Polyglass Coatings Caliber Low VOC Primer

Polyglass Coatings Caliber Low VOC Primer is a high solid, low VOC, epoxy zinc primer. It provides superior adhesion, cathodic corrosion protection and impact resistance.

Product Type: Epoxy Coating, Primer, Solventless & High Solids Coating

Application Area: Cranes, Drilling Applications, Marine Applications, Travel Trailers

Features: Corrosion Resistant, Good Adhesion, High Impact Resistance, Low VOC

Application Method: Spray

Chemical Family: Epoxy & Epoxy Derivatives

Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Product Features
  • Provides superior corrosion protection
  • Ability to fill a sandblast profile in one coat
  • Excellent impact resistance
  • No induction required
  • VOC Compliant

Applications & Uses

Application Method
Recommended Uses

Caliber Low VOC Primer is intended for industrial applications; either new build or maintenance. Caliber Low VOC Primer is suitable for application on properly sanded or sandblasted steel and for properly prepared galvanized or zinc coated substrates. This primer must be topcoated to achieve the best results.

  • Oilfield & Energy Services
  • Well Service vehicles
  • Drilling Rigs
  • Cranes and Construction Equipment
  • Waste and Recycling Industry
  • Garbage Trucks
  • Marine (above the water line)
Mix Ratio

5 parts by volume of component A and 1 part by volume of component B. The recommended temperature when mixed is 68-77°F (20-25°C).

Surface Preparation

Surface must be free of all contaminants such as dust, oil, grease and salt. It is recommended that all steel and other ferrous surfaces be sandblasted a minimum of SSPC- SP6 or mechanically sanded with 80 grit sandpaper. For optimal corrosion protection the surface should be sandblasted to SSPC-SP5 or SSPC-SP10 (White or Near White Blast).

Application Method

Caliber Low VOC Primer can be applied using most spray painting systems, although electrostatic sprayers are not recommended. Apply 1-2 coats as required to achieve the desired film thickness. Allow sufficient flash time between coats especially with higher film builds applied (20-30 minutes). Agitation is not required while spraying; the zinc is fully suspended in the coating.

Spray Gun Setup
Feed Type Fluid Tip Application Pressures (Heel of Gun) Fluid Delivery
Siphon Feed 1.6-1.8 mm 40 - 50 psi  
Gravity Feed 1.6-1.8 mm 30 - 40 psi  
Pressure Feed 1.4-1.8 mm 50 - 60 psi 12 - 16 oz/min
Air Assist Airless 13 - 15 Thou 1000 - 1800 psi  
Airless 13 - 15 Thou 1700 - 3000 psi  
Spray Viscosity

Polyglass Coatings Caliber Low VOC Primer - Spray Viscosity

Note: Spraying viscosity and thinning will depend on ambient conditions, spray equipment used, and the desired surface finish. If required, recommended spraying viscosity is achieved by reducing with one of the following Endura Low VOC Epoxy reducers. These will maintain VOC compliance of Caliber Low VOC Primer.

VOC content of the following Reducers:

[FTH0016] Low VOC Epoxy Reducer – Regular

[FTH0027] Low VOC Epoxy Reducer - Slow

Film Build

Caliber Primer has a recommended film build thickness of:

WFT (Unreduced) 5.5 - 9.0 mils

140 - 230 microns

DFT 3 - 5 mils

76 - 127 microns

The recommended dry film thickness is above the blast/sanding profile.

Theoretical coverage at 1.0 mil (25 microns) DFT: 883 ft² per gallon at 100% transfer efficiency. 

Dry Times
  20°C 30°C 40°C
Top Coat 3 Hours 2 - 3 Hours 1 - 2 Hours
Full Cure 7 - 9 Days 5 - 6 Days 3 - 4 Days

Note: Dry Times are subject to ambient conditions (temperature and humidity), good airflow and film build of primer. For best results surface temperature must be 86°F (30°C) or less before top coating. Maximum re-coat window without sanding is 3 Days at 68°F (20°C) Recommended Sanding 180 – 220 grit after the topcoat window has been exceeded. 

Top Coating Infomation

Caliber Low VOC Primer can be topcoated with the entire range of Endura topcoat products.

Clean Up

Clean all equipment immediately after use with Endura High Strength Gun Wash, Endura epoxy reducer or Endura EX-2C thinner.

Properties

Finish
Gloss
Typical Properties
ValueUnitsTest Method / Conditions
Volume Solids Mixed (5:1)53 - 57%
VOC Mixed (Unreduced)226.0g/lEPA Method 24
Specifications
ValueUnitsTest Method / Conditions
Solvent Resistance (100 MEK Rubs)No FailureASTM D4752
Impact Resistance (30 in. lbs)No FailureASTM D2794
Flexibility (1/4 in. Mandrel Bend)No FailureASTM D522
Service Temperature-40 to 121°C
Zinc Content (Dry Film)40.0%

Safety & Health

Environmental Conditions

For optimum coating performance, product, substrate and ambient temperature should be between 68°F-77°F (20°C-25°C). To prevent condensation during application the surface temperature must be 5°F (3°C) or more above the dew point at all times.

Packaging & Availability

Ordering Information (Sizing)

Available in Gallons and Pails Other Custom sizes may be available.

1 Mixed Gallon
Comp A - Gray FEA0061-035 3.15 L
Comp A - Black FEA0060-035 3.15 L
Comp B FEB0041-022 0.63 L

 

5 Mixed Gallon
Comp A - Gray FEA0061-055 15.75 L
Comp A - Black FEA0060-055 15.75 L
Comp B FEB0041-035 3.15 L

 

Storage & Handling

Pot Life (25°C, 50% RH)
10 Hours
Shelf Life
3 Years (Component A, 25°C), 2 Years (Component B, 25°C)