1Acid scavengersAcid scavengers allow polymers to be more resistant in humid environments (hydrolysis), as well as towards acids and free radicals, therefore slowing down the process of disintegration in polymers.
2Adhesion promotersAdhesion promoters are substance that increase adhesive strength between the polymers and fillers.
3Antiblocking agents

Antiblock additives can prevent products from inappropriately sticking to surfaces and are routinely added to film and bags.
4Antifogging agentsAnti-fogging functional additives are developed to prevent fog from forming on the inside of packaging.
5AntimicrobialsHelp prevent microbiological attack.
6AntioxidantsHelp prevent “oxidation”, the polymer reacting with oxygen.
7Antislip agentsAntislip additives reduce friction between surfaces.
8Antistatic agentsHelp to prevent the build-up of static electric charge.
9Blowing and foaming agentsForm gases in the plastic to produce a foam material.

Brighteners are designed to brighten colors or mask yellowing in lacquers, paints, inks, plastics, photo-processing solutions and fibers.
11Coupling agents

A coupling agent is defined as a compound which provides a chemical bond between two dissimilar materials, usually an inorganic and an organic.
12Crosslinking agentsA chemical bond formed between adjacent chains of a complex molecule such as a polymer.
13Curing agentsCuring agent react with the primary resin promoting solidification.
14DefoamersA defoamer or an anti-foaming agents are surfactants that suppresses or eliminates foam.
15DispersantsDispersants are additives help in uniform dispersion of particles within slurry.
16FillersAdditives which improve physical, mechanical, chemical properties of polymers and reduce cost.
17Flame retardantsTo prevent ignition or spread of flame in plastic material.
18Heat stabilisersTo prevent decomposition of the polymer during processing.
19Impact modifiersEnables plastic products to absorb shocks and resist impact without cracking.
20Light stabilisers /UV-stabiliserUsed to inhibit chemical degradation from exposure to UV light.
21LubricantsUsed to improve processability of plastics by increasing the flowability.
22Mold release agentsMold release improve injection molding process by reducing friction
23Nucleating agentsNucleating agents help improve product stability and can prevent plastic from warping
24PigmentsTiny particles used to create a particular colour.
25PlasticisersUsed to make plastics softer and more flexible.
26Wetting agents.Wetting agents increase the spreading and penetrating properties of a liquid by lowering its surface tension.