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APCO APCO 255-1044 Epoxy Ester Primer

1 of 10 products in this brand
APCO APCO 255-1044 Epoxy Ester Primer is a fast drying single part epoxy ester primer. Provides tight barrier protection to properly prepared steel surfaces. Provides increased chemical resistance compared to conventional alkyds. 255 is specifically formulated for use on electrical transformers, but may also be used anywhere increased chemical resistance is desired.

Product Type: Primer

Application Area: Power Transformers

Compatible Substrates & Surfaces: Metal, Steel

Features: Chemical Resistant, Fast Drying, Good Barrier Properties

Application Method: Brush, Roller, Spray

Chemical Family: Epoxy & Epoxy Derivatives, Esters

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Identification & Functionality

Product Type
Generic Type

Epoxy Ester

Features & Benefits

Features
  • Fast drying
  • Increased chemical resistance

Applications & Uses

Application Area
Application Method
Compatible Substrates & Surfaces
Substrate & Surface Preparation
  • Must be clean and dry. Any dirt, dust, oil, contaminants, loose rust or loose mil scale must be removed.
  • Immersion Carbon Steel: Not Recommended
  • Non-Immersion Carbon Steel: Minimum SSPC-SP3 Power tool Cleaning. For optimum performance SSPC- SP6 Commercial Blast, surface profile 1.5-3.0 Mil.
  • Galvanized Steel: Not recommended
  • Previously painted surfaces: Surface must be sufficiently roughened, either by abrasive blasting or mechanical abrasion. Surface must attain a minimum 3B rating in accordance with ASTM D3359 “X-Scribe” test. Apply a test patch to check compatibility, prior to primary application.
  • Topcoats: APCO 231, APCO 220
Application Equipment

Spray Application:

  • Conventional: Pressure pot with dual regulators, 3/8” I.D. material hose, Binks 2001 Gun w/66 series nozzles and 565 needle.
  • Airless: Graco 36:1 Min. 1⁄4” material line. Tip size .011-.013 Output PSI- 3000

Brush & Roller: Touch up only

  • Brush: Natural Bristle
  • Roller: 1⁄4” Nap cover with Phenolic Core
Mixing & Thinning
  • Components: One
  • Mixing: Mix to uniform consistency and color. Frequent stirring is required to keep aluminum pigments suspended.
  • Thinning: Normally not required
  • Spray: Up to 12 oz/gal with S100 if necessary
Application
  • Pre-application: Flush all equipment with thinner S100 or xylene
  • Temperature: Application range from 50°F-110°F surface temperature. Do not apply below 50°F.
  • Method: Apply one coat maintaining a wet edge to achieve a WFT of 4-6 Mils. Maximum performance will be achieved with two coats totaling 4-6 mils DFT.
Application Continued

Inspection: Visually inspect film to ensure adequate coverage.

Clean up & disposal: After use immediately flush all equipment with thinner S100 or xylene. Dispose of all containers, solvents and unused materials in accordance with all local, state and federal regulations.

Curing schedule: Times based upon 75°F

  • Dry to touch: 30 minutes
  • Dry to recoat: before 2 hours
  • Dry through: 24 hours

A critical re-coat time may occur between 2 and 48 hours at room temperature. This may fluctuate depending on temperature and film thickness.

Test small inconspicuous area first. Dry times are greatly affected by weather conditions and film thickness.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Solids Content48.0% by Volume-
VOC Value3.71lbs/galEPA Method 24
Performance Properties
ValueUnitsTest Method / Conditions
Theoretical Coverage (3 mil DFT)256 ft²
Theoretical Coverage (mil)769 ft²

Packaging & Availability

Packaging Type
Packaging & Handling:
  • Unit sizes: Drums
  • Shipping Weight: 12.25 lbs/gal Unit