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DCRYSTA / Professional Mixing Workspace

Paint Mixing Calculator Pro

Enter your product TDS ratio, then get ingredient quantities and cumulative cup or scale targets. Advanced workshop tools stay optional — no signup required.

FREE PROFESSIONAL TOOLNo signup · No subscriptionNeed a simpler mix? Open Paint Mixing Calculator ↗

PRECISION IN PRACTICEPROFESSIONAL REFINISH / MIX SHEET

TECHNICAL WORKSHEET / PRO

Paint Mixing RecipeMulti-Batch Mixing ChartWorkshop Mix Reference

Calculated from user-entered values · Confirm the product TDS/SDS before mixing.

JOB Not recorded MATERIAL SYSTEM Not recorded TDS REFERENCE Not recorded POT LIFE (FROM TDS) Not recorded

CREATED—

01 Mix configuration

Recipe / shop reference: —
Mix ratio: —
Reducer definition: —
Source target: —
Allowance: —
Cup capacity: —
Entered material densities (unverified): —

02 Calculated ingredient quantities

Material	Volume	Weight	Cumulative
Paint	—	—	—
Hardener	—	—	—
Reducer	—	—	—
Total theoretical mix	—	—	—

—

03 Cup / scale reference

—: —. Use the real instrument division; these are theoretical/rounded targets, not calibrated instructions.

Paint——

Hardener——

Reducer——

ACTIVATION / MIX START (fill in when mixed): __________________ · ACTUAL EXPIRES AT (from TDS): __________________

IMPORTANT: Not manufacturer approved. Mathematical estimates only; additive volumes may not equal measured mixed-liquid yield. Confirm the exact TDS/SDS for mixing order, compatibility, density, device limits and pot life. Unknown values remain unavailable.

Live total: —View breakdown

Mix Setup

Ratio and materials

Choose a common starting ratio, then check all parts against the product TDS. A third ratio part and additional percentage are different contributions; only combine them when your exact product TDS explicitly requires both.

Arithmetic examples only — not manufacturer recipes. “4:1 + 10%” does not establish what the 10% is based on. When using a percentage, select its basis explicitly from the exact product Technical Data Sheet (TDS).

Materials being mixed Ratio specified by Reducer treatment Paint parts Hardener parts

Use only the materials specified by your product TDS. Two-component Paint + Reducer is not the same chemistry as Paint + Hardener. Choosing a ratio does not prescribe or verify which products can be mixed.

Target and batch allowance

Target amount represents

Target measurement

Volume Weight

Target input unit Target amount Extra batch allowance (%) Mixing cup capacity (mL, optional)

Same-dimension unit changes preserve the physical amount. Switching between volume and weight requires you to enter the intended target and, for cross-unit calculations, actual material densities. US fluid units are US customary, not Imperial.

For planned batches, allowance increases all ingredients. For Paint already in a container, choose the locked mode to keep it exactly fixed (no overage).

Cup capacity uses theoretical summed component volumes; actual material behavior may differ. Never use schematic illustrations in place of a calibrated mixing container.

Optional material densities

Same-unit calculations do not require densities. Enter product-specific TDS values only for g ↔ mL conversion. Never assume 1 g/mL.

Paint density (g/mL) Hardener density (g/mL)

Ratio Finder · measured ingredientsOptional · infer ratio from measured portions

Different from calculating a recipe from known Paint. Enter independently measured ingredient quantities in the same unit, not the mixed total. Unmeasured materials remain unknown; measured Reducer cannot be separated into a third ratio part and an extra percentage.

Measurement unit Measured Paint Measured Hardener Measured total Reducer (optional) Integer-ratio tolerance (%)

Provide at least two independent component measurements.

Live Mix Recipe

Volume result display (theoretical values stay in mL internally)

PLANNED BATCH · INCLUDES ALLOWANCE IF SET —

Calculated values are theoretical estimates, not manufacturer dispensing instructions.

PaintHardenerReducer

Component	Volume (mL)	Weight (g)
Paint	—	—
Hardener	—	—
Reducer	—	—
Total	—	—

Swipe sideways to see both volume and weight columns.

Reducer components, separately calculated

Third ratio part: — / —

Additional percentage: — / —

Both contributions use the same Reducer material; the row above is their sum, not another addition.

Cumulative measuring points

These are cumulative stops in one container, not separate doses: after Paint, then Hardener, then Reducer. Follow the product TDS sequence.

After adding	Cumulative mL	Cumulative g
Paint	—	—
Hardener	—	—
Reducer	—	—

WORKSHOP GUIDANCE

Mixing Cup / Scale

Instrument division Cumulative rounding

Device stop targets are quantized separately from the theoretical recipe. Each executable addition is the difference between adjacent rounded cumulative stops. Use your instrument's real graduation; software cannot certify its accuracy.

