Permatex Anti-Seize Lubricant, 8 oz

Brush a thin coat onto fastener threads before assembly. The aluminum and graphite flake stay behind after heat cycles and prevent thread fusion — rated to 1600°F, which covers nearly every daily-driver exhaust and engine-bay application. Brush-in-cap jar gives controlled application; close the lid and the paste stays workable across multiple service jobs. The #2 rank in Automotive Anti-Seize on Amazon and a government NSN confirm long-established broad use.

Best for DIY and pro service on spark plugs, exhaust hardware, brake calipers, and lug nuts on typical vehicles. Aluminum formula is the mildest, most broadly compatible choice — no Prop 65, no copper-on-stainless concerns. Skip it if you need 2000°F+ for turbo housing or track work; reach for a nickel-based product instead.

The SDS §2 signal word is DANGER: H332 (acute inhalation Cat 4) and H350 (carcinogen Cat 1B) both trace to the refined paraffin oil carrier under OSHA HCS/IARC conventions — not to the metal flake. These are occupational standards for petroleum fractions; applying a few grams to threads in an open garage is far removed from that exposure scenario. SDS §15 explicitly states no Prop 65 chemicals. The paste stays on fasteners with no drain pathway; aluminum flake carries no aquatic-toxicity classification.