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Epoxy Hi-Build
#3900 Series
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Product Profile:
General Description:
This material is a high-solids polyamide cure epoxy coating that provides room temperature cured finishes. Polyamide cured epoxies combine outstanding resistance to solvents, tap water, and most forms of shock and abrasion.
Common Usage:
Excellent adhesion and flexibility are obtained over ferrous and non-ferrous metals and "green" or dry concrete floors. If desired or warranted by the service environment, can be topcoated with Ancothane #4900 polyurethane.
Color: White, Standard, and Custom colors.
Finish: High Gloss
Activator Required: Yes, #3906
 
Coating Systems:
Primer Coats:
For maximum protection, use Anchor #3900 Hi-Build Epoxy primer. Consult your Anchor representative for specific job recommendations.
 
Surface Preparation:
Old Work: Prior to application, ensure that the substrate is free of any contaminants according to SSPC-SP1. All damaged ares should be repaired and existing paint should be in good condition. Test existing paint for lifting and if present, it must be removed or application of a barrier primer must be used. New Work: For best performance on steel, the surface should be blasted to a minimum SSPC-SP10, including the removal of all mill scale. Prior to blasting, remove all flux and scab from the welding and grind smooth all rough weld seams and sharp edges. Remove any grease, oil or dirt with solvent or chemical cleaner before blasting. The surface should be coated immediately after blasting. Concrete Floors: Old concrete floors must be tested for lifting and old paint removed if not resistant to epoxy. The surface must be cleaned of all dirt, oils, or other contaminants with a non-soapy detergent; thoroughly rinsed and dried. New floors must be cured. All floors then must be etched with 3% solution of Muriatic Acid, then thoroughly rinsed and dried.
 
Technical Data:
Volume Solids: 50.16% varies by color
Recommended Thickness: 2 mils dry per coat minimum. 2-4 coats recommended.
Drying Time: 
Temperature To Touch To Recoat
75 F / 55% R.H. 3 Hours Within 48 Hours
Cooler temperatures and higher humidity will require a longer cure time. However, very rapid cures can be obtained by force drying or baking the epoxy.
Architectural and Industrial Maintenance Category: Industrial Maintenance Coatings
Maximum Allowable V.O.C.: 3.8 lbs./gal. (450 g/l)
Actual V.O.C.: 3.39 lbs/gal. (407 g/l)
Theoretical Coverage:
805 sq. ft./gallon @ 1 mil dry, assuming no application losses. Coverage will vary depending on color, surface texture and application technique.
Packaging: 55 Gallon drums, 5 Gallon pails, 1 Gallon cans, and quart (1/4 gallon) cans
Storage Temperature:
Minimum 35 F Maximum 110 F
Chemical Resistance:
Alkalis: Excellent
Acids: Fair
Water: Excellent
Strong_Solvents: Good
Health & Safety:
Refer to the front of this manual, the product label itself, and your Anchor representative concerning a Material Safety Data Sheet for complete information on this product.
Pot Life: 24 hours after catalyst is mixed at 77 F. (Keep cool and agitated)

Application:
Coverage Rates Per Coat: 
Dry Mils Wet Mils Sq.Ft./Gal.
Suggested: 3.0 6.0 268
Minimum: 2.0 4.0 402
Maximum: 4.0 8.0 201
Mixing: One part Anchor #3906 Catalyst to one part Epoxy. Allow to stand 30 minutes before applying.
Thinning: Thin only if necessary and compliant with local regulations with Anchor #3905.
Surface Temperature:
Minimum 55 F Maximum 110 F
Application Equipment:
Airless Spray
Pressure: 1800-2400 psi
Tip: .013"-.017"
Conventional Spray
Air Pressure: 75-100 psi
Fluid Pressure: 10-20 psi
Brush: Recommended for small areas only. Use a high quality natural china bristle brush.
Roller: Use 3/8" or 1/2" synthetic nap covers.
Cleanup: Clean equipment thoroughly before and immediately after using Anchor #3905.
Application Considerations:
This product can be applied by brush, roller or spray equipment. The cure time is directly affected by the substrate temperature. The coating will not cure where the substrate is below 50 F; at 70 F the cure time is approximately 7 days. Avoid applications where the relative humidity is above 85%. Apply in wet coats to avoid dusting. When spraying, use a cross hatch method, overlapping each pass 50%. On a derusted surface, the application of a dry film thickness of at least 2.0 mils is recommended.

Limited Warranty:
The technical data on this label or on other data is true and accurate to the best of our knowledge. We guarantee our products to conform to ANCHOR PAINT MFG. CO. quality control standards. Due to misuse in handling, storage, application and workmanship or variables such as weather or surface integrity that are beyond our control, Anchor Paint does not authorize any representative to make any warranty or merchantability of fitness of this product. Any liability whatsoever of Anchor Paint Mfg. Co. to the buyer or user of this product is limited to the purchaser’s cost of the product itself.

 

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