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Aeroglaze® 9929 two-component epoxy primer is designed for use on properly prepared aluminum and steel surfaces for applications that require protection against corrosion.
Unit of Measure

Typical Properties

Appearance

 N/A Yellow Liquid
Viscosity at 77 Degree Fahrenheit (ºF) (25 Degree Celsius (ºC)) Temperature1 N/A 1000 to 7000 cP

Test Method for Viscosity

 N/A American Society for Testing and Materials (ASTM D 2196-86)

Density

 N/A 1.45 to 1.50 kg/L12.14 to 12.64 lb/gal

Test Method for Density

 N/A American Society for Testing and Materials (ASTM D 1475-85)

Solids Content by Weight

 N/A 67.5 to 72 %

Test Method for Solids Content (Modified)

 N/A American Society for Testing and Materials (ASTM D 2369-87)

Flash Point (Seta) Closed Cup Temperature

 N/A 19 ºC67 ºF

Test Method for Flash Point (Seta) Closed Cup Temperature

 N/A American Society for Testing and Materials (ASTM D 3278-82)

Volatile Organic Compounds (VOC) Volume

 N/A 446 g/L3.71 lb/gal

Test Method for Volatile Organic Compounds (VOC)

 N/A American Society for Testing and Materials (ASTM D 3960-87)

Note for Typical Properties

 N/A Data is typical and not to be used for specification purposes.

Typical Properties of Mixed Primer

Mix Ratio by Volume (Part A/Part B)

 N/A 3.5:1

Mix Ratio by Weight (Part A/Part B)

 N/A 5.5:1

Mixed Appearance

 N/A Yellow

Viscosity of Mixed Primer at 25 Degree Celsius (ºC) (77 Degree Fahrenheit (ºF)) Temperature

N/A 735 cP

Test Method for Viscosity of Mixed Primer

 N/A American Society for Testing and Materials (ASTM D 2196-86)

Density of Mixed Primer

 N/A 1.35 kg/L11.3 lb/gal

Test Method for Density of Mixed Primer

 N/A American Society for Testing and Materials (ASTM D 1475-85)

Solids Content of Mixed Primer by Volume

 N/A 49.8 %

Solids Content of Mixed Primer by Weight

 N/A 68.6 %

Test Method for Solids Content of Mixed Primer (Modified)

 N/A American Society for Testing and Materials (ASTM D 2369-87)

Volatile Organic Compounds (VOC) Volume for Mixed Primer

 N/A 435 g/L3.63 lb/gal

Test Method for Volatile Organic Compounds (VOC) Volume for Mixed Primer

 N/A American Society for Testing and Materials (ASTM D 3960-87)
Working Life of Mixed Primer2 N/A 8 hour

Dry Film Density of Mixed Primer

 N/A 1.9

Dry Film Coating Weight at 1 Mil Thickness

 N/A 4.47 g/ft²

Note for Typical Properties of Mixed Primer

 N/A Data is typical and not to be used for specification purposes.

Shelf Life/Storage

Shelf Life/Storage

 N/A Shelf life is one year from date of shipment when stored in a dry, well ventilated area at temperatures under 27 ºC (80 ºF) in original, unopened containers. Do not store or use near heat, sparks or open flame.

Features

Features and Benefits

 N/A Easy to Use - Prepackaged kits include components in the proper mix ratio.

Corrosion Resistant - Provides excellent corrosion protection.

Applications

Surface Preparation

 N/A Thoroughly clean surfaces prior to primer application to remove all dirt, oil, grease and oxides.

Different substrates require specific surface preparation methods as listed below. Steel Structures Painting Council (SSPC) and National Association of Corrosion Engineers (NACE) standards are listed where applicable.

Before coating special alloys, chemically treated surfaces or metal surfaces not listed below, apply test patches of Aeroglaze® 9929 epoxy primer and topcoat with appropriate coating to determine if primer will provide adequate adhesion to the surface.

Ferrous Substrates

 N/A Remove all grease and oil contaminants, following SSPC-SP 1 Solvent Cleaning procedures, by wiping with a suitable solvent such as xylene. Remove all weld splatter and prepare weld seams, rivet heads and joints using SSPC-SP 3 Power Cleaning procedures.

Blast clean the surfaces using a dry, quality blast media to obtain a 51-76 micron (2-3 mil) white metal blast anchor profile. Follow SSPC-SP 5 / NACE No. 1 White Metal Blast Cleaning procedures. Blast cleaning must remove all mill scale, rust and old paint. Remove all blast material and dust from the prepared surfaces by brushing, filtered air blow off or vacuuming prior to primer application.

