Acrylic Resins

Acrylic Resins

1.Thermoplastic Acrylic Resins

Thermoplastic Acrylic Resins are unique polymers without any reactive functional groups and therefore do not react with any other matters. Their polymer chains are not cross-linked and they react by air-drying. Thermoplastic acrylics typically use a high level of methyl methacrylate in their polymer backbone to provide excellent hardness and durability. Thermoplastic resins can be softered and reshaped when the temperature is increased. These resins are ideal candidates for some industrial processes.

They are mainly used in:

- Road marking paints

- Metal and galvanized surface's coatings

- Architectural coatings

Aerosol coatings



2.Thermosetting Acrylic Resins

Thermosetting Acrylic Resins are designed with functional monomers to either react with themselves when exposed to heat or moisture or with a cross-linker to form a cross-linked film. As a group, Thermoset Resins have low molecular weight and thus have higher application solids. Once cross-linked, as a class, they provide films with excellent resistance to organic solvents, moisture and UV light. These types of resin do not soften appreciably when exposed to moderately high temperature as thermoplastics do.

They are mainly used in;

Marine paint

- Industrial finishing

Automotive paint

- Outdoor applications

42 x 100 x OH%

The amount of polyisocyanate used to 100g of acrylic resin (100% solid) = x (NCO/OH)

17 x NCO%

General suggestion is NCO/OH ratio should be equal to 1.


If the product has to be harder and has more resistance for chemicals; NCO/OH>1

If the product has to be flexible has good adhesion and weatherability: NCO/OH<1

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