A laminating kit developed for repairs of various laminated parts, e.g. boat hulls, swimming pools and garden ponds, sporting articles, body panels on vehicles, etc. Laminating polyester preparation: To the required quantity of polyester add during permanent stirring 2% of catalyst. Prepare only such amount of resin that is workable during 15 minutes at temperature +20°C. Never laminate at temperatures lower than +15°C. Hardening lasts longer and repair quality decreases.