Thiaj PVA txhais nrhiav rau raws li cas hydrolysis degree (DH), molecular weight (MW), thiab yog cov neeg hais tias lawv. Rau cov packaging yam nrog nyob, mus qhov partian hydrolyzed grades (DH 87-89%) ib tug lub PVA 1788 thiab ntawd noj cas solubility. Qhov fully hydrolyzed grades (DH ≥98%) nyob rau PVA 2488 tej water resistance rau construction thiab outdoor coatings. PVA High-MW (85-124k Da) tej films tsis muaj kawg rau heavy-duty packaging, los yog low-MW (13-23k Da) li cas ideal rau quick-drying adhesives. Mus qhov particle size rau dissolution speed: fine powders (≤100 mesh) tej rapid applications, los yog coarse granules tej slow-release formulations. Rau food thiab pharmaceutical use, prioriti FDA-certified, low-ash grades. PVA customized ntawm suppliers los yog Guangzhou Minwei tej DH thiab MW tailored li cas optimal performance.