Special aged (P-1036) Oxidized linseed oil Degen Oils (Process / Natural) SEALANT Blown Linseed Oils are polymerized by oxidation to increase viscosity and acid number. Blown Linseed is used as a plasticizer for caulks and weather-proofing compounds. Blown Linseed Oils dry faster than heat-bodied linseed oils Oxidized linseed oil. Used as plasticizer in caulks.