Jotun Paint Calculator

Jotun is a global leader in protective and decorative coatings, known for premium products like Fenomastic (Interior) and Jotashield (Exterior). Unlike generic paint, quality coatings have specific “Spreading Rates” and coverage properties. Under-estimating leaves you with a patchy wall; over-estimating leaves you with expensive, expiring cans in the garage.

The Jotun Paint Calculator is calibrated to help homeowners and contractors estimate the exact volume (Liters/Gallons) needed for a flawless finish, accounting for multiple coats, surface porosity, and specific product lines.

Estimate Like a Pro

Follow these steps to generate a shopping list for your nearest Jotun Multicolor Centre:

1. Surface Area

Calculate the total wall area ().

• Subtract Openings: Do not forget to subtract doors () and windows (). Painting air is a waste of money!

2. Select Product Type

Different paints have different spreading rates (“Coverage”):

• Fenomastic (Emulsion): High coverage (~10-12 ).
• Lady Design (Texture): Lower coverage (~3-6 ) due to thick application.
• Jotashield (Exterior): Medium coverage (~8-10 ), depends on stucco roughness.

3. Number of Coats

• Standard Refinish: 2 Coats are recommended for true color fidelity.
• Color Change: If going from dark blue to white, plan for 3 Coats or a high-hiding primer.

Variables That Affect Coverage

Surface Porosity

New, unpainted drywall or fresh plaster is a sponge. It will drink the first coat. Always use a PVA Primer first to seal the surface. This calculator assumes a sealed/primed surface. If painting directly on raw plaster, increase your quantity by 20%.

Texture

Smooth walls are easy. Textured walls (popcorn, stucco, knock-down) have much more actual surface area than length x height suggests. They can require 30-50% more paint to fill the crevices.

Application Method

• Roller: Standard coverage.
• Spray: Faster, but high waste due to overspray. Add 10%.
• Brush: High coverage, but labor-intensive.

Product Specific Tips

Fenomastic Wonderwall

A luxurious silk finish. Because it reflects light, surface imperfections show up easily. Ensure your wall preparation (sanding/putty) is perfect before applying.

Jotashield Extreme

Designed for harsh heat. It reflects heat to keep interiors cooler. Apply strictly according to mil-thickness specs to ensure the heat-reflective warranty holds.

Frequently Asked Questions (FAQ)

How big is a “Gallon” in Jotun?

Jotun typically uses 3.64 Liters (US Gallon) or 4 Liters sizes depending on the region (Middle East vs. Europe). Always check the can label. This calculator converts to both Liters and Gallons.

Does the calculator include Primer?

No. This calculates the topcoat. You generally need 1 coat of “Fenomastic Primer” or “Jotashield Alkali Resistant Primer” for every project. This is usually half the volume of the topcoat.

What if I buy too much?

Custom-mixed colors cannot be returned! It is safer to buy slightly less and pick up an extra quart later than to be stuck with 5 gallons of “Sunset Peach” you cannot use.

Final Words

Painting transforms a space, but math makes it happen. With the Jotun Paint Calculator, you can walk into the store with confidence, knowing exactly what you need to bring your vision to life.