MC Spray Thinner MEK

General information

Spray Thinner MEK is a solvent for the production of a spray coating formulation. As the name suggests, this thinner is based on a formulation of MEK and various surfactants, which help to achieve an optimal spray coating result.

Spray coating formulations are often made from three components - the low-boiling Spray Thinner MEK, the high-boiling Spray Thinner PGMEA and the corresponding resist. Depending on the mixing ratio and the wanted result, the proportions of the substances must be adjusted.

A high proportion of PGMEA (low vapor pressure) creates very smooth layers with moderate edge coverage, while a formulation with a high MEK content (high vapor pressure) creates very good edge coverage but comparatively rough layers.

The optimal compromise of the solvent mixture is often a mixing ratio MEK: PGMEA of 1: 3 to 3: 1. Depending on the viscosity, required by the spray coating tool used, this solvent mixture is added to the resist in a ratio of 1: 3 to 1:10. So one part resist to 3 parts solvent mixture up to one part resist to 10 parts solvent mixture.

Technical Data Sheet:

For further information please refer to the technical data sheet:
Spray Thinner MEK (SPEC)

Sales Volumes, Purity Grade and Shipping

Available Sales Units:

  • Sales volumes: 250ml, 500ml, 1L, 2,5L and 5L bottles

Our typical lead time is 1-3 working days within Germany, lead times to other countries on request. On demand, in urgent cases our etchants can be shipped within 24 hours to a destination inside Germany.

Please send us your request.

e-mail: sales(at)
phone: +49 (0)731 977 343 0
fax: +49 (0)731 977 343 29

Thank you very much for your interest!

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