1. What is the Sandtex Paint Calculator?

The Sandtex Exterior Paint Calculator estimates the amount of paint needed based on the area to be covered and the paint's coverage rate. It helps ensure you purchase the right amount of paint for your project.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( Area \) — Surface area to be painted in square meters
• \( Coverage \) — Paint coverage rate (typically 16 m² per litre for Sandtex exterior paint)

Explanation: The calculation divides the total area by the paint's coverage rate to determine how many litres of paint are required.

3. Importance of Accurate Paint Calculation

Details: Proper paint estimation prevents over-purchasing (saving money) or under-purchasing (preventing color mismatch from multiple batches). It's especially important for exterior paints like Sandtex that require consistent application.

4. Using the Calculator

Tips: Measure your surface area accurately in square meters. The default coverage rate is 16 m²/litre for Sandtex exterior paint, but you can adjust this if using a different product or if surface texture affects coverage.

5. Frequently Asked Questions (FAQ)

Q1: Why is 16 m²/litre the default coverage rate?
A: This is the standard coverage rate for Sandtex exterior masonry paint under normal application conditions.

Q2: Should I buy extra paint?
A: It's recommended to purchase 10-15% extra paint to account for surface texture, application method, and touch-ups.

Q3: Does surface texture affect coverage?
A: Yes, rough surfaces may require up to 20% more paint than smooth surfaces for full coverage.

Q4: How do I calculate area for complex surfaces?
A: Break the surface into simple shapes (rectangles, triangles), calculate each area separately, then sum them.

Q5: Does this calculator work for interior paint?
A: While the calculation method is similar, interior paints often have different coverage rates - check the product specifications.