AST ACME, Inc. - Item # MIL-P24441B, MIL-P24441B, Type III Epoxy Polyamide
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Item # MIL-P24441B
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Item # MIL-P24441B MIL-P24441B, Type III Epoxy Polyamide
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Mil-24441B, Type III is a two component, VOC compliant epoxy polyamide system, formulated for immersion service and to protect surfaces from environmental attack. For use where air pollution regulations for marine coatings are restricted to a maximum of 340 g/L or 2.8 lb/gal. This product complies with QPL Mil-P-24441B-103, Type III.
Application Condition
·
Application Equipment
·
Brush
·
Roller
·
Specifications
·
Ordering Information
·
Characteristics
·
Drying Schedule 5.0 mils wet @ 50% RH
·
Recommended Uses
·
Performance Characteristics
·
Surface Preparation
·
Clean-Up
·
Performance Tips
·
Recommended Systems
Application Condition
Air and Surface Temperature
35°F (Minimum)
100°F (Maximum)
Min. Material Temperature
1
60 ºF
Max. Relative Humidity
85 %
1
At least 5°F above due point.
Application Equipment
Airless Spray
Minimum Pump
30:1
Hose ID
3/8 in
Tip
0.015 in
Filter
30 mesh
Reduction
As needed up to 5% by volume
Conventional Spray
Gun
DeVilbiss MBC
Air Cap
64 º
Needle
D
Atomization Pressure
70 psi
Fluid Pressure
30 psi
Reduction
As needed up to 5% by volume
Brush
Brush
Natural Bristle
Roller
Cover
3/8" woven with phenolic core
Specifications
Tinting
Do not tint.
Primer Color
Green
Finish Color
Dark Grey Ro 1.8
Dark Grey Ro 3.6
Dark Grey Ro 6
Haze Grey
Matte Red
White
Safety Precautions
Published technical data and instructions are subject to change without notice.
Ordering Information
Packaging
1 and 5 gallon containers
Weight
10.3 - 11.5 ± 0.2 lb/gal
Characteristics
Color : Volume Solids
Primer
Formula 150 Green : 59.2 ± 1%
Finish
Formula 151 Haze Gray : 58.6 ± 1%
Formula 152 White : 58.1 ± 1%
Formula 153 Dark Gray Ro 1.8 : 58.5 ± 1%
Formula 154 Dark Gray Ro 3.6 : 58.4 ± 1%
Formula 155 Dark Gray Ro 6 : 58.4 ± 1%
Formula 156 Matte Red : 61.0 ± 1%
VOC (EPA Method 24) :
340 g/l; 2.8 lb/gal, maximum mixed
Mix Ratio
: 1:1 by volume
Recommended Spreading Rate per coat :
Wet Mils Primer
: 5.0 - 6.0
Dry Mils Primer
: 3.0 - 4.0
Coverage Primer
: 240 - 320 sq ft/gal approximate
Wet Mils Topcoats
: 3.5 - 5.0
Dry Mils Topcoats
: 2.0 - 3.0
Coverage Topcoats
: 320 - 450 sq ft/gal approximate
Note :
Brush or roll application may require multiple coats to achieve maximum film thickness and uniformity of appearance.
Pot Life :
5 hours at 77°F, 50% RH
Sweat-in Time
35 -60°F : 2 hours
61 - 70°F : 1 - 1 1/2 hours
71 - 90°F : 30 minutes
90°F+ : none
Application of coating above maximum or below minimum recommended spreading rate may adversely affect coating performance.
Shelf Life
: 36 months, unopened at 77°F
Flash Point
: 99°F SETA Flash, mixed
Reducer/Clean Up
: Reducer #130, R7K130
Drying Schedule 5.0 mils wet @ 50% RH
Temperature
Dry to Touch
Minimum Recoat Epoxy
Minimum Recoat Non-Epoxy
Maximum Recoat
Cure to Service
35 - 40°F
12 hours
24 hours
12 hours
14 Days
6 Days
41 - 60°F
8 hours
18 hours
8 hours
12 Days
5 Days
61 - 80°F
6 hours
12 hours
6 hours
10 Days
4 Days
81 - 100°F
4 hours
8 hours
4 hours
7 Days
64 hours
A non-epoxy topcoat must be applied before the previous epoxy topcoat has hardened and while the epoxy is in a slightly tacky condition. This overcoat period is mainly dependent on the existing environmental conditions. If the epoxy is not tacky an additional coat of epoxy must be applied to provide the required tacky condition.
Recommended Uses
For use over prepared substrates such as steel and aluminum in industrial and marine environments where a hard, durable, chemical resistant coating is desired.
