What is the difference between unstaurated polyester resin and saturated polyester resin?
Scott Bader only make unsaturated polyester resins which contain an unsaturated acid called Maleic acid / anhydride.They are liquid resins where the unsaturation in the Maleic forms crosslinks through the styrene monomer when you add the catalyst to form a three dimensional solid. Melinex is a polyester film based on a saturated polyester – they are solids so are not in the normal liquid form like unsaturated polyester resins dissolved in styrene monomer. rgds, [Back To Top] • Hi, I am refurbishing the wooden deck of my Flying Fifteen. We have stripped all old varnish and rubbed down and moving on to the next step. We are contemplating using West System epoxy. West advice is to use 3 coatings of 105/207 system with 3 coats of two pack polyurethane varnish. All technical info suggests the use of 207 hardener to get clear finish, but if following up with the two pack varnish would this be necessary or could we get away with a cheaper hardener. Yes you could get away with using WEST SYSTE
