How the 20 reviewed documents describe measurement
Document-level coding, including unresolved fields.- Volume12
- Volume + weight info6
- Weight1
- Not established1
The “both” group includes D880’s weight-target table, whose mass units and cumulative/individual convention remain unspecified. These counts describe our sample, not the industry.
Explore the 20 source documents →Start with four questions
What does the ratio need to tell you?
A mixing ratio is a relationship between named components. To use it, you also need the measurement basis, the right product pairing, and the meaning of any extra percentage.
We reviewed manufacturer technical sheets to make these distinctions easier to see. The guide explains the maths; the original sheet remains the source for your product.
Volume is not weight
Which measurement basis does the sheet specify?
Volume measures the space a liquid occupies. Weight measures its mass. Different components can have different densities, so a volume ratio cannot simply be relabelled in grams.
One sheet, two different instructions
The reviewed Cromax 901R/907R sheet lists these separate ratios for its standard non-sanding configuration:
These are two manufacturer-specified bases for this documented configuration. They are not a general conversion rule.
Cromax 901R/907R technical sheet, page 2Match the exact pairing
Does the hardener change the instruction?
The product name alone may not determine the ratio. Some sheets give different recipes for different hardener systems or application modes. Keep those configurations together with their labels.
Mipa EF42: the hardener changes the ratio
Document example from the reviewed EF42 edition. Select the exact manufacturer pairing, not a ratio remembered from a similar product.
Mipa EF42 technical sheet, page 1Regional editions also matter. A UK-linked PPG sheet we reviewed used a different recipe from the archival regional lead found during research. Keep the market and printed edition beside every source.
A percentage needs a basis
Ten percent of what?
“Add 10% reducer” is incomplete for calculation until the instructions establish the reference quantity. Ten percent of the base and ten percent of base plus hardener are different amounts.
A small change in the wording changes the amount.
Illustrative maths: 400 mL base + 100 mL hardener.
A comparison of two explicitly chosen assumptions, not a product recipe. Use neither assumption unless the exact instructions support it.
In nine of our 20 sampled documents, thinner percentages appear but their reference quantity was not established in the reviewed sheets. That describes our document review; additional manufacturer guidance may exist.
If the basis is unresolved, leave the calculation unresolved. A precise-looking result cannot supply missing product instructions.
Read weight tables carefully
Are these scale targets or individual amounts?
Some manufacturer weight tables give a running scale target after each component. A cumulative target is a total reading, so you need to distinguish it from the amount of an individual ingredient.
Read the target. Understand the addition.
Illustrative cumulative targets, in grams:
Arithmetic demonstration only. The manufacturer’s instructions determine whether readings are cumulative and when the scale is tared.
Two documents in the main sample explicitly provide cumulative gram-target instructions. Another supplies a weight-target table without explicit mass units or cumulative/individual wording; we preserve that uncertainty.
Weight-ratio columns are a separate kind of information. A ratio such as 100:73 is not itself a table of cumulative batch targets.
Follow the evidence
Explore the reviewed manufacturer documents.
Explore the 20 documents in the main sample. The review notes explain what was established, what remains unresolved, and where the original instructions can be read.
PPG · PrimerDP3500 PrimerVolume + weight informationPrinted editionJuly 2023
Volume recipes and cumulative gram targets are supplied. Match the application configuration.
- Product code
- D8551 / D8555 / D8557
- Source scope
- United Kingdom English (en-GB), as linked by UK manufacturer catalogue or UK-specific archival URL
- Reviewed document
- 7 pages · accessed 10 November 2026
PPG · ClearcoatGRS Deltron D800 ClearVolumePrinted editionMay 2012
Volume recipe supplied. External weight-formula references are not an in-document gram table.
- Product code
- D800
- Source scope
- United Kingdom English (en-GB), as linked by UK manufacturer catalogue or UK-specific archival URL
- Reviewed document
- 7 pages · accessed 10 November 2026
PPG · ClearcoatGRS Deltron D880 High Solids ClearVolume + weight informationPrinted editionJune 2016
Volume recipe and a weight-target table. The table does not explicitly establish mass units or cumulative versus individual readings.
- Product code
- D880
- Source scope
- United Kingdom English (en-GB), as linked by UK manufacturer catalogue or UK-specific archival URL
- Reviewed document
- 6 pages · accessed 10 November 2026
PPG · 2K topcoatDeltron Progress UHS DGVolume + weight informationPrinted editionJuly 2014
Volume recipe and explicit cumulative gram targets. The selected UK-linked edition differs from the archival regional lead.
