Threadlockers and thread sealants will not bond to certain "inactive" surfaces including aluminum, stainless steel, magnesium, zinc, black oxide, cadmium, and titanium. The use of a primer is required on these materials to "activate" the surface for bonding. Loctite® 7649 Primer N also speeds the cure time, especially in cold temperatures and when there is a gap between the mating parts. 4.5 oz aerosol can.
Note: (HAO) = Hazardous, Air only. This item is considered Hazardous by UPS when shipped by air (3 Day Select, 2nd Day Air, or Next Day Air). A hazardous shipping charge of $37.50 will apply if shipped by air. This item cannot be sent via US Mail.