PT-500GIC EPOXY PRIMER

PT-500K Epoxy Primer is a low VOC epoxy polyamide solvent primer which conforms to and exceeds MILPRF-23377Rev. F, G, H, J & K TY. I, CL. 2. This product is on the Navy QPD (QUALIFIED PRODUCTS DATABASE) asPT-500 GIC. .PT-500KIC2 is highly recommended for use on aluminum and other metallic surfaces to insure maximum protection against corrosion. PT-500K Epoxy Primer also insures maximum adhesion of PTITUF/FILM coating, polyurethane, epoxy, enamel, lacquer or any finish coats. This Primer is intended to be used for aircraft, marine, original equipment manufacturing and all other industrial applications.

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INDUSTRY USES

• Aerospace/Aviation – aircraft (commercial & military), helicopters, radar equipment and ground equipment
• Industrial – Material handling equipment, pumps, pipes, valves and fan equipment
• Marine – Ship structures, holding tanks, decks, hull primer and machinery
• Recreation – Playground equipment, golf carts, decks, etc.

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SPECIFICATIONS

• MIL-PRF-23377 REV. F, G, H, J, K TY I & TYII, CL.C, CL.C2 & CL. N
• HONEYWELL MCS9053N TY.I; CL. 1; GR. 1
• BMS 10-11Y TY. I GRADE E

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COLORS

YELLOW, GREEN, DARK GREEN AND LIGHT GREEN PER BAC 452

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COATING PROPERTIES & CHARACTERISTICS

• Mix Ratio, by volume 3 parts Paint (Comp A) to 1 part Catalyst (Comp B)
• Toxicity No ODC’s (Ozone Depleting Chemicals)
• Recommended Dry Film Thickness 0.6 – 0.9 mil
• Solids 75% by weight
• Grind Grind = 6+N.S.
• Admixed Viscosity 17 seconds, max #4 Ford
• Admixed Weight per Gallon 10.5 lbs.
• Flexibility GE-impact 20% elongation
• Theoretical Coverage 800 sq. ft.²/gal.Pot Life 8 – 12 hours
• Coatings VOC Below 340 g/L
• Salt Spray ASTM B117 2000+ Hours
• Humidity (Filiform) 2000+ Hours
• Reducers/Thinners PT-1003 TYII

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SHELF LIFE

Shelf life is only applicable for materials stored in unopened and undamaged original factory filled containers.1 year when stored between 50⁰-85⁰ Fahrenheit.
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CHEMICAL RESISTANCE

• Lubricating Oil 24 hour immersion @250F - NO DEFECTS
• Hydraulic Fluid 24 hour immersion @150F - NO DEFECTS
• Methyl Ethyl Ketone-Soaked Cloth 100+ rubs - PASSES
• DS2 (1,5-Dichloropetane) - PASSES

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SHELF LIFE

Shelf life is only applicable for materials stored in unopened and undamaged original factory filled containers.1 year when stored at 50⁰-85⁰ F.

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SURFACE PREPARATION INSTRUCTIONS

This primer can be applied directly to metal that has been prepared according to a recognized cleaning method such as Federal Test Method Standard, #141 and Method 2013. It is recommended that all parts be pretreated with PTI’sAcid Etching Wash Primer, PT-402 which meets MIL-C-8514. However, parts can also be pretreated with chemical conversion coating materials or alodine.

• Scuff the surface with scotch bright pads.
• Dust off the surface with an air hose and wand.
• Wipe of the substrate with IPA, Acetone or PTC-2002 to remove grime and oils
• Remove all remaining dust and debris by lightly wiping the substrate with a tack or “cheese” cloth
• For additional protection apply PTI’s Acid Etch Primer prior to the Epoxy Primer.

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MIXING INSTRUCTIONS

Shake component A and B in a paint shaker for 5 – 10 minutes for optimal results. Admix by volume:

1. Add 3 parts by volume of Component “A” to 1 part by volume of Component “B” and stir thoroughly.Reduce with MIL-T-81772B TY. II at a 10% addition of the admixed primer.
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2. Mix only an amount that can be used in 4 to 8 hour time period.The admixed material should be allowed a 45-minute induction time for best application results.

Reduce: Use reducer PTI-1003 TY II (MIL-T-81772B TY. II).

• If using PTI additives to adjust the dry and cure times of the coating, please refer to those Product DataSheets for specific instructions for admixing the material.

APPLICATION

This product can be applied using a brush, roller, conventional air spray equipment or HVLP. Please consult with a PTI representative for specific equipment recommendations and settings.

1. Make sure pots, guns, and lines are purged and cleaned.
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2. Mix both base and catalyst thoroughly and filter/strain before spray application. NOTE: It is not recommended to strain flat/matte coatings.
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3. HVLP spray equipment pressure: 7-10psi. Conventional spray equipment, 15-35psi
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4. Always air-blow and tack wipe the surfaces to be painted. Aircraft should be grounded to prevent static.
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5. Best application results: apply 2 coats: 1 fog/tack coat & 1 full coat from 0.6 – 0.9 mil thickness.
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6. Do not allow more than 24 hours to pass before applying the second coat.
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7. Recommended Dry Film Thickness is 0.6-0.9 mils.

NOTE: Application of PTI products requires the use of all OSHA approved safety equipment, including proper ventilation. Additionally, PTI products require the recommended temperature/humidity conditions and film thickness ranges for optimal performance. The material, hangar, and aircraft skin temperatures should be no lower than 75⁰ F / 25⁰ C before, during and after application.

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DRYING & CURING SCHEDULE

Dry times are based on the dry film thickness between 0.6 - 0.9 mils (15-23 microns).Air Dry:Allow applied coating to dry for at least 5 hours before apply a top coat. This primer may be left uncoated for up to3 days without have to scuff or sand. After 4 days a simple sanding or scuff followed by a solvent wipe will be sufficient before applying the topcoat.

• Tack free within 5 hours
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• Dry hard within 8 hours
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• A full chemical cure can take up to 7 days depending on conditions. The Specifications calls for a 14 days at ambient temperatures

Force Cure:

If force curing with heat is possible then air dry for 15 minutes followed by 1 hour at 150°F - 200°F. This dry time is only intended for testing. Let the coated material cool to room temperature before applying a topcoat.

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EQUIPMENT CLEANUP

Use clean PT-1003 Type II Reducer or Acetone. Do not allow material to dry or cure inside any equipment.

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