The Solution to Plaster Defoaming Challenges: Chemi Tech's High-Efficiency Approach

In the production of plaster products, bubbles are a common culprit leading to pinholes, dimples, reduced strength, and even appearance scrap. Whether for plasterboards, decorative elements, or precision molds, bubble defects directly impact yield rates and customer trust. Traditional methods like manual stirring for deaeration or post-production repair are inefficient and limited, unable to meet the demands of large-scale, high-quality manufacturing.

Chemi Tech delves deeply into this pain point, developing a targeted series of specialized plaster defoamers. Our solution is not merely about adding a product; it's based on a profound understanding of the plaster hydration system and bubble formation mechanisms. Our products rapidly penetrate and disrupt bubble films, causing bubbles to coalesce and burst quickly while suppressing the formation of new ones, thus controlling the issue at its source.

The implementation steps are as follows: First, our technical engineers can collaborate with you to analyze the plaster materials, process parameters, and specific bubble types involved (such as those entrained during mixing or generated by reaction). Subsequently, we recommend a compatible defoamer type and dosage, typically suggested for addition during the initial or middle stages of mixing to ensure even dispersion. The addition ratio should be determined through small-scale trials, generally within the range of 0.1% to 0.5%. Finally, effectiveness is verified by observing slurry leveling, the cross-section, and surface condition of the cast product.

We previously assisted a producer specializing in high-quality plaster decorative moldings. This client faced persistent issues with fine bubbles accumulating at the edges of intricate patterns during casting, resulting in a dense, pitted surface after demolding. Subsequent sanding processes were labor-intensive and often damaged fine details. After adopting Chemi Tech's customized defoaming solution, bubbles in the slurry significantly decreased during the later stages of mixing, casting fluidity improved, and demolded products exhibited smooth surfaces with sharp, clear pattern definition, requiring almost no post-repair. This led to a substantial increase in the rate of premium-grade products, earning high recognition from the client.

Choosing Chemi Tech means not just selecting a product, but gaining comprehensive production support to ensure consistent plaster product quality. We are committed to helping you overcome defoaming challenges and achieve cost reduction and efficiency improvement through our professional expertise and products.