Alpex Cyclized rubber resins Solutia Rubber - Elastomer Alpex cyclized rubber resins A family of cyclized rubber resins designed for letterpress inks, offset inks, screen printing inks and coatings. Alpex resins are supplied as 100% solids ( pellets), partly as a 60% solution in white spirit. They are regulated under FDA (? 176.170) and BGA (Empfehlung XL). They provide films free of pores, show resistance against swelling, excellent pigment wetting and adhesion to various substrates, high gloss. Cyclized rubber resins. Provides high gloss, films free of pores, resistance against swelling, very good pigment wetting and adhesion to various substrates.