Appearance
Cosmetic~20 min to fixWet spots between wax and glass
Wet spots are not actually wet. They are air gaps where the wax has shrunk away from the glass. Aesthetic only, but they tank perceived quality on premium tumblers.
Written by Waxverse Studio
Why this happens
Wet spots are air gaps between wax and glass. They form when the wax contracts away from a cold or contaminated vessel wall. Not moisture, and not a fault the customer can feel, but they tank perceived quality on clear tumblers.
Likely causes
- Vessel was too cold at pour.
- Pour temperature mismatched to the wax.
- Vessel surface had residue (release agent, oil, dust).
How to diagnose
- Inspect the inside of new vessels for film or residue.
- Check pour temp logged against wax spec.
Change sheet · next batch
Fill in what you know. The change sheet below re-orders so the delta most likely to help your specific batch floats to the top.
ProcessChange
Pre-warm vessels 50°C
Warm glass holds the wax against the wall during set.
Pour tempPour cooler
Low end of range
Slower cool gives the wax time to grip the glass.
ProcessChange
IPA clean
Remove release agents and dust before pouring.
Take action
Related symptoms
- Sinkholes form around the wick after pour
Caverns under the surface as the wax contracts.