- Product code
- D60xx
- Source scope
- United Kingdom English (en-GB), as linked by UK manufacturer catalogue or UK-specific archival URL
- Reviewed document
- 5 pages · accessed 10 November 2026
PPG · 2K topcoatGRS Deltron DG Direct Gloss 2-Pack Acrylic ColourVolumePrinted editionMay 2006
Volume recipe supplied. Referenced external weight guidance was not treated as an in-document table.
- Product code
- D7xx
- Source scope
- United Kingdom English (en-GB), as linked by UK manufacturer catalogue or UK-specific archival URL
- Reviewed document
- 8 pages · accessed 10 November 2026
Axalta · PrimerVOC Epoxy Primer-SurfacerVolume + weight informationPrinted editionEN 840R - 34 | 08.07.2026
Volume and weight columns are separate. Activator configurations vary; a cross-table thinner-code discrepancy remains recorded.
- Product code
- 840R
- Source scope
- UK official product listing; English GB-request TDS served as EN edition
- Reviewed document
- 7 pages · accessed 10 November 2026
Axalta · Primer2K Plastic Primer-SurfacerVolume + weight informationPrinted editionEN 90xR - 29 | 17.01.2024
Separate volume and weight ratios. 901R/907R blends are configurations within one document family.
- Product code
- 901R
- Source scope
- UK official product listing; English GB-request TDS served as EN edition
- Reviewed document
- 4 pages · accessed 10 November 2026
Axalta · ClearcoatUltra Productive VOC ClearVolume + weight informationPrinted editionEN 3750S - 49 | 11.03.2026
Separate volume and weight columns, with configuration-specific weight entries.
- Product code
- 3750S
- Source scope
- UK official product listing; English GB-request TDS served as EN edition
- Reviewed document
- 4 pages · accessed 10 November 2026
Axalta · ClearcoatChroma Semi Matt System ClearWeightPrinted editionEN CX_MattClearSystem - 20 | 14.01.2026
Weight-based matt-clear system. Gloss-specific blends are configurations, not separate sampled documents.
- Product code
- CC6010
- Source scope
- UK official product listing; English GB-request TDS served as EN edition
- Reviewed document
- 11 pages · accessed 10 November 2026
Axalta · 2K topcoatPowertint 2K PC TopcoatBasis not establishedPrinted editionEN PPCTC - 12 | 16.01.2024
The standard component table has no textual volume/weight heading. The pictogram does not establish a basis in this review.
- Product code
- PT_PCTC-P
- Source scope
- UK official product listing; English GB-request TDS served as EN edition
- Reviewed document
- 4 pages · accessed 10 November 2026
Mipa · PrimerMipa 2K-HS-Filler EF 42VolumePrinted editionVersion: gb 0526
Hardener-dependent volume ratios. A thinner percentage is shown; its reference quantity was not established in the reviewed sheet.
- Product code
- EF42
- Source scope
- Manufacturer English /gb/ technical sheet linked from global/EMEA car-refinishing catalogue; no specific national approval assumed.
- Reviewed document
- 2 pages · accessed 10 November 2026
Mipa · PrimerMipa 2K-HS-Directfiller F31VolumePrinted editionVersion: en 1116
Volume ratio and thinner percentage. The percentage reference quantity was not established in the reviewed sheet.
- Product code
- F31
- Source scope
- Manufacturer English /gb/ technical sheet linked from global/EMEA car-refinishing catalogue; no specific national approval assumed.
- Reviewed document
- 2 pages · accessed 10 November 2026
Mipa · ClearcoatMipa 2K-HS-Klarlack CC 6VolumePrinted editionVersion: en 0621
Volume ratio and thinner percentage; reference quantity unresolved. One package size is marked discontinued; whole-product discontinuation is not established.
- Product code
- CC6
- Source scope
- Manufacturer English /gb/ technical sheet linked from global/EMEA car-refinishing catalogue; no specific national approval assumed.
- Reviewed document
- 2 pages · accessed 10 November 2026
Mipa · ClearcoatMipa 2K-HS-Klarlack CC 8VolumePrinted editionVersion: en 0621
Volume ratio and thinner percentage. The percentage reference quantity was not established in the reviewed sheet.
- Product code
- CC8
- Source scope
- Manufacturer English /gb/ technical sheet linked from global/EMEA car-refinishing catalogue; no specific national approval assumed.
