In recent years,there are growing trends in using vegetable oils as raw materials in resin production.The reasons towards moving into this direction are,stricter environmental legislation towards maximum allowable volatile organic contents(VOC),less hazardous to health,preserving the earths natural resources and less accumulation problems in the environment.Nowadays with new technology and advanced knowledge,scientists are trying to develop and tailoring a formulation from vegetable oil to produce curable material such as UV curable overprint varnish(OPV).Good reflective index and ability to form smooth film after mix with monomer give an advantage to vegetable oil in producing the competitive UV curable OPV formulation in global market.Palm oil is included as a potential vegetable oil for this product.Moreover,Malaysia is one of the main countries which produce a palm oil in the world thus any effort and successful in developing a product from palm oil will contribute to generate country income.Initial research,palm oil radiation curable resin such as epoxidized palm oil acrylate(EPOLA)and palm oil based urethane acrylate(POBUA)have been developed and patented(MY-142814-A).The EPOLA and POBUA based formulated resins were satisfactorily used as radiation curable materials on woods,ceramic and metal.However at 20-30%pendulum hardness of the cured films,EPOLA and POBUA are considered soft to be used in the coatings industry.Therefore,the purpose of this study is to investigate and evaluate the use of EPOLA as the alternative resins(i.e.non-toxic and green material)in the overprint varnish formulations.It was found that EPOLA can be introduced as an oligomer in the ultraviolet(UV)curable ink system.The coating films of EPOLA have shown good interfacial adhesion on paper/wood/plastic(80-90%interface adhesion refer to the standard method ASTM D3359–09e2),ultra-gloss(90%at 60o)and also non-toxic material.EPOLA is slightly inferior compared to commercially available resins but their excellence in surface glossiness,chemical resistance and together with low cost,make them still look favorable to be used in printing inks applications.The main works of this research were to synthesize EPOLA and to prepare the formulation/production of overprint varnishes.Finally,the OPV materials were cured by UV light using commercial UV curing system(printing and UV curing online)at the Ultimate Print(Karangkraf Media Group,Shah Alam).The UV curing speed was 8,000 sheets/hour.Testing and characterization of the OPV products after printing and UV curing(online system)were found to meet all the requirement standards such as gloss test at 60°: 85-90%(Requirement by manufacturer: >80%)and other tests including flexibility,bending and adhesion.