This is a planned batch. Add every component as shown.

Illustration only — not calibrated.

CUMULATIVE mL —

Select a mode to view cumulative dispensing targets.

01
Add Paint
—
—
02
Add Hardener
—
—
03
Add Reducer
—
—

Cumulative readings assume Paint → Hardener → Reducer for illustration. Follow the actual product TDS mixing order. For a scale, tare the empty cup once; do not tare between additions.

Recipe specification

Recipe: Unnamed recipe
Generated: —
Ratio: —
Reducer: —
Starting target: —
Overage: —
Planned amount: —
Cup capacity: —
Entered material densities (not independently verified): —

Add verified densities to show cross-unit amounts.

Optional print identification · job, materials and TDS

Print reference (optional)

Identify the job and product containers on paper. These notes do not change calculations, are not TDS verification and are not included in the share QR.

Job / repair order reference Paint / hardener / reducer product codes Product TDS code / revision Usable pot life as written in TDS (no assumed value)

Optional · Save, reuse or export a formula

Save and reuse your recipe

Up to 20 recipes are stored in this browser only. They are not synced, backed up or available to DCRYSTA. Share a link to transfer settings to another device.

Recipe name

Find saved recipes

Previously saved

Local JSON recipe backup

Download or restore a versioned file only on this device. No cloud upload or server synchronization. Import validates every record before any change.

Choose local backup

ID conflicts

No file selected.

No account needed. Local browser storage may be cleared by your browser.

Important: Product TDS/SDS, mixing ratio specification, safe handling and pot life always take priority. Percentage basis must match the TDS; theoretical additive volumes are not a measurement guarantee.

OPTIONAL / ADVANCED WORKFLOWS

Only open what you need

Standard Pro mixing stays above. For repeat batches, actual-pour history, area estimating, material costs or label printing, expand only the relevant task. No extra setup is required for a one-off mix.

Multi-Batch Mixing Chart1–12 batch sizes · existing Pro math

Enter desired finished mix totals before any batch allowance; all values use the current ratio dimension (mL for volume ratios; g for weight ratios). Example amounts are not TDS prescriptions.

Finished totals (comma or semicolon separated, max 12)

Instrument stop targets follow the Cup/Scale mode and selected equipment division above; unavailable readings are never inferred.

Choose sizes and Generate chart.

Review your formula and selected equipment mode before using this chart.

Actual Poured / Deviation ReviewArithmetic only · no mix recovery approval

Record independent measured amounts, not a finished mixture total. Leave unknown quantities blank; blank does not mean zero. This is not a manufacturer tolerance or an instruction to repair an overpoured mix.

Enter amounts in the ratio's native dimension.

Actual Paint Actual Hardener Actual Reducer

No recorded measurements.

Optional batch record · local only

A saved record copies the current verified formula, independent actual measurements and differences. No automatic correction, usable-mixture approval or cloud synchronization. Do not enter personal details.

Batch reference (optional) Actual mix start (optional local time) Operator disposition (not safety clearance) Operator note (optional)

Nothing sent to DCRYSTA. Browser data may be cleared. Comparison is required before saving a batch record.

Batch Material CostYour prices · no rate database

Enter the price of each component for 1 L or 1 kg. Incomplete prices or missing densities produce an unavailable total, not a guessed cost.

Currency (no conversion) Price basis Paint per unit Hardener per unit Reducer per unit

Prices are optional and are not saved in shared recipes.

Surface Area / Quantity EstimatorUser-confirmed RTS coverage · planning only

Uses user-provided area and ready-to-spray (RTS) mix coverage, m²/L for one coat. The manufacturer may express coverage differently. No default bumper sizes, transfer efficiency, coverage or coat count are assumed.

Coated area (m²) Number of coats RTS coverage (m²/L/coat) Estimated loss / allowance (%)

I confirm my entered coverage applies to the ready-to-spray mixture per coat; I am not using an unmixed product's coverage specification.

Estimates depend on actual transfer losses and the product application instructions.

Measured Panels & Separate CoatsOptional advanced estimate · no vehicle-area assumptions

Use this only if you need a panel-by-panel estimate. Enter your own measured panel width/height in mm; actual curves, gaps and overspray make rectangles approximate. A blend fraction must be chosen from your real repair plan. No car model, panel area, transfer efficiency or coverage rate is presumed. Set each layer's own area fraction explicitly: Primer spot repair, Basecoat blend and full-panel Clearcoat may cover different extents. The layer fraction multiplies the panel-list area after each panel's coverage fraction; do not apply the same blend reduction twice.

