Pegasus is your source for dependable Loctite Products!
Check us out on Instagram
Shop With Confidence - 30 Day Easy Returns - No Need To Call
Follow us on facebook

Loctite Gasket Maker 515 Flange Sealant, 50 ml Tube

Click for a larger picture of Loctite Gasket Maker 515 Flange Sealant, 50 ml Tube
View Catalog Page in PDF format

Brand: Loctite Products

Loctite® 515™ Gasket Eliminator® Flange Sealant creates a flexible, formed-in-place gasket. Recommended for use on machined, rigid metal flanges without defects. Seals up to 0.015" gap to eliminate the need for paper, rubber, or cork gaskets. OEM approved and specified (use in applications where 515™ or "anaerobic gasket" are specified). Not recommended for use on plastics. 50 ml tube.

Loctite® 515 vs RTV Silicone
Comparison Loctite® 515 RTV Silicones
Benefits Long working time,
fast cure time,
does not shrink while curing
High gap filling,
high temperature range
Limitations Limited filling,
low temperature range
Short working time,
long cure time,
shinks while curing
Cure Method Anaerobic
(cures when deprived of oxygen)
(Room Temperature Vulcanizing)
Full Cure Time* 24 to 72 hours* 1 to 7 days
Gap Fill* 0.001" to 0.015" 0.001" to 0.125"
-40°F to +300°F -60°F to +400°F

*Without primer. Preparing surfaces with Loctite 7649 Primer N Surface Activator (Part No. LT-37509, sold separately) can cut the cure time of Loctite® 515 to about 2 hours and increase the gap filling ability to 0.050".

Part No.
Stock Status

Condition: New

In Stock
Related Product Groups
Loctite Products