Synthomer’s butyl ethyl propanediol (BEPD) is the ideal diol for the synthesis of saturated and unsaturated polyesters. BEPD is a branched aliphatic diol with primary OH groups. Its branched structure offers a reduction in crystallinity, increased hydrophobicity and improved compatibility of the polymer.

Also available as liquid BEPD 70L (70% BEPD, 25% NPG, 5% water).