Aeroglaze® 9741 is a two-part epoxy primer designed for use on aluminum, metal, and prepared composite surfaces. Aeroglaze® 9741 primer/tie-coat is applied to scuff-sanded urethane top coats and epoxy primers. It is also used as a tie coat between scuff-sanded weather worn coatings and new urethane topcoats.
Unit of Measure
Typical Properties
Solids Content by Weight |
N/A 76.8 % |
Test Method for Solids Content (Modified) |
N/A American Society for Testing and Materials (ASTM D 2369-87) |
Density |
N/A 1.34 kg/L11.3 lb/gal |
Test Method for Density |
N/A American Society for Testing and Materials (ASTM D1475-85) |
Maximum Viscosity at 25 Degree Celsius (ºC) (77 Degree Fahrenheit (ºF)) Temperature (#4 Ford cup) |
N/A 40 seconds |
Test Method for Flash Point (Closed Cup) Temperature (Setaflash) |
N/A American Society for Testing and Materials (ASTM D 3278-82) |
Volatile Organic Compounds (VOC) Volume |
N/A 2.6 lb/gal |
Specifications
Note for Typical Properties |
N/A Data is typical and not to be used for specification purposes. |
Color |
N/A Gray Red |
Directions for Use
Surface Preparation |
N/A For maximum corrosion protection and long service life, clean and properly prepare all substrates before priming. |
Non-Ferrous Substrates |
N/A
Except for stainless steel, non-ferrous substrates (aluminum, special alloys) are usually too soft to blast clean. Pre-prime with either Aeroglaze® 9924, Aeroglaze® 9924V, or Aeroglaze® 9947 wash primers. If substrates are not pre-primed with one of these primers, treat with an appropriate aluminum pretreatment as follows:
|
Ferrous Substrates |
N/A Blast steel surface clean to a 50-75 microns (2-3 mils) profile using clean, unused, chloride-free inert blast media. Do not use steel shot. Remove surface contaminants before priming. Prime within 4 hours to prevent flash rusting. |
Composites |
N/A Scuff-sand and remove sanding dust before priming. |
Mixing |
N/A
Aeroglaze® 9741A - Volume: 3, Weight: 100.00 Aeroglaze® 9700B - Volume: 1, Weight: 20.71 Aeroglaze® 9741 epoxy primer/tie-coat is packaged in pre-measured kits. Thoroughly mix Part A of the primer before adding Part B. After adding Part B, thoroughly mix; then let the mixed primer stand 30 minutes before using. Stir the primer again just prior to use. The material may settle, therefore, thoroughly mix before using. Aeroglaze® 9741 epoxy primer/tie-coat requires no thinning for application. |
Applications |
N/A
Apply Aeroglaze® 9741 epoxy primer/tie-coat by spray method using conventional or HVLP equipment. Apply by holding the spray gun at a right angle to the surface, 8 to 12 inches away. Apply with even, parallel passes, with 50 percent overlap. Apply Aeroglaze® 9741 epoxy primer/tie-cost only when the surface and ambient temperatures are above 10ºC (50ºF), with the surface temperature 2.7 ºC (5 ºF) above the dew point. The typical dry film thickness of Aeroglaze® 9741 epoxy primer/tie-coat is 15 - 23 microns (0.6 - 0.9 mil). |
Pot Life |
N/A Aeroglaze® 9741 epoxy primer/tie-coat has a 4 hour potlife at 25 ºC (77 ºF). The pot-life is shorter at higher temperatures, and longer at lower temperatures. In order to ease application and reduce waste, only mix the amount of primer to be used in a 4 hour period. |
Curing Conditions and Recoat Time |
N/A Aeroglaze® 9741 epoxy primer/tie-coat may be recoated after the primer is tack-free (5 hours minimum cure at 25 ºC [77 ºF]). Do not allow Aeroglaze® 9741 epoxy primer/tie-coat to cure more than 18 hours before recoating; doing so will cause adhesion failure of successive coats. Elevated air temperatures accelerate the cure, thus shortening the recoat time. Lower air temperatures slow the cure, thus lengthening the recoat time. Polyurethane coatings should not be applied to Aeroglaze® 9741 primer/tie-coat primed surfaces if temperature is below the dew point. |
Note |
N/A
Do not bake the primed substrate. Baking the primed substrate in attempt to shorten recoat time will cause the maximum recoat time to be exceeded. If the maximum recoat time is exceeded, the surface must be roughened by sanding with fine to medium grit sand paper. Remove the sanding dust and solvent wipe with Aeroglaze® 9958 thinner before topcoating. To achieve best adhesion, reapply the Aeroglaze® 9741 epoxy primer/tie-coat and then topcoat within the recommended time with an Aeroglaze® polyurethane coating. |
Cleanup |
N/A
After applying Aeroglaze® 9741 epoxy primer/tie-coat, clean application equipment with Aeroglaze® 9953 thinner. Flush the primer from hoses, spray-guns and other equipment during lunch breaks, overnight, and during long down times. Mixed Aeroglaze® 9741 epoxy primer/tie-coat that is left in or on equipment will continue to cure, thus making clean-up more difficult. Before using spray equipment to apply Aeroglaze® polyurethanes, flush thoroughly with Aeroglaze® 9958 thinner to remove any residual Aeroglaze® 9953 thinner. Aeroglaze® 9953 thinner is not compatible with Aeroglaze® polyurethane coatings. |
Precautions for Use and Storage
Precautions for Use and Storage |
N/A
Four hour workable pot life at 25 ºC (77 ºF). Mix only enough to be used in a 4 hour period, for ease of application and reduced waste. Maximum cure time before topcoating is 18 hours. Before using this or any Socomore product, refer to the Material Safety Data Sheet (MSDS) and label for safe use and handling instructions. For industrial/commercial use only. Must be applied by trained personnel only. Not to be used in household applications. Not for consumer use. Manufactured for Socomore by: LORD® Corporation, Saegertown, PA |