Marine vessels: bilges, tanks, underwater hulls
Off shore platforms
For use where air pollution regulations for marine coatings are restricted to a maximum of 340 g/L or 2.8 lb/gal.
Performance Characteristics
Complies with Military Specification QPL MIL-P-24441B-103, Type III
Color
Product/Rex No.
Primer
Green - 150 Part A
N10G350
Hardener for Primer 150 Part B
N10V350
Finishes
Haze Gray 151 Part A
N10A351
White - 152 Part A
N10W352
Dark Gray - Ro 1.8 153 Part A
N10A353
Dark Gray - Ro 3.6 154 Part A
N10A354
Dark Gray Ro 6 155 Part A
N10A355
Hardener for 151-155 Part B
N10V351
Red - 156 Part A
N10R356
Hardener for 156 Part B
N10V356
Surface Preparation
Surface must be clean, dry, and in sound condition. Remove all oil, dust, grease, dirt, loose rust, and other foreign material to ensure adequate adhesion.
Iron & Steel (immersion service)
Remove all oil and grease from surface by Solvent Cleaning per SSPC-SP1. Minimum surface preparation is Near White Metal Blast Cleaning per SSPC-SP10. Blast clean all surfaces using a sharp, angular abrasive for optimum surface profile (1-3 mils). Remove all weld spatter and round all sharp edges by grinding to a minimum 1/4" radius. Prime any bare steel the same day as it is cleaned or before flash rusting occurs.
Iron & Steel (atmospheric service)
Remove all oil and grease from surface by Solvent Cleaning per SSPC-SP1. Minimum surface preparation is Commercial Blast Cleaning per SSPC-SP6. For better performance, use Near White Metal Blast Cleaning per SSPC-SP10. Blast clean all surfaces using a sharp, angular abrasive for optimum surface profile (2 mils). Remove all weld spatter and round all sharp edges by grinding to a minimum 1/4" radius. Prime any bare steel the same day as it is cleaned or before flash rusting occurs.
Aluminum
Remove all oil, grease, dirt, oxide and other foreign material by Solvent Cleaning per SSPC-SP1. Minimum surface preparation is Brush Off Blast Cleaning per SSPC-SP7.
Min. Recommended Surface Preparation
Iron & Steel
Atmospheric : SSPC-SP6, 2.0 mil profile
Immersion : SSPC-SP10, 1.0-3.0 mil profile
Aluminum : SSPC-SP7 or Power Wire Brush.
Surface preparation must be completed as indicated.
Mix contents of each component thoroughly with power agitation. Make certain no pigment remains on the bottom of the can. Then combine one part by volume of Part A with one part by volume of Part B. Thoroughly agitate the mixture with power agitation. Allow the material to sweat-in as indicated below prior to application. Re-stir before using.
If reducer solvent is used, add only after both components have been thoroughly mixed, after sweat-in.
Clean-Up
Clean spills and spatters immediately with Reducer #130, R7K130 Clean tools immediately after use with Reducer #130, R7K130 Follow manufacturer's safety recommendations when using any solvent.
Performance Tips
Stripe coat all crevices, welds, and sharp angles to prevent early failure in these areas.
When using spray application, use a 50% overlap with each pass of the gun to avoid holidays, bare areas, and pinholes. If necessary, cross spray at a right angle
Spreading rates are calculated on volume solids and do not include an application loss factor due to surface profile, roughness or porosity of the surface, skill and technique of the applicator, method of application, various surface irregularities, material lost during mixing, spillage, over thinning, climatic conditions, and excessive film build.
Excessive reduction of material can affect film build, appearance, and adhesion.
Do not apply the material beyond recommended pot life.
Do not mix previously catalyzed material with new.
In order to avoid blockage of spray equipment, clean equipment before use or before periods of extended downtime with Reducer #130, R7K130
For low temperature, atmospheric application, material should be at least 60°F.
Recommended Systems
Steel :
1 ct. MIL-P-24441B, Type III Primer @ 3.0 - 4.0 mils dft
2 cts. MIL-P-24441B, Type III Epoxy @ 2.0 - 3.0 mils dft/ct
3 cts. MIL-P-24441B, Type III Epoxy @ 2.0 - 3.0 mils dft/ct
Steel, non-immersion :
1 ct. MIL-P24441B, Type III Epoxy @ 2.0 - 3.0 mils dft
2 cts. MIL-E-24635B @ 1.5 - 2.0 mils dft/ct
Aluminum :
1 ct. MIL-P-24441B, Type III Primer @ 3.0 - 4.0 mils dft
2 cts. MIL-P-24441B, Type III Epoxy @ 2.0 - 3.0 mils dft/ct
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AST Acme, Inc.
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