Molecular-Tech Coatings Inc. - Weldable Shop Primer Datasheet

360- 008/009 Weldable Shop Primer - Datasheet

1. Code Product
360-Series

2. Product Name
360-008 (Grey) or 360-009 (Red) Weldable Shop Primer

3. Product Description
A fast drying, rust-inhibitive, interior-exterior alkyd primer for ferrous metal and aluminium. Listed by the Master Painters Institute (MPI) under there approved products list #95. May be top coated with epoxy, vinyl, urethane and chlorinated rubber coatings as well as conventional oil, alkyd and latex products. Excellent for use as a barrier coat when applied over sound old oil or alkyd finishes which are to be top coated with heavy-duty coatings. This product has exceptional resistance to exterior weathering, making it especially suitable for use as a shop primer. Typical uses include structural steel, tank exteriors, piping, machinery and fences.

4. Product Features
» May be used on ferrous metal and aluminium.
» Rust-inhibitive - excellent corrosion resistance.
» Fast dry
» May be top coated with heavy-duty coatings an excellent tie coat.
» Chromate and lead free.
» Weldable shop primer.

5. Product Limitations
Do not use for immersion or direct food contact service. Do not use in Type A - Aggressively Corrosive environments. May be used in a Type C-Corrosive environments only if top coated with a product suitable for the environment (such as epoxy, vinyl, etc.). Will withstand 93° C (200° F), continuous dry heat. The color may change as this limit is approached, but the film will remain intact.

6. Technical Data

Product Number	360-008 (Grey) 360-009 (Red)
Generic Type	Alkyd
Color	Grey or Red
Gloss	3-15
Density	1.356 kg/lt.
Sag	5-6
Type Of Cure	Oxidization
Viscosity	61-65ku @25°C
Tack Free	30'max.2h.@4mil wet
Solids By Volume	58%
Application Temperature	Room Temperature
Dry Hard	6 hours @ 4 mil wet
Corrosion Resistance	120h. @ 2mil. dry ASTM B-117
Theoretical Coverage per 1.0 dry mil (2.0mils wet)	928sq. ft./gallon
Recommended Film Thickness & Coverage	1.25 - 1.5 mils dry (2.2-3.0mils wet) - 742.4sq ft./gallon. When computing working coverage, allow for application losses, surface irregularities, any solvent addition, etc.
Percent Solids By Weight	64
Percent Solvent By Weight	36
Flash Point (Closed Cup)	4° C
Drying Time	(20°C, 50% R.H) - Touch 10 minutes; Handles: 30 minutes; Re-coat: 1 hour; Full Cure: 8 hours. NOTE: This primer should be top-coated within 5 days or the adhesion will suffer. For longer re-coat time, scuff sand or repaint.
Reduction Solvent	Xylene (spray) or mineral spirits (brush/roll)
Clean-up Solvent	Xylene or Methyl Ethyl Ketone

7. Surface Preparation
All surfaces must be clean, dry and free of all contaminants.

Ferrous Metal
Remove dirt and dust. Remove oil and grease with solvents such as mineral spirits or xylene in compliance with SSPC-SP1-82 Solvent Cleaning. Further clean the surface by one of the following methods depending upon the service environment. See ASTM D2200.

Type C-Corrosive
This exposure is characterized by moderately aggressive chemical fumes, mists or dusts that combine with moisture and high humidity to corrode zinc at rates less than one mil per year. Type A-Aggressively Corrosive exposures may in some instances, become Type C exposures outside a radius of about 50 yards from the sources of contamination for a limited further distance. For Type C-Corrosive environments. Near-White Sandblasting SSPC-SP10 is recommended.

Type M-Moderate
This exposure is generally outdoors and is characterized by normal weathering and/or moderate concentrations of chemical fumes that combines with humidity and condensed moisture to corrode steel at rates less than three miles per year. Zinc in this exposures is virtually free of corrosion. Light to moderate chemical fume concentrations in indoorareas without excessive humidity may produced similar conditions. For Type M-Moderate environments, Commercial Blast Cleaning SSPC-SP6 is recommended. Where exposure is normal weathering only, Brush-Off Blast Cleaning SSPC-SP7 or power Tool Cleaning SSPC-SPC will excellent service.

Type P-Protected (Architectural)
Surface are generally indoors in the normal humidity range and are not subjected to chemical contaminants which will attack paint or steel. For Type P-Protected environments, Brush-Off Blast Cleaning SSPC-SP7, Power Tool Cleaning SSPC-SP3, or Hand Tool Cleaning SSPC-SP2 will provide the sound substrate needed for primer adhesion.

Aluminum Surface
Remove oil, grease, dirt, dust and chemical contaminants using the prescribed cleaning methods. To obtain proper adhesion use No. 27301 Vinyl Wash Primer or alternatively scuff and solvent wash. See ASTM D2200 "Aluminium" for more information.

Previously Painted Surface
Hard or glossy finished should be dulled by sanding, sandblasting or other abrasive method to ensure adhesion. Clean thoroughly. Remove any loose old coating. Spot prime any exposed non-metal substrate with a primer recommended for the substrate. If more than 25% of the previous coating has failed, if the previous coating can be easily scraped off the surface, or if a test application of the product lifts or wrinkles the previous coatings, it should be completely removed.

8. Application
Apply by spray (airless or conventional) or brush or roller. DO NOT apply if surface temperature is below 10° C (50° F).

9. Spray Application
Airless Spray
Fluid tip: 617
Pressure 1900-2100 psi

10. Drying
Dries to touch in 10 minutes, to handle in 30 minutes, to re-coat in 1 hour, to full cure in 8 hours at 20°C (70°F) 50% R.H. Allow longer drying times under cooler or more humid conditions.

11. Clean-up
Clean all equipment immediately after use with xylene or methyl ethyl ketone.

12. Top Coats
May be top coated with epoxy, urethane, vinyl and chlorinated rubber coatings as well as conventional oil, alkyd and latex product. Note: The use of any alkyd primer under heavy-duty coatings such as epoxy, urethane, vinyl and chlorinated rubber may compromise the chemical or physical resistance properties of the overall coating system.

Warning: Flammable, harmful if inhaled, causes irritation.
Keep away from heat, sparks and flame. Vapors may cause flash fire. Do not breath vapors or spray mist. Do not get in the eyes, or skin or clothing. War appropriate, properly fitted respirator (NOISH/MSHA approved) during and after application unless air monitoring demonstrates vapor/mist levels are below applicable limits. Follow respirator manufacturer's directions for respirator use.

First Aid: In case of skin contact
Wash thoroughly with soap and water. For Eyes, flush immediately with plenty of water for 15 minutes. Call a physician, if inhaled, move to fresh air. If not breathing, give artificial respiration, preferably mouth-to-mouth, if breathing is difficult, give oxygen, and call a physician. Keep containers closed. In case of spillage, absorb and then dispose of in accordance with local applicable regulations.

Use only with adequate ventilation. Keep out of reach of children.
Notice: Reports have associated repeated and prolonged occupational over-exposure to solvents with permanent brain and nervous system damage. Intentional misused by deliberately concentrating and inhaling the contents may be harmful or fatal.

Limitation Of Liability
To the best of our knowledge the technical data contained herein are true and accurate at the date of issuance but are subject to change without prior notice. We guarantee our product to conform to Molecular-Tech Coating Inc. specifications. We make no other warranty or guarantee of any kind. Express or implied, including merchantability and fitness for particular purpose. Liability, if any is limited to replacement of the product or refund of purchased price. Labour or cost of labour and their consequential damages are herby excluded.

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