Apply Aeroglaze® 9929 primer to blast-cleaned surfaces immediately after the surface has been prepared. Blushing or rusting will occur very quickly if prepared surface is left exposed to humid air.

Non-Ferrous Substrates

 N/A Except for stainless steel, most non-ferrous substrates such as aluminum, some alloys and galvanized steel are too soft to blast clean. Prepare these substrates by either priming with Aeroglaze® 9924, 9924V or 9947 wash primer or alodine treating as follows:
  1. Detergent and solvent clean using SSPC-SP 1 Solvent Cleaning procedures.
  2. Deoxidize surface using phosphoric acid solution per Federal Test Standard 141 Method 2013.1, Table 2.
  3. Perform chemical conversion treatment per Mil-C-81706/Mil-C-5541 D.

Mixing

 N/A Thoroughly stir Aeroglaze® 9929 Part A before use. While stirring, add Aeroglaze® 9929 Part B and mix to a uniform consistency. Allow mixed primer to stand for induction for 15-30 minutes. If less than a full prepackaged kit is mixed, mix ratio of Aeroglaze® 9929 primer is 3.5:1, Part A to Part B by volume.

Dilute primer to obtain improved spray and flow properties, and better control of the application film thickness. Dilute up to 15% by volume with Aeroglaze® 9953 thinner. Slowly add the thinner while stirring the mixed primer.

After thinned and uniformly mixed, use primer immediately. Working life of Aeroglaze® 9929 primer is 8 hours at 25 ºC (77 ºF). Working life is shortened as the temperature increases. To reduce waste, mix only the amount of primer to be used in a 4-hour period.

Applying

 N/A Aeroglaze® 9929 primer is best applied when substrate and ambient temperatures are above 10 ºC (50 ºF), and substrate temperature is a minimum 2.8 ºC (5 ºF) above the dew point.

Apply primer by spray methods using conventional or airless spray equipment. Primer must be applied in a single wet pass with a 50% overlap. Hold the gun at right angles to the surface, approximately 20.3-30.5 cm (8-12 in) away, and apply in even, parallel passes. Coverage rate is 4.9-19.6 m2/L (200-799 ft2/gal).

Recommended film thickness depends on the substrate being primed. For chemically-treated aluminum, Aeroglaze® 9929 primer should be applied at a dry film thickness of 19.1-25.4 micron (0.75-1.0 mil). For blasted steel, Aeroglaze® 9929 primer should be applied at a dry film thickness of 75.0-100.0 micron (3.0-4.0 mil). Aeroglaze® 9929 primer may also be brush applied for touch-up purposes.

Curing

 N/A Aeroglaze® 9929 primer cures by a chemical reaction between the epoxy and polyamide resins. Cure rate is dependent on the film thickness, temperature, relative humidity and amount of air circulation needed to remove the solvent. When cured at 25 ºF (77 ºF), a 25.4 micron (1 mil) dry film thickness is typically tack free in 2-4 hours; a 101.6 micron (4 mil) dry film thickness is typically tack free in 7-9 hours.

Primed surfaces must be topcoated with Aeroglaze® polyurethane coatings before primer has cured for 18 hours.

Aeroglaze® 9929 primer may be recoated after the primer is tack free. Primer must be recoated before it has cured 18 hours or adhesion failures may result. Curing at elevated temperatures can greatly reduce recoat time; baking is not recommended.

If the maximum recoat time is exceeded, the surface must be roughened by sanding with fine to medium grit sandpaper. Remove the sanding dust and solvent wipe with Aeroglaze® 9953 thinner. For optimum adhesion, spray apply an additional 25.4 micron (1 mil) coat of Aeroglaze® 9929 primer and cure for 2 hours minimum/18 hours maximum before topcoating with Aeroglaze® polyurethane coatings.

Cleanup

 N/A Use Aeroglaze® 9953 thinner to clean equipment and hoses. Thoroughly clean all spray equipment immediately after use as the primer will continue to cure inside the equipment, making their removal more difficult.

Prior to applying polyurethane coatings, flush spray equipment with Aeroglaze® 9958 thinner to remove any Aeroglaze® 9953 thinner remaining in the equipment. Aeroglaze® 9953 thinner contains solvents that will inhibit the proper cure and/or appearance of polyurethane coatings.
  • 1 Brookfield LVT
  • 2 At 25 ºC (77 ºF)