Carboline Carbocoat 150 Universal Primer


Carboline Carbocoat 150 Universal Primer is a heavy-duty primer formulated to provide long term protection of structural steel. It provides excellent adhesion and can be welded through to yield sound welds.

VAT excluded

£271.80 Tax incl.


Carboline Carbocoat 150 Universal Primer is a heavy-duty primer formulated to provide long term protection of structural steel. It provides excellent adhesion and can be welded through to yield sound welds.

Click To Jump To Section:

Features & Benefits

  • Good for extended exposure demands
  • Ability to be welded through
  • Heavy-metal free

Product Specification

Technical Data
Carboline Carbocoat 150 Universal Primer
Volume Solids: 52% +/- 2%
Dry Temperature Resistance: Continuous: 200°F (93°C)
Non-Continuous: 250°F (121°C)
Theoretrical Coverage Rate: 834 ft²/gal at 1.0 mils (20.5 m²/l at 25 microns)
417 ft²/gal at 2.0 mils (10.2 m²/l at 50 microns)
278 ft²/gal at 3.0 mils (6.8 m²/l at 75 microns)
Dry Film Thickness: 2 - 3 mils (51 - 76 microns) per coat
Don't exceed 3.0 mils (75 microns) in a single coat. Welding is best achieved when thicknesses do not exceed 1 mil (25 microns).
Topcoats: May also be topcoated with catalyzed epoxies and urethanes
Shelf Life: 24 months
Storage: Store indoors
Storage Temp & Humidity: 35° - 100°F (2°- 43°C), 0-100% Relative Humidity

Drying Times

Curing Schedule
Surface Temperature Dry To Touch Tack Free Dry to Topcoat w/ itself or other alkyds Dry to Topcoat w/ epoxies or urethanes
35°F (2°C) 60 Minutes 4 Hours 12 Hours 16 Hours
55°F (13°C) 35 Minutes 90 Minutes 5 Hours 12 Hours
75°F (24°C) 10 Minutes 45 Minutes 2 Hours 8 Hours

  • These times are based on a 2.0 mil (50 microns) dry film thickness. Higher film thickness, insufficient ventilation, high humidity or cooler temperatures will require longer cure times and could result in solvent entrapment or premature failure.
  • Recoat intervals may vary from those listed above when using under intumescent fireproofing products.
  • Please contact Rawlins on Tech - 0113 2455450 (option 2) or [email protected] Sales - 0113 2455450 or [email protected] for recommended cure times before applying Carboline intumescent products.

Surface Preparation


  • Surfaces must be clean and dry. Employ adequate methods to remove dirt, dust, oil and all other contaminants that could interfere with adhesion of the coating.


  • SSPC-SP6 with a 1.0-2.0 mil (25-50 micron) surface profile for maximum protection. SSPC-SP2 or SP3 as minimum requirement.
  • When using under fireproofing products, defer to the primer surface preparation requirements in the product data sheet of the fireproofing product.

Application Methods

Product Information
Mixing: Power mix until uniform in consistency
Thinning: Normally not required but may thin as follows: Spray, brush or roller may be thinned up to 6 oz/gal (5%) with Thinner #10.
Use of thinners other than those supplied or recommended by Carboline may adversely affect product performance and void product warranty, whether expressed or implied.
Conventional Spray: Pressure pot equipped with dual regulators, 3/8” I.D. minimum material hose, 0.052” fluid tip and appropriate air cap.
Airless Spray: Pump Ratio: 30:1 (minimum)
GPM Output: 3.0 (minimum)
Material Hose: 3/8” I.D. (minimum)
Tip Size: 0.013” - 0.017”
Output PSI: 2000-2300
Filter Size: 60 mesh
Brush & Roller (General): Multiple coats may be required to achieve desired appearance, hiding and recommended dry film thickness.
Avoid excessive re-brushing or re-rolling
Brush: Use a natural bristle brush
Roller: Use a short-nap synthetic roller cover with phenolic core

Application Conditions

Product Application Conditions
Condition Material Surface Ambient Humidity
Minimum 35°F (2°C) 35°F (2°C) 35°F (2°C) 0%
Maximum 120°F (49°C) 120°F (49°C) 120°F (49°C) 90%

  • This product simply requires the substrate temperature to be above the dew point
  • Condensation due to substrate temperatures below the dew point can cause flash rusting on prepared steel and interfere with proper adhesion to the substrate.
  • Special application techniques may be required above or below normal applicaton conditions.

Health & Safety

  • Refer to the safety data sheet in the attachments section above and tin label prior to use.

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Product Details

Data sheet

For Use On
Application Method
Brush, Roller, Spray
Standard / Ready Mixed
Single, Two or Three Pack
Pack Size
UN Number

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

Be the first to ask a question about this product!

Question about the product

* Required fields
You might also like