工業上的塗佈產品多為懸浮液流體，而本實驗以淋幕式塗佈為研究系統，探討溶液中添加顆粒對其塗佈行為的影響。在淋幕式塗佈實驗中，主要的塗佈缺陷為踵形(heel)及空氣滲入(air entrainment)，其中塗佈速度上限空氣滲入的發生受到流體物性及邊桿高度影響。實驗流體分成甘油水溶液與甘油加入聚甲基丙烯酸甲酯(PMMA)顆粒之懸浮液兩個部份來討論。
關於甘油水溶液相關的研究發現到當流體黏度越小或表面張力越大，可使塗液承受較高剪切形變量(shear rate)時仍能維持穩定，所以塗佈速度較快。在淋幕式塗佈實驗中，固定流量下提高淋幕落下的距離會抑制空氣滲入的發生使塗佈速度增快。
在懸浮液的研究發現，添加顆粒會使流體的塗佈視窗擴大，最小成膜流量降低，由於塗佈時顆粒隨淋幕落下擠壓氣液交界面，使動態濕潤線往上游移動，延遲空氣滲入的發生，使流場在更高的塗佈速度也可以穩定，而塗佈速度的增加量和加入顆粒的數量密度有關，當數量密度達到最佳值時塗佈速度增加最大，且不論流體的黏度、表面張力改變或淋幕落下的高度變化，顆粒使空氣滲入延後的現象都會發生。

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