Carboline Carbomastic 19 AL


We no longer stock this product, but can recommend Caroline Carbomastic 15 LT as a great alternative.

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Carboline Carbomastic 19 AL is an aluminium-pigmented high solids mastic with excellent barrier and corrosion resistance. Carbomastic 19 AL is specifically designed for maintenance operations and has a high aluminium loading. Easy to apply with spray, brush and roller on top of existing coatings, rusted and St2/St3 cleaned steel.

Top Features & Benefits

  • Suitable as a topcoat for most tightly adhering existing coatings
  • Excellent choice for field touch-up of zinc-rich primers and galvanized steel
  • Unique formulation with aluminium flakes provides exceptional barrier protection
  • Contains 9 % aluminium by weight in the dry film
  • Can be used as a one-layer system
  • VOC compliant to current AIM regulations
  • Flat finish

Preparation & Application

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.

Immersion: Sa 2½

Non-immersion: Sa 2

Surface profile: 50-75 micron for maximum protection.

 St 2, St 3 or Sa 1 are also acceptable methods.

Previously Painted Surfaces
Lightly sand or abrade to roughen and degloss the surface. Existing paint must attain a minimum 3b rating in accordance with ASTM D3359 ”XScribe” adhesion test. Prime with specific primers as recommended by Carboline.

Galvanizing Aluminium
Galvanized aluminium (old): SSPC-SP1 and preferably blasting according to Sa 1. Galvanized aluminium (new): SSPC-SP1 and prime with specific Carboline primer as recommended by Carboline.

Mixing & Thinning
Power mix separately, then combine and power mix.

May be thinned up to 25% with Thinner 2. Use of thinners other than those supplied or recommended by Carboline may adversely affect product performance and void product warranty, whether expressed or implied.

Product Details

Data sheet


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.

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