COA ships with every batch; regulatory items are issued by SGS as a third party.
First-Grade DOTP (Dioctyl Terephthalate, CAS 6422-86-2) offers the same non-phthalate terephthalate chemistry as our Superior grade with slightly relaxed color tolerance (≤230 APHA), making it a practical, cost-conscious choice for general industrial PVC applications that still demand good quality and consistency. It maintains the reliable volume resistance (≥2×10¹² Ω·cm), flash point (≥210°C) and low volatility of the Superior grade, while providing a more accessible price point for volume buyers. First-Grade DOTP is fully REACH-compliant and a non-phthalate alternative to DOP, delivering dependable plasticizing performance across film, sheet, synthetic leather, footwear and general molded goods.
| Appearance | Transparent liquid |
|---|---|
| Density (g/cm³) | 0.980-0.985 |
| Content (%) | ≥98 |
| Color (APHA) | ≤230 |
| Acidity (as terephthalic acid) (%) | ≤0.035 |
| Volume Resistance (Ω·cm) | ≥2×10¹² |
| Flash point (°C) | ≥210 |
| Water Content (%) | ≤0.1 |
| Grade | Colour (APHA) | What differs |
|---|---|---|
| Superior | ≤150 | Tightest colour tolerance |
| First-Grade | ≤230 | Same performance, wider colour tolerance |
| Qualified | ≤450 | Widest colour tolerance |
One batch, one specification — pick your downstream process for grade advice.
Cable insulation compounds need a plasticizer that holds volume resistivity, keeps volatility low and stays stable through heat ageing. We match the grade to the processing window and to the insulation class the cable has to hold.
Film and sheet need clarity, flexibility and weather resistance, and the plasticizer has to stay in the film so the sheet keeps its dimensions. Film thickness and the end use fix which grade fits, and both are agreed before the first drum is packed.
Coated fabric for furniture upholstery and automotive interiors needs a soft hand feel plus resistance to abrasion and flex fatigue. The plasticizer has to stay in the coating instead of migrating into the backcloth, so the hand feel holds over time.
Soles and upper materials need abrasion resistance and flex crack resistance, and thin parts lose softness fastest once plasticizer migrates. Target hardness and the buyer's flex test set the grade, and the sample is moulded to both.
Glove film has to stay pinhole-free at low thickness, so the plastisol needs a plasticizer with low volatility and a viscosity that holds through the dip. Consistent viscosity across batches is what holds the film thickness inside tolerance.
Household gloves are dipped from PVC plastisol, and the plasticizer sets both the hand feel and how much softener comes to the surface. We match the grade to the target hand feel and to the filler loading on the line.
Five container types; net weight and 20GP loading for each.
Non-hazardous chemical, standard chemical logistics.
Changxing and Wansheng sites in Shandong; continuous esterification and distillation lines.
Every batch tested against the full specification before shipment.
Documents buyers and compliance teams ask for; request any of them.
TDS Specification and test methods 
ISO certificates 9001 / 14001 / 45001 / 50001 Same chemistry, different colour tolerance — choose by the colour your end product needs.
Jining Wansheng Environmental Materials now offers two DOTP product grades: First-Grade DOTP (APHA ≤230) for general industrial PVC applications, and Superior DOTP (APHA ≤150) for premium applications. Both grades are produced to identical standards at the Wansheng Phase II factory, now commissioned alongside Phase Istruction.
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Jining Wansheng Environmental Materials, a wholly-owned subsidiary of Shandong Changxing Plastic Additives, has commissioned its Phase II project, adding 100,000 tonnes/year of plasticizer capacity on top of Phase I's 80,000 tonnes/year. Wansheng now runs 180,000 tonnes/year, and together with the Changxing headquarters site's 50,000 tonnes/year as per environmental approval, the group's existing plasticizer capacity is 230,000 tonnes/year - giving global PVC manufacturers more supply headroom.
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On Wednesday, 2 September 2026, manufacturers of PVC film and artificial leather from Sichuan, Zhejiang and Guangdong visited the Wansheng plant, a subsidiary of Shandong Changxing, for an on-site audit of our DOTP and DCP production. When China's own downstream converters travel to verify a plasticizer source, it is the strongest signal of supply reliability we can offer overseas buyers.
Read MoreTell us the destination port and monthly volume. We reply with FOB/CIF pricing and a packaging plan.
Superior 
Qualified