company tower banner
Products Techniques Company Logo

Products Techniques PT-500E Epoxy Primer

Products Techniques PT-500E Epoxy Primer is a low VOC epoxy polyamide solvent primer which conforms to MIL-P-23377 Rev. E. This coating is highly recommended for use on aluminum and plated plated or un-plated metallic surface to insure maximum protection against corrosion. PTI Epoxy Primer also insures maximum adhesion of PTI TUF/FILM coating, or any other paint or lacquer finish coats. This Primer is intended to be used for aircraft, marine, original equipment manufacturing and/or industrial applications.

Product Type: Primer

Application Area: Marine Applications

Compatible Substrates & Surfaces: Aluminum, Metal, Painted Surfaces

Features: Chemical Resistant, Corrosion Resistant, Good Adhesion, Low VOC

Application Method: Brush, Roller, Spray

Chemical Family: Epoxy & Epoxy Derivatives

Technical Data Sheet

Similar Products

  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Product Type

Features & Benefits

Labeling Claims

Applications & Uses

Application Area
Application Method
Compatible Substrates & Surfaces
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’s Acid 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.
Mixing Instructions

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

  1. Add 1part by volume of Component “A” to 1part by volume of Component “B” and stir thoroughly. Stir each well before mixing. Allow to stand one (1) hour at room temperature before using. Reduce with exempt solvent(s) if required (see use of solvent above).
  2. Mix only an amount that can be used in 4-8 hour time period.

Add the Catalyst into the Base.
Admixed material should be allowed a 45-minute induction time for best application results.

Reduce: Use reducer PTI-1003 TYII, PT-1002 or Acetone to thin the material.

Application

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

  1. Make sure pots, guns, and lines are purged and cleaned.
  2. Mix both base and catalyst thoroughly and filter/strain before spray application. NOTE: It is not recommended to strain flat/matte coatings.
  3. HVLP spray equipment pressure: 7-10psi. Conventional spray equipment 15-25psi
  4. Always air-blow and tack wipe the surfaces to be painted. Aircraft should be grounded to prevent static.
  5. Best application results: apply 2 coats: 1 fog/tack coat & 1 full coats from 0.6 – 0.9 mil thickness.
  6. Do not allow more than 24 hours to pass before applying the second coat.
  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 75°F / 25°C before, during and after application.

Drying and Curing Schedule

Dry times are based on the dry film thickness between 0.6 - 0.9 mils (25-50 microns).

Air Dry: Allow applied coating to dry for at least 1 hour before applying a top coat.

Force Cure: When force curing this primer do not let temperatures exceed 280°F for more than 2 hours
Always bring the coating to the “tack free” stage before top coating.

Equipment Cleaning

Use clean PT-1003 Type II, PT-1002 or Acetone. Do not allow material to dry or cure inside any equipment.

Recommended Reducers

PT-1003 TYII, PT-1002 & ACETONE

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Admixed Viscosity (max #4 Ford)14.0seconds
Admixed Weight per Gallon11.5lbs.
Coatings VOCmax. 340g/L
Humidity (Filiform)min. 1000hours
Mix Ratio by Volume1 part Paint (Comp A) to 1 part Catalyst (Comp B)
Pot Life8 - 12hours
Recommended Dry Film Thickness0.6 - 0.9mil
Salt Spraymin. 1000HoursASTM B117
Theoretical Coverage800.0sq. ft./gallon
Weight Component “A” approx. 13lbs per gallon
Weight Component “B”approx. 10lbs per gallon

Regulatory & Compliance

Specifications
  • MIL-P-23377E TY I/II, CL.2/CL.3
  • BMS 10-11Y TY. I GR. B
  • NAI 1269

Technical Details & Test Data

Chemical Resistance
  • Lubricating Oil 24 hour immersion at 250°F - No Defects
  • Hydraulic Fluid 24 hour immersion at 150°F - No Defects
  • Methyl Ethyl Ketone-Soaked Cloth 100+ rubs - Passes
  • DS2 (1,5-Dichloropetane) - Passes
  • Full Chemical Resistance after 7 Days

Storage & Handling

Shelf Life

Shelf life is only applicable for materials stored in unopened and undamaged original factory filled containers. 1 year when stored between 50°-85° Fahrenheit.