Add measured vehicle panel (no built-in area)

Panel identification Measured bounding width (mm) Measured bounding height (mm) Fraction of that measured rectangle to coat (0–1)

No manufacturer panel dimensions are provided. Measure each area and adjust the fraction for actual blend work.

Measured panels (one line: panel name | width mm | height mm | coverage fraction 0–1)

Optional separate RTS layer estimates. Zero coats skips that layer.
Layer	Coats	Portion of measured area (0–1)	RTS m²/L per coat	Allowance %
Primer
Basecoat
Clearcoat

I checked panel measurements, coverage fractions and each active layer's ready-to-spray coverage per coat; these are my planning inputs, not OEM presets.

No measured panels or active layers submitted.

Layer to send to current Pro recipe

I independently confirmed the current Pro formula and its reducer basis apply to this exact selected layer. No layer formula is assumed.

Each layer requires its own product TDS and potentially a different ratio. Sending a layer switches only the current Pro target to its estimated finished mL; it does not choose or certify an appropriate paint system.

Compact Recipe CardPrintable shop reference · not TDS verified

Print a concise calculation reference for this batch. It does not establish material compatibility, mixing order or usable pot life.

Cup label is an independent small-format print sheet, not a scaled-down A4 report. Check your label printer's supported paper size and disable browser headers/footers.

Uses the current valid calculation.

QUICK POUR REFERENCE · USER-ENTERED FORMULA

—

Material	Quantity	Cumulative

MIX START: ______________ · TDS-BASED USE-BY: ______________

Not manufacturer approved. Cumulative values are mathematical checkpoints, not printed markings on a physical mixing cup. Verify material identity, instrument division, TDS/SDS and permitted pot life.

DCRYSTAWORKSHOP MIX · SHOP-ENTERED

Unprepared

—

JOB: —

MATERIAL: —

TDS: —

MIX START: ____________ TDS USE BY: ____________

Not manufacturer approved. Confirm exact product TDS/SDS before use.

Precision without unnecessary assumptions

A 4:1:1 volume ratio means four parts paint, one hardener and one reducer. A 4:1 mix with 10% reducer based on paint plus hardener is different. A product TDS may explicitly require both a 4:1:1 third part and a separate additional percentage; the calculator supports that combination without assuming it. For 400 mL paint, the first yields 600 mL total, and the second 550 mL. For 10% of the final mix, the formula is different again.

The calculator displays both mL and g only when each conversion is supported by an entered material density. Missing information is labeled Not available rather than silently replaced with an assumed density.

Designed for real mixing work

Specify a final batch or start from a known paint quantity (with zero allowance for paint already poured). Add a batch allowance, check whether the theoretical volume exceeds your mixing cup, then follow cumulative addition points when dispensing. Save frequently used recipes locally or share a versioned recipe URL.

For occasional calculations with a simpler interface, use the DCRYSTA Paint Mixing Calculator.

GUIDANCE / KNOW-HOW

Common Paint Mixing Questions · Pro

01Does 4:1:1 give the same result as 4:1 plus 10% reducer?

No. With 400 mL paint, a 4:1:1 volume ratio adds 100 mL hardener and 100 mL reducer. A 4:1 mix with 10% reducer based on paint plus hardener adds 50 mL reducer. Read the TDS before choosing a formula.

02Which reducer percentage basis should I choose?

Use the basis specified in the product TDS: paint, paint plus hardener, or finished mix. The tool does not infer a basis from +10%. A third ratio part and a separate additional percentage can both apply if the TDS states that.

03Can the ratio be by volume while my target is by weight?

Yes. The ratio and target are separate settings. Cross-unit calculations need the actual densities of the relevant components. Missing density information prevents the corresponding conversion.

04Why does the result say Not available for some units?

No default density is assumed for paint, hardener or reducer. Enter values for the actual materials to see both grams and mL, or work in the same measurement dimension as the stated formula.

05Are cumulative pour points exact marks for my scale or cup?

They are calculated checkpoints, not physical cup markings. Select your measuring-device increment and review rounding warnings. A theoretical decimal dose may not be achievable on a 1 g scale.

06What if I have already measured the paint?

Start from the known Paint amount, select its unit and set allowance to zero for material already poured. Review the calculated hardener and reducer before continuing; the tool cannot correct a wrong amount already in the cup.

07Do saved recipes or printed labels confirm pot life and compatibility?

No. Saved recipes remain in this browser unless exported or shared. Printed references and entered job details do not verify material compatibility, TDS revision, mixing sequence or usable pot life.