Honeycomb Purification Panel: Common On‑Site Faults & FAQ
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Q1: Why do honeycomb purification panels bulge after installation?
A: Panel bulging is the most common defect for honeycomb purification panels. The core reasons are unqualified bonding process and unbalanced internal stress. Low‑grade honeycomb panels use uneven glue coating or one‑sided thin adhesive layer. After installation, temperature and humidity changes cause inconsistent expansion and contraction between metal skin and honeycomb core, resulting in local bulging. In addition, if the honeycomb core is damp before compounding, residual water vapor will expand and cause surface warping. Always select fully cured and high‑precision compounded honeycomb purification panels to avoid bulging issues.
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Q2: Why do panel edges crack after cutting and installation?
A: Honeycomb purification panels have rigid honeycomb core structure. Improper cutting tools or violent construction will cause micro cracks on the edge section. Many construction teams fail to perform edge sealing immediately after cutting. Unprotected open honeycomb holes absorb moisture and deform, leading to edge cracking and gap widening. Furthermore, excessive keel spacing or uneven force on the wall will crack panel edges under stress concentration. Standardized cutting tools and instant edge sealing are mandatory for honeycomb purification panel construction.
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Q3: What causes delamination between metal skin and honeycomb core?
A: Core delamination of honeycomb purification panel mainly comes from three factors. First, poor surface degreasing treatment of metal sheets leads to insufficient adhesion. Second, manufacturers shorten high‑pressure compounding time to improve output, resulting in incomplete bonding. Third, long‑term humid environment invades the honeycomb layer through unsealed cuts. Once delamination occurs, the whole wall loses flatness and structural stability, which directly fails GMP acceptance. Testing sample bonding strength before bulk purchase is an effective way to avoid defective honeycomb purification panels.
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Q4: Why cannot honeycomb panel meet cleanroom cleanliness standards?
A: Many people assume all honeycomb purification panels are dust‑free. In fact, inferior honeycomb cores have unclosed holes and tiny floating fiber residues. After cutting and vibration, fine particles continuously escape from the core layer, causing excessive dust in cleanrooms. In addition, poor edge sealing and unsmooth joint gaps will hide dust and bacteria, failing pharmaceutical and medical cleanroom inspection. High‑grade fully sealed honeycomb purification panels with dust‑free core must be adopted for formal GMP workshops.
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Q5: Will honeycomb purification panels deform under long‑term temperature difference cycling?
A: High‑quality honeycomb purification panels feature stable structure and low thermal expansion coefficient, suitable for long‑term cleanroom air‑conditioning cycling. However, low‑cost honeycomb panels use irregular honeycomb grids and uneven core thickness. Under repeated cold and hot alternation, the panel surface will appear wavy deformation, affecting wall flatness and cleanroom aesthetics. For high‑standard GMP laboratories and hospital clean areas, high‑precision standardized honeycomb core panels are required.
? As a professional Foshan local manufacturer, SAMZOON strictly controls honeycomb core precision, adhesive uniformity and high‑pressure composite process of honeycomb purification panels. We provide dust‑free core treatment, full edge sealing customization, urgent production scheduling and free sample testing. Our technical team delivers targeted construction guidance to solve common faults such as bulging, cracking and delamination, ensuring smooth cleanroom acceptance. A large number of South China pharmaceutical, medical and laboratory purification project cases are available for reference.
When sourcing honeycomb purification panels, do not only compare unit price. Focus on core flatness, bonding uniformity, dust‑free treatment and finished‑product stability. Standard material selection and standardized construction are the core keys to avoid on‑site faults and pass cleanroom acceptance stably.
