Filling & Capping Instructions
Follow these steps to ensure consistent fills, proper seals, and zero leaks across all Finished Goods vape hardware.
Preparation
Follow your terpene supplier’s SOPs for mixing and handling concentrates.
Start with a clean filling station, free of dust and debris.
Wear gloves and eye protection.
Heating
WARNING: Oil will flood the atomizer if its viscosity is too low. A flooded atomizer may cause clogs or leaks. If your oil runs like olive oil when hot (usually above 125°F / 52°C), flip the filled units upside down for 5 to 10 minutes so it cools and thickens before it saturates the atomizer.
Heat the oil to the lowest temperature that still lets it flow to the bottom of the device.
Use a temperature-controlled oven or hot plate. Never use a microwave or an open flame.
Record both the reservoir and dispensing temperatures for each fill.
In a cold room (around 65°F / 18°C), thick oil can stall before it reaches the atomizer.
If the oil pools at the top instead of flowing down, raise the temperature until it runs onto the atomizer.
Filling
Match the needle gauge to the device you are filling:
510 Thread Cartridges:
- 14-gauge or smaller blunt-tip dispensing needle
All-in-ones:
- 18-gauge, or check the product spec sheet for your specific model
Insert the needle to the bottom of the tank and withdraw it slowly as you fill.
Leave 1–2mm of headspace at the top of the tank for oil expansion and proper capping.
For automated filling systems (Thompson Duke, DDS, ATG Pharma, Vape Jet), consult Finished Goods for machine-specific settings, then follow the manufacturer’s SOPs.
Capping
Cap each unit within 2 minutes of filling to prevent oxidation and contamination.
When capping by hand, press the mouthpiece firmly and evenly until it clicks or seats flush.
Consult Finished Goods before using automated capping equipment.
Pressure settings vary by machine, and the wrong setting can crack the tank or ruin the seal. Most setups need a custom jig, and Finished Goods can help you design one.
Post-Fill Handling
WARNING: Do not test-fire the units until the rest period is complete. Firing a dry atomizer will permanently ruin it.
If your dispensing temperature causes the oil to run like olive oil (usually above 125°F / 52°C), store the units upside down for 10 minutes after capping. Postless devices are an exception, covered below.
The flip lets the thin oil cool and thicken before it reaches the atomizer, which prevents flooding and leaks.
You can leave the units upside down indefinitely if your workflow requires it.
If your oil is more viscous (low dilution percentage), you can skip the flip and keep the units right side up.
Postless devices (Supermini, Pod System, Pure 2) filled with low-terpene distillate or liquid diamond (around 2 to 3%) are the exception to the flip rule. Do not flip them, even if the oil ran thin while filling.
This oil turns thick as it cools, and an inverted unit can keep it from reaching the atomizer. If the oil is too thick to flow, raise the temperature instead of flipping.
Once any flip is complete, rest the units right side up for at least 36 hours before testing or packaging. This gives the atomizer time to fully saturate.
Storage & Environment
Store filled units at 65–77°F (18–25°C) in a climate-controlled environment.
Keep them out of direct sunlight and away from large temperature swings.
In hot climates or warm warehouses, store the units upside down to keep oil from oversaturating the atomizer.
Documentation & Quality Control
WARNING: Record any deviations from standard procedures for every batch.
For every batch, record:
- Oil temperature, PSI (if applicable), and fill time
- Lot numbers, operator initials, and equipment used
- Batch records for traceability and compliance
Testing New Formulations
Always run a small test batch (10–25 units) the first time you fill a new formulation.
Give the batch the full 36 hour rest before evaluating performance.
If you see clogging, leaking, or inconsistent vapor, contact Finished Goods. We can tune the PrecisionFlow™ atomizer configuration for your specific oil.
Need Help With Your Fill Process?
Our team consults 1-on-1 with every customer on filling parameters, equipment compatibility, and atomizer selection.