Frequent questions.
01
What is unsaturated polyester resin and how is it obtained?
The unsaturated polyester resin is obtained by polycondensation of a diacid with a dialcohol and an unsaturated monomer, such as styrene. Its presentation is liquid and viscous, and requires a catalyst to solidify. The curing or hardening process has two phases: gelation and curing itself.
02
What are the main properties of polyester resin and in what applications is it used?
Polyester resin has properties such as hardness, tensile strength, thermostability, among others. It is used in laminates on fiberglass, body repair and manufacturing of figures and crafts due to its malleability and resistance to various factors.
03
How is polyester resin preserved and how long can it last if stored properly?
To preserve the resin, it should be stored in a cool, dark place without direct contact with sunlight and at less than 25°C. With the help of stabilizers built in during manufacturing, it can last for several months.
04
What is polyester resin used for in the manufacture of stratified systems (GFRP) and in the creation of parts in molds?
The resin is used in the manufacture of stratified systems (PRFV) when applied with fiberglass, providing chemical resistance. It is also used to create parts in molds, from nautical elements to tanks/tanks, providing rigidity to surfaces that require it.
05
What are the different types of polyester resins available and their specific uses?
The types of resins available are isophthalic, orthophthalic, semi-elastic, and Gelcoat. Each one has specific uses, such as manufacturing aquatic units for isophthalic, greater hardness in orthophthalic, elongation capacity in semi-elastic, and resistance to aggressive environments in Gelcoat.
06
How is polyester resin applied as a topcoat and what are the compatible materials?
The resin is applied as a final coating layer on surfaces such as iron, concrete, wood, PVC, glass, etc. It is required to prepare the surface, remove the shine with sanding and apply an activating primer for glazed surfaces.
07
What specific uses do semi-elastic polyester resin and Gelcoat have?
Semi-elastic polyester resin is recommended for waterproofing roofs, decks and terraces due to its elongation capacity. Gelcoats, based on polyester resin, are resistant to aggressive environments, UV rays and hydrolysis, used as a final layer in various applications including maritime.