#Viscosity cps free#

Thermal shock results using boards coated with tri-modal applicatorД«oards were inspected for coating cracking using 40X magnification at the intervals indicated in the tables. The zero-cavity nozzle tip prevents material build-up during operation and allows for cleaning without disassembly there are minimum wetted parts to replace or clean the use of advanced materials and smooth internal surfaces also makes them much easier to clean. The SC-300 applicator is easy to maintain and offers several key features to make ownership simple. The SC-300 tri-modal applicator is designed for use with solventless coatings, thereby supporting environmentally responsible practices. However, with 100% solids materials, whatever wet thickness is applied is converted into a similar dry-film thickness, and this has proved to be the problem with 100% solids material, both from a cost (the materials are inherently more expensive due to higher solids content) and material performance point of view. In addition, VOC emissions are generally high due to the large solvent content this is becoming more and more relevant in the European market place. With some solvent-based coatings using as much as 80% solvent to achieve a useable viscosity under 100 cPs, wet film thicknesses are generally high (200вЂ“300 Ојm) to deliver a dry-film thickness that meets the IPC requirements of 30вЂ“130 Ојm. This technology is ideal for use with solvent-containing materials and generates a leaf-like fan pattern ensuring accuracy and edge definition, as well as delivering fast coating cycle times. The Asymtek film-coater was designed to provide non-atomised, selective application of conformal coating materials with viscosities of less than 100 centipoise (cPs).

#Viscosity cps free#

The non-atomised film-coater technology in particular, is extremely prevalent and, as existing equipment, the goal has always been to formulate a VOC free drop-in replacement for the solvent-based materials. In Europe, many of the automotive electronic suppliers use Asymtek selective coating equipment, together with solvent-based materials.

The particular areas that were focused on were optimising cycle times and the amount of material applied, and agreeing the optimal curing of these materials. HumiSeal has carried out significant technical service work in its laboratories on behalf of a major Tier 1 automotive supplier to address the application issues that arose during qualification with HumiSeal UV40, and to optimise application parameters of the Asymtek selective coating. Marie Kaing, HumiSeal and Jacques Mycke, Asymtek