Model Description
This is a threaded cap for sealant in an aluminum cartridges to prevent dry-out. Once the cartridge is opened, this cap can be securely screwed onto the nozzle opening to help prevent the contents from drying out between uses. Designed for a snug, leak-resistant fit, it extends the usable life of partially used sealant tubes and helps reduce waste.

Design Concept
The cap is designed to match the thread pattern found on standard sealant aluminum cartridges. Its simple yet functional form makes it easy to print and practical in use. Ideal for professionals and DIYers alike, this solution offers a reusable alternative to single-use plastic caps or improvised seals. Print in PETG or ABS for added durability and chemical resistance.

Tested on SIKA and SOUDAL aluminum cartridges but should also fit all 300/310ml aluminum cartridges i.e FB, 3M, Hylomar, Alcolin, Stanley etc.

This remix was inspired by @Big B (A cap for silicone/acrylic cartridge)

Print Settings

PETG/ABS/SBS
0.2mm layer
4 walls
30% infill

No supports required

Recommended ironing on all top layers. (To ensure smooth surface for sealing)

Cap for Sealant in Aluminum Cartridge

PETG 0.2mm layer, 4 walls, 30% infill

0.2mm layer, 4 walls, 30% infill