When designing the formulation for our 5310/5212/5313 primer we looked at what was available on the market and and what people in the refinish industry wanted. We came up with a primer that is completely unique in the industry. 

Direct to Metal (DTM) Primer

HP-5300 Series Premium 2K DTM Primer-Surfacer with exceptionally high build and direct-to-metal properties. Very soft sanding, wet or dry after short dry times. HP-5300 Series Primer provides no shrinkage and the maximum in color holdout properties available.

Mix Ratio:

HP-5300 Series Premium 2k DTM Primer         4

HH-3100 Activator                                           1

Reduction of up to 10-15% with Tamco Universal Urethane reducers (HR-Series)

OPTIONAL MIX 4:1:1 as a SEALER (4 parts primer 1 part HH3100, 1 part HR reducer)

Pot Life.     1 hour at 70° F

Gun Setups:

Conventional

Siphon Feed: 1.6 mm – 2.0 mm (0.063” – 0.079”)

Gravity Feed: 1.6 mm – 2.0 mm (0.063” – 0.079”)

HVLP

Siphon Feed: 1.6 mm – 2.0 mm (0.063” – 0.079”)

Gravity Feed: 1.6 mm – 2.0 mm (0.063” – 0.079”)

Air Pressures

Conventional

Siphon Feed: 35-45 psi at the gun

Gravity Feed: 30-40 psi at the gun

HVLP 8-10 psi at the gun

Application:

1. Clean surface thoroughly using accepted body shop procedures.
   
2. Sand per accepted body shop procedures for substrate being used and final clean with solvent wipe.
   
3. Apply 2-3 medium coats of HP-5310 with 10-15 minutes flash between coats.
   

Do not apply more primer after 1 hour from completion.

Flash/Dry Times (Air Dry):

Flash Between Coats: 10-15 minutes

Wet Sanding: 1 hour

Dry Sanding: 1 hour

Technical Data & Physical Properties:

Color Grey Sprayable Viscosity 26-33 sec. #2Z

Pot Life 1 hour Mix Ratio 4:1

Weight Solids 66% Volume Solids 50%

Weight per Gallon 11.7 lbs Color Holdout Excellent

Flash Point 22° C Solvent Resistance Excellent

Package VOC 3.49 lbs/gal RTS VOC 3.20 lbs/gal