Adhesives and Sealants — FAQ
What thrust ratio do I need for garage concrete crack repair?
Use 18:1 or higher for polyurethane concrete sealants. The 26:1 JES M26S excels at forcing thick material deep into cracks, while the ETS5000's 18:1 ratio handles standard 10oz tubes with less hand fatigue on large jobs.
Can I use any caulk cartridge with these guns?
All reviewed guns accept standard 10oz cartridges except the ETS5000, which fits 29oz tubes. Check cartridge dimensions—some European 300ml tubes are slightly longer. The ETS3000's revolving cradle accommodates minor size variations.
How does the dripless feature actually work?
A dual-action plunger retracts 1-2mm after each trigger release, relieving pressure on the cartridge. The ETS3000's switch disables this for continuous flow. Quality guns maintain this mechanism for 500+ tubes; cheap models fail within 50.
Metal or composite frame for garage use?
Composite resists rust from garage moisture and stays comfortable in temperature extremes. Metal offers maximum durability for contractors. For DIYers, the ETS3000's composite build provides the best balance—lightweight yet tough enough for occasional drops.
How do I clean my caulk gun after use?
Immediately wipe the push rod and cartridge cradle with a damp cloth. For dried caulk, use mineral spirits on metal parts only—composite frames can degrade. The ETS2000's smooth surfaces clean fastest. Never submerge the entire gun in solvent.
Which gun is best for sealing garage door weatherstripping?
The ETS3000 wins here—its revolving cradle lets you seal the top track overhead without twisting your wrist, and the drip-switch prevents oozing when you pause to reposition. The 18:1 ratio handles thick butyl rubber sealants common in garage doors.
