Synresins Limited prides itself in a wide range of alkyds that offers the following key performance features;
- Ability to offer improved surface wetting (from the bio-based fatty acid portion of substrates and pigments)
- Lower cost (also primarily from the fatty acid portion)
Synresins Limited further classifies alkyds according to oil lengths;
- If the amount of oil in an alkyd is over 60%, it is called a long oil alkyd.
- If it’s between 40 and 60%, it’s known as a medium oil alkyd,
- Those with less than 40% are considered short oil alkyds.
In addition to classifying alkyds by their oil length and the type of fatty acid present, Synresins Limited alkyds are also classified into oxidizing and non-oxidizing categories. Oxidizing alkyds crosslink through a complex multistage auto-oxidation mechanism, whereas Non-oxidizing alkyds do not crosslink and are thus thermoplastic unless their available hydroxyl groups are cross-linked with an aminoplast (heat cured) or isocyanate cross linker (ambient cured).