Ever stared at a wall clock, tabletop, tray or coaster and thought, “How much resin do I even need for this?” Whether you’re dreaming of a sleek resin river table, an Instagram-worthy wall clock, or a glossy coaster, one thing is clear—getting the resin quantity right is key. Guessing isn’t an option when working on resin projects, because too little resin can leave your piece incomplete, and too much is just wasted money. So, let’s break it down: here’s a foolproof way to plan your resin needs like a pro with a resin calculator!
Before You Begin
Before using the calculator, have a clear mind and measure your project accurately. Determine the length, breadth, and width (for rectangle/square shapes) or diameter (for circular shapes) in inches. Ensure you know the thickness required, usually measured in millimetres (mm), to get precise results.
How to Use the Tulsi Resin Calculator
Tulsi Resin’s online Resin Calculator makes planning a breeze. No formulas, no hassle, just precise results tailored to your project’s needs. Whether it’s coating a flat surface or casting intricate moulds, this tool has you covered.
Step 1: Select Your Project’s Shape

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Start by choosing the shape of your project—Rectangle/Square or Circle. This will determine the way you measure dimensions and calculate the resin required.
Step 2: What Are You Planning to Do with Tulsi Resin and Hardener?
This step requires you to identify your project type—coating or casting:
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Coating: Coating is used for thin layers applied to flat surfaces like tabletops, artwork, or photographs. It creates a glossy, protective finish. The coating is ideal for projects where the resin needs to spread evenly without filling a significant depth. For example, a tabletop or canvas requiring a thickness of 1-2 mm would fall undercoating.
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Casting: Casting involves pouring resin into silicone moulds or cavities to create shapes or fill spaces. This is used for deep-pour projects like river tables, jewellery moulds, or intricate figurines. Casting requires more resin to occupy the volume and ensures even filling of spaces without air gaps.

Step 3: Choose the Ratio of Your Resin and Hardener
The hardener ratio depends on your project’s curing needs:
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2:1 Ratio:

- Fast-curing, thick consistency for preventing drips.
- Touch dry in 3-5 hours, fully cured in 6-8 hours.
- Best for ocean waves, jewelry moulds, MDF, wood, and geode art.
- Provides high gloss with crystal-clear transparency.
- Suitable for casting up to 6” mould size.
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3:1 Ratio:

- Longer curing with a thin consistency for smooth layering.
- Touch dry in 8-12 hours, fully cured in 24-36 hours.
- Ideal for deep casting, silicone moulds, and top coats.
- Capable of 8-10mm single-layer pours and 60mm deep pours in 6-8 layers.
- Provides a non-yellowing, moisture-free, and hard cure finish.
Step 4: Measure Your Project Dimensions

Now as per your requirement for coating or casting projects, ensure accurate measurements of the length, width, and depth (for casting) or thickness (for coating). Enter these dimensions into the calculator to get precise resin requirements tailored to your project.
Step 5: Get Your Results

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The calculator provides:
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Total Resin Required in grams or kilograms.
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Resin to Hardener Breakdown.
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Estimated Cost for your project.
This detailed breakdown ensures you have everything you need to start your resin project without over-purchasing or running out midway.
Tips for Calculating Resin for Irregular Shapes

For projects involving irregular shapes, such as alphabetical moulds or abstract designs, calculating resin requirements can be tricky. Here are some tips:
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Estimate the Volume: Approximate the volume of the irregular shape by comparing it to a standard geometric shape. For example, an alphabetical mould may use 20% less resin than a rectangular mould of similar dimensions.
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Account for Reduced Usage: Intricate moulds with thinner sections, like letters or detailed designs, will naturally use less resin. Adjust your calculations accordingly.
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Test with Water: If unsure, fill the mould with water, measure the volume, and use this as a baseline for your resin requirement.
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Use the Tulsi Resin Calculator: While the calculator doesn’t have an irregular shape option, you can input comparable dimensions (like a rectangle/square or circle) and adjust the results manually.
Final Tips for Accurate Resin Usage

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Always prepare 10-15% extra resin for uneven shapes or porous materials like wood.
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Maintain workspace temperature at 25°C (77°F) and humidity below 50% to avoid curing issues.
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Use the Tulsi Resin Calculator for accurate and hassle-free planning.
Conclusion: Plan Smart, Pour Perfectly
Large resin artworks are both exciting and challenging. With the Tulsi Resin Calculator and these expert insights, you’re set to create stunning masterpieces without the stress of miscalculations. Tulsi Resin provides top-quality materials and the tools and guidance to make your resin projects flawless.
Ready to start your next project? Explore Tulsi Resin’s premium resin supplies today and pour your creativity into life!
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