Presto polyester resin is a flexible, highly reactive, unsaturated polyester resin that can be used on almost any substrate, particularly in conjunction with fiberglass textiles or fiberglass mats for covering large holes, rust, and other damage. It is ideal for use on metal, wood, and concrete, in the automotive industry, gardening (ponds), mold making and model making, and other industrial applications, such as on non-watertight conduits or pipes, boilers, boats, etc.
If the treated surface is to be painted afterwards, we recommend further treatment using presto filler putty or presto fine putty.



Hazard warnings:
- H226: Flammable liquid and vapor.
- H315: Causes skin irritation.
- H319: Causes serious eye irritation.
- H410: Very toxic to aquatic life with long-lasting effects.
EUH208: Contains reaction mass of 2,2'-[(4-methylphenyl)imino]bisethanol and Ethanol 2-[[2-(2-hydroxyethoxy)ethyl](4-methylphenyl)amino]-. May produce an allergic reaction.