Extender Trials for TiO2 Efficiency in White Paint
If you want to use TiO2 more efficiently in white paint, an extender is a trial variable rather than a direct replacement for hiding pigment.
Relia's calcium carbonate and barium sulfate candidates can enter a controlled formulation comparison.
- Target
- Accepted opacity and finish
- Balance
- Pigment volume and formulation
- Economics
- Cost per acceptable coating
A Factory Proposal for Your Application
Relia manufactures ground, precipitated and selected surface-coated calcium carbonate grades in China through its own factories.
We can discuss the carbonate and BaSO4 candidates alongside your current TiO2 system. Give us the binder, pigment volume, accepted opacity and application conditions. Each proposed filler keeps its own grade specification; the useful comparison is the finished coating at the required acceptance level, not a raw-powder cost comparison alone.
Target
Accepted opacity and finish
Balance
Pigment volume and formulation
Powder
Grade identity and distribution
Economics
Cost per acceptable coating
A Clear Efficiency Target
Reducing pigment cost needs a comparison of acceptable coating output, rather than a weight-for-weight replacement claim. XM-300 carbonate and the 0.7 micron BaSO4 grade can be considered beside XM-T288 rutile. Their different roles and particle data help construct a controlled pigment-package trial.
Accepted opacity and finish
Pigment volume and formulation
Cost per acceptable coating
An Extender Trial Built Around Accepted Opacity
| Review area | Listed data and acceptance basis | Use in your selection |
|---|---|---|
| XM-300 carbonate · 6003 | Average particle size is 1.5 micron and D97 is 3.8 micron. Confirm dispersion in the proposed paint. | Use the same particle measurement basis, then review dispersion and the result in your process. |
| BaSO4 · 5836 | D50 is listed 0.7 micron, with 98.5% minimum purity. The median alone does not predict hiding efficiency. | Use the same particle measurement basis, then review dispersion and the result in your process. |
| XM-T288 rutile · 5956 | The catalogue states 94% purity. Keep the actual pigment grade and treatment fixed in the baseline. | Keep chemical identity, assay basis and the actual offered grade in the same specification. |
| Economic basis | Compare quoted material costs at a coating that meets the same opacity and other film requirements. | Match the stated measurement method and compare the appearance in your finished material. |
Relevant Grades for Your Shortlist
Use these listed candidates to start a grade-specific discussion with us.
A Formulation Trial Matrix
Keep the accepted opacity target and relevant film properties constant while comparing pigment/extender combinations. Record density and formulation basis when translating between mass and volume. We discuss a cost change only after the trial and real purchase terms show what the acceptable coating actually costs.
Equal weight
Does not establish equal optical effect.
One result
Review the whole film requirement.
Savings
Use actual trial and quotation data.
Particle Preparation and Surface Condition
Filler preparation changes distribution, shape and the surfaces presented to the binder. Those properties affect packing and wetting within the pigment system, but they do not create a universal TiO2-replacement ratio. Keep the supplied distribution and treatment information with the formulation, then compare coverage and viscosity under the same dispersion and film conditions.
GCC: dry and wet routes
Relia uses both dry- and wet-grinding routes for GCC. Grinding and classification are connected to the selected powder's particle specification.
PCC: crystal formation
Relia produces PCC through calcination, slaking and carbonation. The precipitation route forms new particles rather than only grinding the starting mineral.
Selected surface-coated grades
Relia applies surface coating to selected carbonate grades. The actual treatment and intended application remain part of the grade discussion.
Defined carbonate checks
Routine batch checks cover whiteness, moisture and purity. Particle size and oil absorption are checked according to the grade or order requirements.
- Distribution
- Retain average size, D50 and D97 as their actual reported measurements.
- Surface
- Connect a treatment declaration with the application and absorption or wetting evidence.
- Identity
- Keep the selected grade and relevant method with the sample comparison.
Cost per Acceptable Coating
Read the raw-material cost together with the coating that meets your requirements. We discuss the approved grades and evidence behind that comparison. No saving is assumed until your formulation and actual purchase terms support it.
Choose the Next Useful Guide
If you make waterborne interior paint, buy calcium carbonate for the paint balance you need: opacity, viscosity, application and film properties.
If you are sourcing TiO2 for an exterior white coating, rutile content or a bright powder is only part of the decision.
If a high-solids coating becomes too viscous as filler loading rises, compare wetting and particle behaviour in the complete binder system.
Start with Your Material Brief
Send us the details below to review a concrete grade proposal and the next evaluation step.
- Application and process
- Target: Accepted opacity and finish
- Material and grade
- Your current grade or one of the relevant product links above.
- Important requirements
- Balance: Pigment volume and formulation; Economics: Cost per acceptable coating
- Purchase scope
- Trial or order quantity, preferred package and destination.
Qingdao Relia Industries Co., Ltd. · China manufacturing of industrial minerals, chemicals and the listed packaging products.
10 / 11Speak with Our Materials Team
Qingdao Relia Industries Co., Ltd.
Tell Relia the material, application, required grade, quantity and destination. Include the product link or the key limits you already use, so the next conversation starts with a concrete proposal.
Phone
+86 18561762631Call to discuss your enquiry.Qingdao contact address
Shuyuan Road, Qingdao,Shandong, ChinaQingdao contact address for the company.
