Tel: +86-181 3837 3963 (Whatsapp, Wechat) | contact@jctmixing.com
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Tel: +86-181 3837 3963 (Whatsapp, Wechat) | contact@jctmixing.com
| Project | PU glue | Silicone sealant |
| Main raw materials | Isocyanate, polyether polyol, filler, plasticizer, etc. | Organic silicone polymer, crosslinker, filler, etc. |
| Sensitivity to moisture | Extremely high, requires strict dehydration and dehumidification treatment | Generally, some models are sensitive to moisture |
| Batching system | Closed, vacuum dehydration system to prevent reaction with moisture | Ordinary metering and mixing, some formulas require vacuum |
1. Premixing device
Weigh the raw materials and add them to a triple shaft mixer or sigma mixer for mixing.
2. Vacuum dehydration system
Prevent the moisture in the raw materials from reacting with isocyanate.
3. Main mixer
Double planetary mixer or triple shaft mixer, low-speed mixing, strong shear.
4. Degassing system
Mix under vacuum to prevent bubbles from remaining.
5. Discharging system
Discharge by pressure pump, filling equipment or storage tank.
6. Packaging
Barrel or soft packaging, high sealing requirements.
1. Raw material feeding
107 glue, filler, cross-linking agent are added to a sealed stirring kettle.
2. Dispersion mixing
High-speed dispersion or vacuum mixing to avoid filler agglomeration.
3. Degassing
Degassing treatment is carried out under vacuum when necessary.
4. Addition of additive or catalyst
Depends on the formula.
5. Discharging and packaging
Pneumatic pressure pump or screw pump discharges to the packaging system, hose or barrel.
Scenarios requiring high elasticity and wear resistance (such as automotive seals).
High requirements for bonding metal/plastic (primer treatment required).
Weather resistance is preferred (such as building curtain walls).
Transparent/colored colloid is required (silicone is easy to color).
We are professional mixing manufacturer, providing sigma mixer, reactor, dual shaft mixer, etc .
