... 2.made from paper that impregnated with phenolic resin 1.Description: 3021C paper based phenolic board is made from paper that impregnated with phenolic resin under ... with X, XX, XXX, XP, XXP, XXXP, XPC ( NEMA standard) No. ITEMUNITVALUE3021C paper based phenolic board1Densityg/cm31.30~1.502Heat resistance Thickness ≤20mm ...