- Reviewed document
- 2 pages · accessed 10 November 2026
Mipa · 2K topcoatMipa 2K-Acryl-HS-ChassislackVolumePrinted editionVersion: en 1225
Hardener-dependent volume ratios. The weight column is blank; the thinner-percentage reference quantity remains unresolved.
- Product code
- Not recorded
- Source scope
- Manufacturer English /gb/ technical sheet linked from global/EMEA car-refinishing catalogue; no specific national approval assumed.
- Reviewed document
- 2 pages · accessed 10 November 2026
TROTON · PrimerAcryl Filler 4:1VolumePrinted edition21.02.2023
Volume ratio and thinner percentage. The percentage reference quantity was not established in the reviewed sheet.
- Product code
- Not recorded
- Source scope
- European/global English /en catalogue; no UK-specific formulation assumed
- Reviewed document
- 2 pages · accessed 10 November 2026
TROTON · PrimerAnticorrosive Isolation Primer 3:1VolumePrinted edition21.02.2023
Application-specific thinner percentages; reference quantity unresolved. One source row says “standing” in a sanding context.
- Product code
- Not recorded
- Source scope
- European/global English /en catalogue; no UK-specific formulation assumed
- Reviewed document
- 2 pages · accessed 10 November 2026
TROTON · ClearcoatC18 Ultimate Rapid Drying VHS 2:1VolumePrinted edition03.10.2023
The volume mixing instructions state that no thinner is needed. A separate fade-out reference concerns blending.
- Product code
- C18
- Source scope
- European/global English /en catalogue; no UK-specific formulation assumed
- Reviewed document
- 2 pages · accessed 10 November 2026
TROTON · ClearcoatC38 VHS 2:1VolumePrinted edition16.03.2023
Volume ratio and optional thinner percentage. The percentage reference quantity was not established in the reviewed sheet.
- Product code
- C38
- Source scope
- European/global English /en catalogue; no UK-specific formulation assumed
- Reviewed document
- 2 pages · accessed 10 November 2026
TROTON · 2K topcoatTop Coat RAL ColoursVolumePrinted edition23.10.2026
Percentage reference quantity unresolved. The colour-topcoat sheet labels its first mixing component “Clear coat”; that discrepancy is preserved.
- Product code
- Not recorded
- Source scope
- European/global English /en catalogue; no UK-specific formulation assumed
- Reviewed document
- 2 pages · accessed 10 November 2026
Source links identify the reviewed documents; manufacturers may replace files or publish newer editions. Check the exact product, market and application before mixing.
How we did the research
The sample, the method and the limits.
MixByParts reviewed 22 complete manufacturer technical sheets, covering 93 physical PDF pages, from a frozen selection of 23 product-family units. Twenty eligible documents with live manufacturer product-to-document links form the main descriptive sample.
What we recorded
Product family, market, printed edition, measurement basis, component labels, configuration differences, percentage reference quantities and weight-table conventions. Documents were read in full, with visual checks of mixing tables.
What the sample can tell us
How these selected English documents express mixing instructions. This is a bounded convenience sample, not a random survey or an estimate of industry-wide practice.
See exclusions and unresolved evidence
- Imron EL-G1281: a November 2026 manufacturer offering lists the exact product, but an application TDS association was not established. It is excluded from recipe analysis.
- PPG D839: the historical January 2007 sheet was retrieved; current UK applicability remains unconfirmed. It stays outside the main sample.
- Mipa CCM: full review showed that a selected pigmented-topcoat candidate was actually a clearcoat. The category error is recorded; no replacement was inserted.
- TROTON: the bounded catalogue provided only one eligible pigmented-topcoat family, leaving the original target of 24 unfilled.
- Cromax Powertint: the document is included with measurement basis unconfirmed. An unsupported recipe is not inferred from its pictogram.
Blank weight columns do not establish weight instructions. Live links do not establish the newest global revision. Similar documents can share a manufacturer template. The component order recorded here does not automatically establish a physical pouring sequence.
The research does not measure how often people mix incorrectly, product quality or product safety. Missing wording in a reviewed sheet does not establish that the manufacturer provides no explanation elsewhere.
Manufacturer documents remain authoritative for the exact product and application. Corrections or a newer source? Send us the product, market and edition.
Got the exact instructions?
Now do the maths.
Bring the stated ratio and measurement basis to the matching calculator.