CPM-31 PVC Paste Resin with 1200-1400 Polymerization, 2.0-4.0 Pa.s B-type Viscosity, and ≤10 ug/g Residual VCM

JILANTAI CPM-31 PVC Paste Resin - Technical Product Report

1. Executive Summary

CPM-31 is identified in the supplied Technical Data Sheet as a PVC paste resin grade. The product is supplied as a white powder and is referenced against executive standard GB/T 155592-2008.

The source provides key quality parameters covering polymerization level, B-type viscosity, impurity particles, volatile matter, sieve residue, residual vinyl chloride monomer (VCM), scraper fineness, bulk-density-related data and thermal whiteness. These parameters provide a practical basis for incoming quality control and formulation evaluation.

This report reorganizes and expands the source information into a customer-facing English technical document. The source does not provide detailed end-use recommendations, processing recipes, plasticizer demand, gelation behavior or application-specific performance data; any application discussion below is therefore presented as technical evaluation guidance rather than supplier-certified performance.

2. Product Overview

3. Technical Data

Source-quality note: Row 7 contains inconsistent bilingual labeling in the supplied TDS. The Chinese label reads bulk density (g/ml), while the English text appears to reference alcohol extract mass fraction. Because the numerical value is 0.2-0.4 and the Chinese/unit presentation supports bulk density, this report flags the inconsistency rather than silently correcting the supplier document.

4. Technical Performance Interpretation

Polymerization level: The average degree of polymerization range of 1200-1400 is one of the principal resin-characterization parameters in the supplied TDS. In formulation work, polymerization level can influence processing and final PVC properties, but the source does not provide comparative performance claims.

Paste viscosity: The stated B-type viscosity range of 2.0-4.0 Pa.s provides a direct quality-control reference for paste behavior under the supplier's stated test basis. The exact test procedure is not included in the one-page source.

Purity and cleanliness: Impurity particles ≤20 pcs, zero residue on the 250 μm mesh and ≤0.1% residue on the 63 μm mesh provide quality indicators for particle cleanliness and coarse material control.

Volatile matter: Volatile matter including water is limited to ≤0.38%. Moisture/volatile control is relevant to storage consistency and downstream plastisol processing.

Residual VCM: Residual vinyl chloride monomer is limited to ≤10 ug/g. Regulatory and end-use compliance must still be assessed against the requirements applicable to the customer's market and finished product.

Fineness: Scraper fineness ≤40 μm provides an additional indication of particle/agglomerate fineness. The source does not state the detailed test method.

Thermal whiteness: Whiteness ≥95% after 160°C for 10 minutes provides a source-stated indicator of color retention under the specified thermal condition; it should not be interpreted as a complete thermal-stability test.

5. Potential Application Relevance

The supplied TDS identifies CPM-31 as PVC paste resin but does not list specific finished-product applications. The following table therefore describes common technical evaluation areas for a PVC paste resin and should not be read as supplier-certified application recommendations.

6. Formulation & Processing Considerations

Establish paste viscosity using the customer's actual plasticizer, stabilizer, filler and additive package rather than relying on resin data alone.

Confirm mixing sequence, mixing temperature and deaeration conditions to minimize entrapped air and achieve reproducible plastisol behavior.

Evaluate viscosity development after mixing and during storage because the supplied TDS provides only a resin quality parameter, not finished-plastisol aging data.

Determine gelation and fusion conditions experimentally for the intended process; the supplied TDS does not provide gelation temperature or fusion-time data.

For appearance-sensitive applications, evaluate thermal color stability under the customer's real oven/process profile in addition to the stated 160°C/10 min whiteness test.

Control warehouse moisture exposure and package integrity to maintain consistent volatile content and powder handling.

7. Quality Control & Incoming Inspection

8. Commercial & Technical Evaluation Summary

9. Storage, Handling & Safety Considerations

The supplied one-page TDS does not contain detailed storage, packaging or safety instructions. Commercial users should obtain and follow the current supplier Safety Data Sheet and packaging/storage documentation.

As general product-handling practice, keep resin packaging closed and dry, avoid contamination, control dust during transfer, and maintain traceability by lot. These are general handling considerations and are not presented as source-stated CPM-31 requirements.

10. Limitations of the Supplied Data

The source is a concise one-page technical data sheet. It does not state test methods for every parameter and does not provide particle-size distribution, apparent viscosity curves, plasticizer absorption, gelation/fusion characteristics, paste-aging behavior, mechanical properties, packaging, shelf life, storage conditions or detailed application recommendations.

Accordingly, this report does not assign numerical values or supplier claims to those missing properties. For commercial approval, the current supplier TDS, COA, SDS and any application-specific technical documentation should be reviewed together.

11. Conclusion

CPM-31 is presented in the supplied TDS as a white-powder PVC paste resin meeting the stated GB/T 155592-2008 executive standard. Its principal documented quality controls include an average degree of polymerization of 1200-1400, B-type viscosity of 2.0-4.0 Pa.s, impurity particles ≤20, volatile matter ≤0.38%, residual VCM ≤10 ug/g, scraper fineness ≤40 μm and thermal whiteness ≥95% at 160°C for 10 minutes.

For customer qualification, the resin should be evaluated in the actual plastisol formulation and process, with particular attention to viscosity, viscosity aging, dispersion, gelation/fusion, surface appearance, thermal color stability and finished-product performance. These application tests should supplement, rather than replace, the source quality parameters.

About Qingdao Botian Chemical Co., Ltd
Qingdao Botian Chemical Co., Ltd belongs to Qingdao Tida International Trade Co., Ltd, founded in 2003. After eighteen years of technological and scientific innovation and production line management, we have became the leading company of Titanium Dioxide products, PVC Paste Resin products production and international sales company.
Main products include over a dozen kinds of high-precision chemical products which are chloride process and sulphate process Titanium Dioxide, Titanium Oxychloride, Titanium Tetrachloride, High Titanium Slag, PVC Paste Resin, Caustic Soda etc. With a professional, tight, young technology R&D team, making the product has a high precision and purity of scientific evidence and quality guarantee.
In the next years, Botian & Tida will continue moving steadily and firmly. Maintenance with the domestic large state-owned enterprises and Southeast Asia, North America and European countries the business relationship. At the same time we sincerely welcome and look forward to your arrival — TIDA's new partner.
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