National Supply Company 777 DTM 2K Primer Urethane Primer Instructions
- August 31, 2024
- National Supply Company
Table of Contents
777 DTM 2K Primer Urethane Primer
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Specifications
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Product Name: 777 DTM 2K Primer
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Components: DTM Primer Filler/Surfacer/Sealer, Medium Hardener,
Fast Hardener, LAUCO Reducer -
Mixing Ratio: Primer Surfacer – 4:1:1 (by volume)
Product Usage Instructions
1. Surface Preparation
Ensure the surface is clean, dry, and free of any contaminants
before application.
2. Substrates
The primer can be applied to various substrates including metal,
aluminum, and fiberglass. Ensure proper surface preparation based
on the substrate.
3. Gun Set Up
Conventional Gun:
- Primer Nozzle: 1.5-1.9 mm
- Filler/Surfacer Nozzle: 1.3-1.5 mm
- Air Cap: 1.5-1.9 mm
- Inlet Air Pressure: 30-45 psi (2.0-3.1
bar)
HVLP Gun:
- Primer Nozzle: 1.5-1.9 mm
- Filler/Surfacer Nozzle: 1.3-1.5 mm
- Air Cap: 1.5-1.9 mm
- Inlet Air Pressure: 20-30 psi (1.5-2.0
bar)
Note: Refer to the spray gun manufacturer’s information for
specific details.
4. Application
Apply the primer filler/surfacer/sealer using the recommended
mixing ratio of 4:1:1 (by volume). Ensure thorough mixing before
application.
5. Flash/Dry Times
Refer to the provided table for flash and dry times based on the
specific application (filler, surfacer, sealer) and environmental
conditions.
6. Clean Up
Clean up equipment using appropriate solvents based on the
product used.
FAQ
Q: Can this primer be applied directly to bare metal?
A: Yes, this primer is formulated for direct application to
metal surfaces after proper surface preparation.
Q: How long should I wait before applying a topcoat?
A: The recommended wait times are provided in the flash/dry
times table based on the specific application.
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ALL IN ONE
777 DTM 2K PRIMER
GENERAL INFORMATION
777 All in One Direct to Metal Primer Filler/surfacer/sealer is formulated to
provide the ultimate in performance, productivity, versatility, adhesion,
durability,
moisture and corrosion resistance, and superior sanding and sealing
characteristics.
1. COMPONENTS
· 777
DTM Primer Filler/Surfacer/Sealer
· 772
Medium Hardener
· 773
Fast Hardener
LAUCO Reducer
2. MIXING RATIO
PRIMER FILLER – 4:1 (by volume) · Mix four (4) parts 777 ALL IN ONE (1) part
772 Medium or 773 Fast Hardener.
PRIMER SURFACER – 4:1:1 (by volume) · Mix four (4) parts 777 ALL IN ONE (1)
part 772 Medium or 773 Fast Hardener and reduced with one (1) part reducers.
PRIMER SEALER – 4:1:2 (by volume) · Mix four (4) parts 777 ALL IN ONE (1) part
772 Medium or 773 Fast Hardener and reduced with two (2) parts reducers.
7. APPLICATION
PRIMER FILLER – 4:1 (by volume) · Spray one (1) to three (3) medium wet coats
· Allow 10-15 minutes between or until surface has dulled to a matte
finish · Recommended Dry Film Thickness 1.0-4.0 mils (25-100 µm)
PRIMER SURFACER – 4:1:1 (by volume)
· Spray one (1) to three (3) medium wet coats · Allow 10-15 minutes between or
until surface has dulled to a matte
finish · Recommended Dry Film Thickness 1.0-4.0 mils (25-100 µm)
PRIMER SEALER – 4:1:2 (by volume) · Spray one (1) medium coat · Recommended
Dry Film Thickness 0.6-1.0 mils (15-25 µm)
NOTE: · Surface temperature should be 50-100°F (10-38°C) with less than 80%
humidity preferred · If sealer is allowed to dry more than 12 hours before
topcoating, sealer
must be re-sanded
8. FLASH / DRY TIMES
3. POT LIFE @ 77°F (25°C)
· 45-60 Minutes
4. CLEAN UP
· Use a quality reducer (check local regulations)
AIR DRY @ 68°F (20°C)
Flash Time To Sand
FILLER 5-10 Minutes 90-120 Minutes
To Topcoat
30 Minutes
To Topcoat Without Sanding N/A
SURFACER 5-10 Minutes 90-120 Minutes
30 Minutes N/A
SEALER
5-10 Minutes 20 Minutes (Non Sanding) 20-30 Minutes 8 Hours Max
5. SURFACE PREPARATION
· Wipe surface and wipe dry with clean cloth before product flashes.
· Sand and featheredge substrate with P320 grit sandpaper or equivalent ·
Clean surface and wipe dry with clean cloth before product flashes.
6. SUBSTRATES
· Properly cleaned and sanded aluminum, steel, galvanized steel or sand
blasted steel
· Properly cleaned and sanded fiberglass. NOTE: Do not apply over Self Etching
Primers
9. GUN SET UP
CONVENTIONAL GUN
PRIMER
FILLER / SURFACER
PRIMER SEALER
Nozzle
1.5-1.9 mm
1.3-1.5 mm
Air Cap
1.5-1.9 mm
1.3-1.5 mm
Inlet Air Pressure
30-45 psi (2.0-3.1 bar)
30-45 psi (2.0-3.1 bar)
HVLP Nozzle
PRIMER
FILLER / SURFACER
PRIMER SEALER
1.5-1.9 mm
1.3-1.5 mm
Air Cap
1.5-1.9 mm
1.3-1.5 mm
Inlet Air Pressure
20-30 psi (1.5-2.0 bar)
25-35 psi (1.7-2.5 bar)
See spray gun manufacturer info