Practical Guide
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Graco 1:1 AGP-S100 25E001 for Silicone
Technical specifications, recommended basic settings, safe workflow, troubleshooting, and maintenance for daily production.
1:1 System
20 l / 20 l
For Silicone
Curtainwall & Insulating Glass
Why This System is Relevant in Practice
The Graco ExactaBlend AGP-S100 was developed for the precise dosing of two-component sealants and adhesives in applications such as glass facades, insulating glazing, and similar processes. The focus is on a stable mixing ratio, reduced material waste, clean calibration logic, and reproducible quality during ongoing operation.
Important for practice: The values mentioned in the manual and product documents are to be understood as technical starting points. Depending on the material, viscosity, temperature, hose package, and applicator, you should approve and document these values with your specific material before starting series production.
Product Overview
| Area | Specification | Practical Benefit |
|---|---|---|
| Model | Graco 1:1 AGP-S100, 25E001, 20 l / 20 l | Compact S100 design for silicone applications with a clear 1:1 orientation. |
| Typical Uses | Curtainwall, insulating glass, structure-related 2K sealing processes | Clean, reproducible beads and lower risk of subsequent rework. |
| System Advantages | On-ratio monitoring, automatic shut-off for off-ratio, simple base purge, data/alarm display | Less scrap, faster troubleshooting, and better process reliability. |
| Technical Basis | Max. working pressure up to 21 MPa / 207 bar, min. flow rate 1 kg/min, power range 90–264 VAC | Robust reserve for industrial 2K dosing with clean supply and correct calibration. |
KPI 1
1:1
Model focus of this system for silicone in 20/20-liter format.
KPI 2
1 kg/min
Minimum flow rate as a technical guideline for 1:1 operation.
KPI 3
21 MPa
Maximum working pressure as the technical upper limit of the system.
Practical Tip: After flushing and before the first production batch, perform a calibration check using two separate containers on two separate scales. Work with gram units and check the A/B deviation not only on the display but also against the actually weighed result.
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Recommended Basic Settings (Guidelines, verify based on material and revision)
| Parameter | Guideline Value | Note |
|---|---|---|
| Inlet Air Pressure | 6.0–7.0 bar | Technical supply range of the system. |
| A-Side during initial flush | 0.7 bar start value | Subsequently increase only until a stable material flow is achieved. |
| Max. A-Side during initial build-up | not over 25 psi / approx. 1.7 bar | Applies until a uniform flow is reliably present. |
| Fluid Regulator | 40 psi / 2.8 bar | Mentioned in the manual for flushing and calibration steps. |
| Air Motor Regulator (Calibration/Startup) | 70 psi / 4.8 bar | Guideline value for MD2 or Ultra-Lite with flexible mixer. |
| Alternative for Ultra-Lite Tri-core | 85 psi / 5.9 bar | Relevant only for corresponding Tri-core configurations. |
| Calibration Shot | 400 g | For ratio comparison using separate weighing containers. |
| Power Supply | 90–264 VAC, 50/60 Hz, 1~ | Check fuse protection and connection before commissioning. |
Professional Workflow in 6 Steps
- Prepare Material: Insert containers correctly, check material condition, and ensure supply, air, and electrical connections are properly set.
- Start Regulators Low: Before switching on, turn back all air regulators, open main air, and start the A-side with low pressure initially.
- Flush Lines: Run A-side and then B-side into a waste container until material exits bubble-free and consistently.
- Calibrate: Open the calibration function, zero separate containers on separate scales, and perform the 400g shot for ratio comparison.
- Check Dispense Setup: Mount mixer or nozzle, check status on the display module, and only proceed to production once a stable "OK" state is reached.
- Secure Production: Monitor alarm messages, flow values, material consumption, and possible pressure shifts during the shift – especially after material changes, hose changes, or long idle times.
Troubleshooting: 4 Typical Sub-problems
1) No Material Flow
- Check if material supply, solenoid/V/P function, and motor pressure are present.
- Check static mixer, Tri-core, or hose mixer for blockage and replace if necessary.
- Clean restrictor and flowmeter or replace defective components.
2) High/Low Ratio Alarm
- Recalibrate the machine and then verify the ratio comparison again using scales.
- Check material supply from base and catalyst sides for sufficient, stable flow.
- In case of pressure imbalance, check restrictor pin and hose sizing.
3) Uneven or Unbalanced Pressures
- Check ball/seat in the fluid regulator and clean or replace if necessary.
- Check restrictor housing and pin for correct seating.
- Match catalyst hose size and restriction so that pressures balance cleanly.
4) Catalyst Side Not Running Cleanly
- Open ball valve and check air supply to the B-side.
- Clean restrictor housing, pin, gun nose, and injector housing if applicable.
- If leakage persists, check and replace packings, O-rings, or power valve.
Maintenance: The 5 Most Important Points
- Regularly check the catalyst filter assembly to detect crystallization early.
- Keep the calibration check assembly outlets clear and clean.
- Inspect restrictor housing and pin assembly weekly and clean if necessary.
- Check TSL level and packing nuts; tightening must only be done when depressurized.
- Weekly inspection of filters, seals, and the overall sealing condition of the system.
FAQ about Graco 1:1 AGP-S100 25E001
What applications is this system intended for?
Primarily for dosing two-component sealants and adhesives in glass facades, insulating glass, and similar glazing processes.
How do I check if the mixing ratio is actually correct?
Via the calibration check using two separate containers on two separate scales and comparing the weighed A/B ratio with the display reading.
Which pressure values should I monitor at startup?
Standard manual guidelines are 6.0–7.0 bar inlet air pressure, 2.8 bar fluid regulator, and 4.8 bar air motor regulator for MD2/Flex configurations. Always cross-check these values against your specific material.
What is a common reason for Off-Ratio messages?
Typical causes are pressure imbalances, unsuitable restriction on the B-side, clogged flowmeters, or changes in flow between two dispense operations.
What should happen after the end of a shift?
Relieve pressure, shut down cleanly, clean the dosing unit, and – if required – mount the nightcap. This reduces the risk of curing and startup problems the next day.
Conclusion
The Graco 1:1 AGP-S100 25E001 is a practical dosing system for silicone when a stable mixing ratio, clean calibration, and reproducible quality are the priorities. Success in daily operation depends less on isolated maximum values than on a clean startup process, a documented calibration check, appropriate restriction on the B-side, and consistent maintenance. Mastering these points significantly reduces scrap, rework, and unnecessary downtime.
