drying Time
Method 4494 Sag Test 9 (multi-notch blade)
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3.3
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The latest issue, revision or amendment of the referenced standards in effect on the date of invitation to shall govern unless otherwise specified.
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3.4
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If there is a conflict between the requirements of the cited reference standards and this specification, the requirements of this specification shall prevail.
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3.5
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Steel Structures Painting Council Specifications:
SSPC-PA Guide 3 A Guide to Safety in Paint Application
SSPC-SP7 Brush Off Blast Cleaning
SSPC-SP6 Commercial Blasting
SSPC-SP3 Power Tool Cleaning
SSPC-SP2 Hand Tool Cleaning
SSPC-SP1 Solvent Cleaning
SSPC-SP12 Surface Preparation of Steel and Other Hard Materials by High and Ultrahigh-Pressure Water Jetting Prior to Recoating
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4.
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PROPERTIES – Termarust TR2200LV High Ratio Co-Polymerized Calcium Sulfonate Penetrant/Sealer
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4.1
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Mixed Penetrant Sealer:
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% Total Solids, min.: 58.4%±2%
Brookfield RVT #2 at 10 RPM: 200-300 CPS
Weight per U.S. Gallon, Pounds: 9.24 lbs ± .25
Volatile Organic Content, grams per litre.: 325-334
Drying time (stand alone no topcoat) Hrs.: 12
Flash Point, degrees F: 105
Salt Fog Performance: 500 hours
(Coating applied at 1-2 mils dry film over SSPC-SP5 cold rolled steel panels). Must pass with no rust or creepage at the scribe.
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4.2
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ODOR: Shall be normal for the materials permitted (ASTM D1296). The TR2200 High Ratio Co-Polymerized Calcium Sulfonate complex has little or no odor.
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4.3
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COLOR: The color shall be that of a tan, milky fluid.
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4.4
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COMPATIBILITY: This coating has infinite compatibility with mineral spirits, however no solvent reduction of this material is permitted.
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4.5
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PIGMENT SETTLEMENT: The paint shall show perfect suspension when tested as specified in ASTM D869, when stored for six (6) months.
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4.6
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CONDITION IN CONTAINER: The paint shall show no thickening, curdling, gelling or hard caking when tested as specified in Federal Standard No. 141, Method 3011 after storage for six (6) months from date of delivery in tightly covered containers at a temperature of 40-110°F. The coating shall be filtered before application.
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5.
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LABELING
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5.1
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MARKING OF CONTAINER: Each container shall be marked with the following information:
- Name:
- Color:
- Lot Number:
- Date of Manufacture:
- Quantity of Paint in Container:
- Manufacture’s Name and Address:
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5.
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SURFACE PREPARATION
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6.A
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SURFACE PREPARATION (“recoat” – total removal of existing coating system)
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6.1
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PRE-SURFACE PREPARATION – Before the actual removal of old paint and/or rust commences, all organic material such as bird nests, bird droppings, insect nests and all other non-metallic obstructions or pollutants attached to the steel structures are to be removed.
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6.2
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SSPC-SP1 SOLVENT CLEANING – The entire steel structure to be painted shall be inspected to determine the degree of chemical contamination. All oil and grease shall be manually removed from the steel with proper solvent cleaning as per SSPC-SP1.
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6.3
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BEFORE APPLICATION TO CREVICE CORRODED AND PACK RUSTED JOINTS AND CONNECTIONS– The loose thick, porous and highly salt contaminated rust scale must be removed by sandblasting, water jetting, high pressure water cleaning or to SSPC-SP2 or 3 standard. No loose rust scale shall be allowed to remain at the joint surface. This loose rust scale is highly contaminated with chloride and iron salts, and if allowed to remain, will result in accelerated, catastrophic coating failure. All joints and connections are contaminated with road salts and must be cleaned with 5,000 psi HP WC (high-pressure water cleaning) with a zero degree rotating tip (at a maximum of a 4” standoff distance) with a 100 to 1 solution of soluble salt remover like Termaclean TC7101 or Chlor-Rid. then blown out with clean dry high-pressure air (100 PSI) to insure water has been removed. The cleaning shall be performed in such a manner as to not contaminate freshly painted sections. Freshly prepared joints and connections shall be treated as quickly as practical. In cases where exposed, freshly prepared joints and connections may be exposed to direct contact with aqueous solutions of highway salts, the joints and connections must be treated immediately after cleaning, and must be protected from highway runoff for at least 24 hours.
