Terrazzo Chips Ratio Calculator
Calculate mix splits for terrazzo stone chips, glass, and acrylic flakes with Jesmonite, concrete, or epoxy base composites by weight or volume. Adjust the parameters in the interactive workbench below to get immediate recipe card outputs.
Terrazzo Chips & Base Ratio Calculator
Chips Ratio EngineMEASUREMENT OUTPUTS
Terrazzo Batch Summary
Terrazzo batch for Jesmonite AC100: 330.0g total target weight (190ml volume). Contains 99.0g terrazzo chips (30%) and 231.0g base matrix (165.0g Jesmonite AC100 Polvo + 66.0g Líquido Acrílico).
MakerRatio • Studio Workshop Batch Sheet
https://makerratio.com • Precision Craft Formula Record
Date: _______________
Batch #: ____________
Project: Terrazzo (Jesmonite AC100)
Category: Terrazzo & Mineral Composite
Dimensions: 190 ml
Mix Ratio: 2.5:1
Specific Gravity: 1.75 g/ml
Safety Spill Margin: 10%
Batch Mix Breakdown (By Exact Weight)
Workshop Safety & Quality Protocol:
[ ] Ambient room temp 70°F–78°F (21°C–25°C) & mold leveled.
[ ] Protective nitrile gloves on & workspace ventilation active.
[ ] Mix thoroughly scraping sides and bottom for 3 full minutes.
[ ] Verify pot life and demold window per manufacturer TDS.
Curing Schedule Log:
Pour Time: ___________
Gel / Tack-Free: ______
Demold Time: ________
Recommended Materials & Tools for this Project
Pre-Crushed Mineral Terrazzo Color Chips
Specification: Sifted lightweight mineral terrazzo flakes for embedding into Jesmonite AC100 and casting resin matrices.
Jesmonite AC100 Composite Base & Liquid
Formula: Official 2.5:1 base powder to acrylic liquid ratio. Water-based, solvent-free composite for coasters, trays, and vessels.
Transparency Notice: As an Amazon Associate, MakerRatio earns from qualifying purchases at zero extra cost to you. Product recommendations are selected based on verified Manufacturer Technical Data Sheets (TDS). Always consult chemical safety data before pouring.
Embed This Calculator on Your Blog or Shop Website
Allow your readers or craft customers to calculate exact material ratios directly on your website. Free, responsive, and easy to copy.
<iframe src="https://makerratio.com/resin/terrazzo-chips-calculator/" width="100%" height="650" frameborder="0" style="border-radius:16px; border:1px solid #1e293b;" title="Terrazzo Chips Ratio Calculator"></iframe><p style="font-size:12px; text-align:center; margin-top:8px;">Powered by <a href="https://makerratio.com/resin/terrazzo-chips-calculator/" target="_blank" rel="noopener">MakerRatio Craft Calculators</a></p>Calculation Logic & Engineering Formula
To calculate the exact volume and weight splits for this craft project, the workbench executes the following geometric equations:
Terrazzo Aggregate Proportions & Sizing Matrix
Composite Ratio StandardBase material and chip weight splits across standard craft decor molds for Jesmonite, acrylic composites, and epoxy terrazzo.
| Terrazzo Project Style | Total Mold Capacity | 70/30 Standard Ratio (Base / Chips) | 60/40 Dense Terrazzo (Base / Chips) | 80/20 Minimalist Flecks | Recommended Chip Size |
|---|---|---|---|---|---|
| Round Coaster (10 cm × 1 cm) | 140.0 g (Jesmonite AC100) | 98.0g Base / 42.0g Chips | 84.0g Base / 56.0g Chips | 112.0g Base / 28.0g Chips | Small (2mm – 4mm) |
| Set of 4 Terrazzo Coasters | 560.0 g | 392.0g Base / 168.0g Chips | 336.0g Base / 224.0g Chips | 448.0g Base / 112.0g Chips | Small (2mm – 4mm) |
| Oval Trinket Tray (18 × 9.5 cm) | 260.0 g | 182.0g Base / 78.0g Chips | 156.0g Base / 104.0g Chips | 208.0g Base / 52.0g Chips | Mixed (2mm – 8mm) |
| Round Serving Tray (20 cm Dia) | 520.0 g | 364.0g Base / 156.0g Chips | 312.0g Base / 208.0g Chips | 416.0g Base / 104.0g Chips | Medium (4mm – 8mm) |
| Hexagon Serving Board (25 cm) | 780.0 g | 546.0g Base / 234.0g Chips | 468.0g Base / 312.0g Chips | 624.0g Base / 156.0g Chips | Large Chunky (6mm – 12mm) |
| Plant Pot / Vessel (12 × 10 cm) | 850.0 g | 595.0g Base / 255.0g Chips | 510.0g Base / 340.0g Chips | 680.0g Base / 170.0g Chips | Medium (4mm – 8mm) |
| Terrazzo Table Top (40 × 60 cm) | 4,200.0 g (4.20 kg) | 2.94kg Base / 1.26kg Chips | 2.52kg Base / 1.68kg Chips | 3.36kg Base / 0.84kg Chips | Chunky Mosaic (8mm – 15mm) |
In-Depth Crafting Guide & Density Analysis
Terrazzo casting is the artisanal process of embedding vibrant colored mineral chips or cured acrylic flakes into a solid composite matrix (such as Jesmonite AC100, epoxy resin, or craft concrete). Achieving the exact ratio between base slurry and aggregate chips determines mechanical durability and visual surface density.
This terrazzo calculator computes custom aggregate ratios (70/30, 60/40, or 80/20), determines exact chip weight requirements, and provides precise powder/liquid splits for Jesmonite and 2-part polymer bases.
Frequently Asked Questions (Terrazzo Chips Ratio Calculator)
What is the standard ratio of base material to terrazzo chips?
The industry standard ratio is 70% Base Material to 30% Terrazzo Chips by weight (70/30 ratio). For dense mosaic designs, makers use a 60/40 ratio, whereas subtle fleck designs use an 80/20 ratio.
How do you prevent terrazzo chips from sinking to the bottom of the mold?
Because mineral chips have similar density to liquid Jesmonite or thickened epoxy, stir chips thoroughly and wait 2 to 3 minutes until the base mixture reaches a honey-like slurry before pouring.
How much sanding is required to reveal embedded terrazzo chips?
Demold the casting after 2 hours (Jesmonite) or 24 hours (Resin). Wet sand the top surface using 80-grit to 120-grit wet/dry sandpaper with water until the sharp edges of the chips are exposed, then polish with 240-grit, 400-grit, and 800-grit paper.
How do you make DIY terrazzo chips from scratch?
Pour a thin 1mm layer of colored Jesmonite AC100 or tinted epoxy onto a flat silicone baking mat. Once cured (20 mins for Jesmonite), break the sheet by hand into varied 2mm to 8mm shards.
How much base and chip material is needed for an oval trinket tray (260g total)?
At a 70/30 standard ratio, weigh 182.0 grams of liquid base slurry (for Jesmonite AC100: 130.0g base powder + 52.0g acrylic liquid) and add 78.0 grams of pre-made colored chips.
Other Calculators in the RESIN Suite
Explore other specialized volume, density, and cost estimators built for makers: