Hot Melt Pressure Sensitive Adhesives (HMPSA) Using Sigma Mixer
March 11, 2026
This video captures a live lab trial conducted at the Mixing Technology Centre of Unique Mixers, demonstrating the manufacturing process of Hot Melt Pressure Sensitive Adhesives (HMPSA) using our Sigma Mixer with Tangential Blades.
🔬 About the Trial: The objective of the trial was to evaluate the performance of the Sigma Mixer in handling the complex formulation of hot melt PSAs—materials known for their high viscosity and permanent tack.
📽️ 𝐏𝐫𝐨𝐜𝐞𝐬𝐬 𝐎𝐯𝐞𝐫𝐯𝐢𝐞𝐰:
1. Melting of Plasticizers to initiate the blend
2. Mastication of Rubber to achieve uniform consistency
3. Addition of Tackifying Resins
4. Melting of Rubber and Tackifying Resins
5. Vacuum Application
6. Product Discharge
7. Product Packaging
⚙️ 𝐖𝐡𝐲 𝐔𝐧𝐢𝐪𝐮𝐞 𝐌𝐢𝐱𝐞𝐫’𝐬 𝐒𝐢𝐠𝐦𝐚 𝐌𝐢𝐱𝐞𝐫?
The Sigma Mixer’s robust tangential blade design enables:
• Efficient shearing, kneading, and folding
• Handling of extremely high viscosities
• Smooth discharge of the final product
🧪 𝐅𝐢𝐧𝐚𝐥 𝐎𝐮𝐭𝐜𝐨𝐦𝐞:
The hot melt PSA was uniformly mixed with high clarity and a consistent yellowish-green hue. The result reaffirms the Sigma Mixer’s suitability for heavy-duty adhesive applications.
🧪 A𝐛𝐨𝐮𝐭 𝐔𝐧𝐢𝐪𝐮𝐞 𝐌𝐢𝐱𝐞𝐫
𝐄𝐱perts in Adhesive Mixing: We specialize in mixing solutions for adhesives of all types, including pressure-sensitive hot melts.
🏭 Trusted by Top Adhesive Manufacturers: Many leading adhesive brands rely on our mixers for their critical processes.
⏳ Over 40 Years of Experience: Backed by four decades of innovation and engineering excellence in mixing technologies.
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