MFI Systems™ DTM Enamel Primers are high-build, industrial-grade primers that can be applied to bare steel, pretreated aluminum, fiberglass and composite plastics. They have excellent adhesion and corrosion resistant properties when applied to bare steel. DTM Enamel Primers can be topcoated without sanding in as little as 30 minutes. Use with MFI-500 High Solids Activator and MFI 400 Series Zero V.O.C. Reducers.
Compatible Substrates
- Cleaned or Blasted Steel
- Cleaned and sanded painted surfaces
- Pretreated aluminum
- Epoxy Max Epoxy Primers
- MFI-590 Epoxy Sealers
- Properly Prepared Fiberglass/SMC
Mixing
- 8 Parts:MFI-550/555/560 DTM Enamel Primers
- 1 Part: MFI-500 High Solids Activator
- 2 – 3 Parts: MFI-400 Series Zero VOC Reducer
Application
- Do not apply at temperatures below 50°F
- Drying time listed may vary, depending upon film build, temperature, humidity and degree of air movement
- Excess film thickness will retard dry times and affect the recoat window
- Avoid moisture contamination with the Activator – moisture can gel the material and affect the performance properties
Cure Times
Air-dry (assumes 77°F & 50% Relative Humidity) Bake / Force Cure
To Topcoat: 30 – 60 min. Substrate Temp: 130°F (54.4°C)
To Sand: 90 – 120 min. Bake Time: 20 min.
To Recoat: 18 hrs. (After 18 hours, sand with 320 grit
Physical Properties
- Weight per gallon:10.2 + 0.3 lbs./gal
- Weight Solids (%): 55.0 + 2.0
- Volume Solids (%): 36.0 + 2.0
- Coverage (@1mil, no loss):539-599 sq. ft./gal
Technical Data
- Gloss @ 60° Angle: ~20
- Pencil Hardness: HB – H
- Humidity Resistance: Excellent (topcoated)
- Salt Spray Resistance: Excellent (topcoated)
- Chemical Resistance: Good
- Conical Mandrel (1/8”): Pass
- Adhesion: 5B, Excellent
- Wet Film Thickness: 3-4 mils per coat
- Dry Film Thickness: 1.5-2 mils per coat
- Pot Life: 4 hours @ 77°F (25°C)
