I went to the Noch website to find information on their Gras Master. It would appear you are building a super high intensity static applicator. Note the specs., Technical Data.
Here is some of the information.
60131 Gras-Master
Technical Data:
Input: 9V DC. battery.
Max. Operational Ampere: 10mA
Output: 15 kV DC 
15,000 volts DC.
Scenic Express detail shows 20,000 volts.
Maximum Current: 1,5mA .0015 amps
Power Supply: 9V Alkaline Battery
Battery Life Expectancy: max. 60 hours
In use operation indicated by illuminated red LED
On/Off Switch
The NOCH Gras-Master has been awarded several prizes and is the perfect tool for applying static grass on a model landscape.
Thanks to the electrostatic technique the grass fibres get electrostatically charged and will land in a vertical position on the scenery.
Easy to use:
Brush the NOCH Grass Glue, item no. 61130, to the selected area that you want to grass. Fill the white container on the Gras-Master 2/3 full with the NOCH Grass. Use the fine sieve for the short NOCH Static Grass fibres or the larger sieve for the longer grass fibres (Wild Grass, Field Grass and the Master Grass Blends). Attach the alligator clip to the landscape in the area you are going to grass. This will polarize the device. If you are unable to attach the clip, then we recommend sticking a small nail into the surface area and proceed to attach the clip. Switch on the Gras-Master and gently shake the device over the area covered with glue. Allow the glue to dry and brush off or vacuum the loose grass. You may use the loose grass again. When you complete your task, always switch the Gras-Master off.
Nozzle:
Use the included Nozzle to flock small areas e. g. you can apply long grass to even small sections. The Nozzle is also ideal for flocking areas that are difficult to reach. Two sieves are included with the Nozzle. Use the sieve with many holes (2) for the long grass fibres and the sieve with few holes (1) for the short grass fibres. Put the sieve on the Nozzle (number on the top) and screw the Nozzle on the Gras-Master. Fill the container only 1/3 full when using the Nozzle.
Contents:
Alligator Clip with Cable, 1 x Small Sieve, 1 x Large Sieve, Nozzle with two Sieves, 9 Volt Alkaline Battery (pre-installed), and 1 x Bag of NOCH Static Grass
.Summer Meadow. Item No. 08310.
Function:
The electrical circuit within the Gras-Master converts the 9V battery current into a stable high voltage reaching 15,000 V DC. The coating at the bottom of the white container is a special material that creates a negative pole carried by the grass fibres. The positive pole travels through the cable from the top of the device and releases through the alligator clip. As the fibres exit the sieve they are pulled mid-air through an electrical field allowing the grass to land in a vertical position on the
surface area.
To achieve an effective electrical field you should use glue that conducts electricity. The NOCH Grass Glue (no. 61130) is capable of performing this task.
Safety Instructions:
The Gras-Master is designed modern safety systems, however, follow these precautions.
Keep this item away from Children. Never physically touch or place a foreign object inside the white container when the device is ON or in operation.
The formation of sparks is possible during operation. Keep away the Gras-Master from flammable liquids, gas or any combustible materials during operations and storage. Make sure the item is stored in a dry area and protect it from humidity, moisture and wetness. Never use or turn on the device, if you notice moisture or wetness in or on the Gras-Master.
Remove the battery if you place the Gras-Master in storage. Do not throw your used batteries with your household waste. Dispose them according to your local environmental rules. Check your local government waste regulations, if you are not aware of the environmental rules in your area. Electrical and electronic devices do not belong in the trash!
Cleaning Tips:
Make sure the Gras-Master is turned off and battery is removed. Never change or stress the black conductive material in the white grass holder, in the Nozzle or in the two sieves 1 and 2. Do not use solvents, liquid cleaners or water to clean your Gras-Master, or it's parts! Simply use a dry towel.
Keep these instructions for reference.
Somewhere in your build instruction there should be an indication of the high voltage developed for the static charge. This voltage and the conductivity of the glue, would play a big part in how well the device works. IMO
I never had a problem using Elmer's white glue.
Best wishes with your project
Mike CT.
