Silicone Sealant And PU Glue - Basengreen

Leading Glue Production Line Equipments Manufacturer.
Tel: +86 181 3837 3963 | jctben@mixmachinery.com

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Principle and Raw Material Comparison

Comparison Item	Silicone Sealant Production Line	PU Glue Production Line
Main Ingredients	Polysiloxane (such as 107 adhesive), filler (silica), crosslinker, coupling agent, catalyst, etc.	Isocyanates (such as MDI/TDI), polyols, fillers, plasticizers, catalysts, etc.
Reaction Mechanism	Associative crosslinking reaction (condensation or addition type)	Addition polymerization (reaction of isocyanates with hydroxyl groups)
Reaction Characteristics	Mild, high viscosity, moisture-sensitive	Highly exothermic reaction, moisture-sensitive
System Type	One-component (RTV) or two-component (RTV-2)	One-component moisture-curing or two-component mixed reaction type

silicone sealant production line

Comparison of Production Processes

Process steps	Silicone Sealant Production Line	PU Glue Production Line
Mixing process	Vacuum kneading, planetary mixing, or triaxial high-pressure dispersion	Vacuum reaction, planetary mixing, or metered mixing systems
Reaction control	Low-temperature stirring and high-viscosity dispersion control	Strictly controlled anhydrous environment and temperature reaction system
Filling method	Silica must be added in stages to prevent agglomeration	Enables continuous addition of fillers and uniform mixing
Vacuum degassing	Required to prevent bubbles from affecting sealing performance	Required to prevent air bubbles that could reduce strength
Packaging	Rigid tubes, sausage bags, and drums	Drum, canister, or two-component metered packaging

Silicone Sealant Production Line Equipment Configuration

Base material dispersing mixer
High viscosity pump
Storage tank
Heating system
Vacuum system
Triple shaft mixer
Hydraulic discharging machine
Cooling system
Filling machine
Oven

triple shaft mixer

PU Glue Production Line

Double planetary mixer
Metering and mixing unit
Liquid metering system
Dehydration system
Vacuum system
Filling machine

double planetary mixer

Product Performance and Application Differences

Comparison Items	Silicone Sealant	PU Glue
Main Features	High and low temperature resistance, excellent weather resistance, and excellent elasticity	Strong adhesion, high strength, and excellent abrasion resistance
Curing Conditions	Cures at room temperature or in humidity	Moisture or two-component chemical cure
Main Applications	Building sealing, electronic potting, glass curtain walls, solar panels	Automotive interior, wood bonding, structural adhesive, shoe adhesive
Color and Appearance	Available in transparent, white, black, and more	Yellow, brown, or transparent

Why Choose JCT's Production Line Turnkey Project?

Professional reaction and mixing system design for different rubber types.
Optimize the selection of triple shaft mixer, double planetary mixer, and other necessary equipment based on material viscosity and reaction characteristics.
Support fully automated dosing, metering, and packaging systems.
Complete turnkey project support: from equipment design, manufacturing, installation, to formulation and process support.

Unveiling The High Performance Secrets Of Silicone Adhesive

+86 18138373963

+86 18138373963

+86 18138373963

jctben@mixmachinery.com