Commercial · PVA 1788
Published 2026 · Ningxia Dadi PVA technical desk
Dadi PVA 1788 supplier — the difference between a trader and a plant matters more than the label on the bag. Here is where ours comes from.
Dadi PVA 1788 is a 88 mol% hydrolysis grade. The sections below cover the commercial detail buyers actually ask about before they order.
| Brand | Dadi (export brand: Ningxia Dadi) |
|---|---|
| Grade / Model | 1788 |
| Product | Polyvinyl Alcohol (PVA) |
| Degree of hydrolysis | 88 mol% |
| Avg. polymerization (DP) | 1700 |
| Viscosity (4% aq., 20C) | grade-specific (see TDS) mPa.s |
| Solubility | partially hydrolyzed |
| China-market code | - |
| CAS / HS code | 9002-89-5 / 39053000 |
| Appearance | white flake, granule or powder |
| Purity | ≥93.0% (grade dependent) |
| pH (4% sol.) | 5-7 |
Supply reliability
Being inside a calcium-carbide-to-PVA circular chain means feedstock is ours, so supply holds even when the merchant market tightens. We keep buffer stock on the common grades.
Why buy from the manufacturer
Buying Ningxia Dadi 1788 direct means one fewer hand between you and the reactor — better price, faster document turnaround, and a lot traceable to a specific batch.
Our PVA plant
The PVA branch has run since 2009 (Phase I 50,000 t, Phase II 80,000 t, ~585 staff). Key units are international: Taiwan Cheng-Chi alcoholysis, Netherlands Nuyn (dewatering), German Netzsch milling, and Japanese ABB robotic palletizing.
From the floor
During a 2024 VAM squeeze, several traders went allocation-only; our direct customers kept their volumes because the upstream is in-house.
FAQ
Are you a trader or the producer?
We are the producer (Ningxia Dadi / export brand Ningxia Dadi). Trading arms place orders, but the material is ours.
Can you hold stock for regular buyers?
Yes — contract buyers get reserved buffer on 1788/1799/2488 and the common export grades.
Quality & documents (trust signals)
Every lot tested on Shimadzu GC-2014C / Agilent AOC-20 GC and Brookfield DV2T viscometer; batch sample kept to expiry. EN TDS, MSDS, COA provided. REACH and ISO 9001 status available on request [verify against current certificate].
Packaging, MOQ & lead time
25 kg PP woven bag (inner PE); jumbo bag on request. MOQ from 1 MT for stock grades, 16 MT for full container; lead time 7-15 days ex-works Ningxia. Incoterms FOB/CFR/CIF; payment T/T or L/C.
About the supplier
Ningxia Dadi Circulation Development Co., Ltd. (PVA branch since 2009; Phase I 50,000 t + Phase II 80,000 t; ~585 staff; ABB robotic palletizing; Shimadzu GC-2014C + Agilent AOC-20 gas chromatographs + Brookfield DV2T viscometer for QC; named a national first-batch green manufacturing demonstration enterprise in 2017; calcium-carbide to VAM to PVA circular chain.
Written by Li Wei, Senior Technical Sales Engineer, Polyvinyl Alcohol Division — Ningxia Dadi Circulation Development Co., Ltd. - 9 years placing PVA grades with textile, adhesive and construction compounders across Southeast Asia, the Middle East and South America. Replies to most inquiries within one business day.
Get a quote / sample / documents
Send grade 1788, quantity, destination port and incoterm and we return a firm quote, free 500 g sample and EN TDS/MSDS/COA the same business day.
