High-strength threadlockers are suitable for permanent assemblies using large fasteners. They require heat and a hand tool to release the bond and remove the fastener. These threadlockers are used in applications with more vibration such as in engines and machinery and are identified by the color red in their packaging and in their dispensed substance. A primer is required when applying to fasteners made of inactive metals such as stainless steel, aluminum, and coated or plated metals.

These primerless high-strength threadlockers can be applied directly to all metals without the need for a primer. They are especially useful on inactive metals that normally require a primer such as stainless steel, aluminum, and coated or plated metals. They are suitable for large fasteners in permanent assemblies. They require heat and a hand tool to release the bond and remove the fastener. These threadlockers are used in high-vibration applications such as in engines and machinery and are identified by the color red on their packaging and in their dispensed substance.

These removeable high-strength threadlockers require only a hand tool to release the bond and remove the fastener. They are used in applications with more vibration such as in engines and machinery and are identified by the color orange in their packaging and in their dispensed substance. A primer is required when applying to fasteners made of inactive metals such as stainless steel, aluminum, and coated or plated metals.