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7.
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TR2200LV HIGH RATIO CO-POLYMERIZED CALCIUM SULFONATE PENETRANT/SEALER APPLICATION
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7.1
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THINNING: The coating may NOT be thinned.
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7.2
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SPRAY EQUIPMENT: The penetrant sealer may be applied by brush, aerosol, hand pump, airless, air assisted airless, HVLP, LVLP or conventional air atomize spray equipment.
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7.3
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FILM THICKNESS: As this low viscosity penetrating/sealer is intended for use as a treatment for jointed or bolted areas of steel structures which suffer from crevice corrosion and pack rusting or as an anti-corrosive treatment for interiors of steel tubing. Deposit enough coating to thoroughly wet crevices, joints, seams and the interior of the tubing. Coat the upper edge of all seams first, working down the sides of the joint from top to bottom thoroughly wetting the connection with coating in a manner as to propel the material into the joint. Moisture will be displaced from the joint and should be allowed to exit freely from the bottom of the jointed area. (Note: joint geometries vary widely. It is not the intent of this specification to address application to each joint type. The applicator must evaluate individual joint geometries to determine the application method, which will result in optimal joint penetration and coverage). Because of the porous nature of the rust layer and the inaccessibility of the area inside the joint, wet film thickness measurements will not be taken.
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7.4
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APPLICATION TEMPERATURE: The coating should not be applied at temperatures below 2°C with a steel temperature not less then 2°C. There must be a 2 degree C spread between temperature and dew point. (Note: Termarust TR2200LV High Ratio Co-Polymerized Calcium Sulfonate Penetrant/Sealer may be applied below freezing (-18°C). This is not recommended unless steps are taken to control ice crystals before application ie. Spot heating and should only be used for touch up repairs on small areas. The cold temperatures will also slow the coating’s cure.)
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7.5
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APPLICATION INSTRUCTIONS: If required mix the coating thoroughly by hand to insure homogeneity. Screen penetrant before applying, if solid particulates are present as they will inhibit the penetrating effects on the coating. Brush out excess on flat surfaces. Excess coating and moisture will usually exit from the lower edge of the joint.
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7.6
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RECOAT TIME: When used alone optimum penetration takes 12 hours. The penetrant may be recoated wet on wet with Termarust TR2100 High Ratio Co-Polymerized Calcium Sulfonate Primer/Topcoat. Care should be taken to insure intercoat adhesion and that enough Termarust TR2100 High Ratio Co-Polymerized Calcium Sulfonate Self Priming Topcoat is put on the joint area, as wet penetrant will have a tendency to thin the topcoat. Apply enough Termarust TR2100 Primer Topcoat to the joints to insure a paint tight seal.
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7.7
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INSPECTION: The inspector should insure that all joints are treated and any excess coating has been brushed out.
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Note:
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Preparing the substrate to a SSPC-SP6 or SSPC-SP12-WJ3L Surface Preparation, will optimize the surface cosmetically and may slightly improve the Termarust TR2100 High Ratio Co-Polymerized Calcium Sulfonate Self Priming Topcoat’s corrosion resistance. Testing indicates 50+ years service life. Tremendous cost savings and excellent results have been achieved on corroded surfaces prepared to SSPC-SP2, SSPC-SP3 or SSPC-SP12-WJ4 Surface Preparation (25+ years service life). Tremendous cost saving (50% to 75%) on lead abatement projects have been obtained on corroded steel and remaining tightly adhering paint systems, by cleaning the surface to a SSPC-SP12-WJ4 then overcoating the entire structure with Termarust TR2100 High Ratio Co-Polymerized Calcium Sulfonate Self Priming Topcoat as opposed to complete removal of the existing coating system. (See section 7.3 for application instructions) .
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