518 Gasket Eliminator Flange Sealant
Tube · US · manufacturer-sourced
How long does Loctite (Henkel) 518 Gasket Eliminator Flange Sealant take to dry?
Short answer
Gasket-sealing stages
Assemble, wait, then fill and pressurize
- Apply the Tube to clean, dry flanges
- Assemble within the stated time
- Fill and run only after the stated cure
This product’s stated stages
- Safe to handle25 minutes
Worth noticing: The manufacturer states only one timing here (safe to handle, 25 minutes); nothing else is inferred.
Common mistake: Adding fluid or pressure before the gasket has cured; leaks follow.
Bond-strength path
Assembly, handling and full load are different stages
Time the gasket cure
Your countdown
Stated times
- Safe to handle25 minutes
From Loctite (Henkel) product page · checked 2026-10-25. Anything not listed isn’t stated by the manufacturer.
Manufacturer website: loctiteproducts.com
Conditions & fine print
- Stated conditions: Not stated by the manufacturer
- Anaerobic cure: it cures on inactive surfaces without primer, but cure can be slow on passive metals or below 5°C (41°F), where Henkel recommends an activator. Fixture time is not full cure and the page lists no full-cure time.
- Region US. Formulas can differ between countries; check your container.
- Safe to handle: The source gives no conditions for this time.
- Entered from the cited manufacturer documentation. Check the current label for the exact formula and region. Report outdated information
- Actual results depend on preparation, thickness, ventilation, temperature, humidity, mixing and substrate.
Confirm this is your product
Closely named formulas, colors and regional versions can use different times. Match these details to your container before starting a countdown.
- Exact listing
- Loctite (Henkel) 518 Gasket Eliminator Flange Sealant
- Variant
- Tube
- Region
- US
- Listed use
- flange sealant, gasket maker, engine
- Timed stages recorded
- handle
- Source checked
- 2026-10-25
Documentation: Official product page · Henkel product page; checked 2026-10-26
Condition attached to the stated time: The source gives no conditions for this time.
About this product
518 Gasket Eliminator Flange Sealant is a gasket makers product from Loctite (Henkel), listed for flange sealant, gasket maker, engine. Its times are stated under: The source gives no conditions for this time.
Using this specific product
Loctite (Henkel) 518 Gasket Eliminator Flange Sealant is listed here as the Tube version for flange sealant, gasket maker, and engine. For using this product, the useful question is not simply whether the surface looks finished—it is whether the exact next-action milestone shown above has been reached.
Before you start
- Confirm the package says Tube; related versions can use different timing.
- For flange sealant, gasket maker, and engine, pay particular attention to the exact variant, preparation and environmental conditions.
- The source gives no conditions for this time.
How to check readiness
Check the real material or treated area at the slowest location before the next step. Lift or move the item gently and avoid twisting the bond or pressing finished faces together.
Avoid this mistake
The first visible change is not always the manufacturer’s final-use milestone.
Questions
How long does this product take to dry?
Loctite (Henkel) states: Fixture time is 25 minutes on steel. Conditions: The source gives no conditions for this time.. These are the manufacturer’s stated times, not a guarantee.
What conditions do the stated times for 518 Gasket Eliminator Flange Sealant assume?
Stated conditions: The source gives no conditions for this time. Cooler, damper or thicker applications usually take longer.
What affects how long this product takes to dry or cure?
Anaerobic cure: it cures on inactive surfaces without primer, but cure can be slow on passive metals or below 5°C (41°F), where Henkel recommends an activator. Fixture time is not full cure and the page lists no full-cure time. Follow the product label for your conditions.