... Short time for delivery4,Popular in overseas.Specification of Paraformaldehyde: Product nameparaformaldehydePurity91~93%Hs code29126000Ash content0.01 ... , butachlor, machete, bismerthiazaetc.2,Coating: used for synthesis of oil paint and top-grade for car paint3,Medicine ... derivatives, developers,vinyl resin softener and the solution of formaldehyde in synthetic resin, surfactant plastics , rubber, ...