All of the following are needed for an acrylic application service EXCEPT?

In an acrylic application service, the primary components required include the liquid monomer, polymer powder, and a brush. The liquid monomer and polymer powder work together to create the acrylic material that forms the enhancements on the nails. The liquid monomer is a crucial solvent that, when mixed with the polymer powder, creates a workable acrylic material. The brush is essential for applying the mixture onto the natural nail and shaping it correctly.

An accelerator, while it may speed up the curing process of the acrylic, is not strictly necessary for the application itself. The main focus is on the combination of the monomer and powder along with the application tools. Therefore, the absence of an accelerator will not prevent the acrylic application from occurring, making it the correct answer to the question about what is not needed for the service.