CarCareTruth Score
Mediocre, but wear gloves and ventilate.
Priced as of June 6, 2026
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Prices may varyAbout this product's hazards. This product's Safety Data Sheet uses signal word danger. Read the manufacturer's SDS and follow all safety instructions before use. CarCareTruth ratings translate the manufacturer's safety sheet. They do not replace the SDS or substitute for a hazard assessment specific to your task.
Health score is for adult use as intended, per the manufacturer's SDS. It does not model child ingestion, accidental spill cleanup, or off-label use. See the safety panel below for full hazard classification, and /disclaimer for the full editorial scope.
GHS hazard codes are quoted from the manufacturer’s Safety Data Sheet. PPE tiers below translate those codes and the listed ingredient chemistry; they are not CarCareTruth recommendations.
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From the manufacturer’s Safety Data Sheet, Section 8
“No H319 or H318 in SDS §2 mixture classification. Brush-flick splash is the realistic trigger during application of a sticky paste with a cap-integrated brush.”
— Never-Seez
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“H317 skin sensitizer (nickel 7-13% in SDS §3) confirmed in SDS §2 mixture classification. Nickel is a well-documented Type IV delayed-hypersensitivity allergen. Required tier set to satisfy the DANGER signal-word PPE rule and the H317 nickel sensitizer chemistry.”
— Never-Seez
U.S. regulatory standard
29 CFR 1910.138(a); 1910.132(d)
“appropriate hand protection when employees' hands are exposed to hazards such as those from skin absorption of harmful substances.”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“Paste format with no inhalation pathway during normal application. H372 STOT RE Cat 1 is the repeated-occupational-exposure classification, not a single-use application hazard. No H334 or H335 in SDS §2. Elevated-temperature trigger applies when fastener heats on first cycle.”
— Never-Seez
U.S. regulatory standard
29 CFR 1910.134; 1910.138; 1910.1000
“Each employer shall assure that no employee is exposed [in excess of the PEL]…”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
UN GHS hazard statement
H372“Causes damage to organs through prolonged or repeated exposure”
UN GHS Rev. 9 (2021)
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
No PPE specified in published sources for ventilation. Absence does not imply “not needed” — consult the full Safety Data Sheet.
PPE tiers translate the manufacturer’s SDS and U.S. regulatory standards. Not professional safety advice. How we report safety.
This product ranks #6 of 6 in Anti-Seize Compound.Three above it ↓
Last reviewed June 7, 2026
TL;DR Nickel/moly paste for stainless fasteners and copper-prohibited applications, rated to 1500°F. DANGER signal word from H317 (nickel skin sensitizer), H351 (suspected carcinogen), and H372 (organ damage) at mixture level. Wear gloves.
Never-Seez Blue Moly is a nickel/moly paste for stainless fasteners, food-adjacent assemblies, and industrial jobs where copper anti-seize is prohibited. Brush a thin coat on threads using the built-in cap brush; the blue pigment lets you confirm coverage visually. Solid anti-galling protection on high-load threads; strong field record in HVAC and industrial/MRO use. The 1500°F rating covers most routine hardware but falls short of the 1600°F threshold for demanding exhaust and turbo work.
Good fit for stainless fasteners, food-processing equipment, and assemblies where copper contamination is prohibited. Skip it for exhaust manifold studs or turbo hardware: the 1500°F rating falls short, and Permatex 77124 (2400°F rated) is the right choice there. For most non-stainless hardware, Permatex 81343 Silver Grade (aluminum-based) handles the job with a cleaner health profile.
DANGER from H317 (nickel skin sensitizer), H351 (suspected carcinogen Cat 2), and H372 (STOT RE Cat 1) in SDS §2. Nickel is a documented allergen; buyers with nickel sensitivity should choose aluminum-based anti-seize. Prop 65 nickel-carcinogen disclosure applies. Wear gloves. Lung protection is situational; no inhalation pathway in normal paste use. VOC 0 g/L. Nickel is a CWA Priority Pollutant; petroleum carrier is non-biodegradable.
The Safety Data Sheet for Never-Seez NBBT-8 Blue Moly Anti-Seize Compound carries a DANGER signal word, with classified hazards including H317 (may cause an allergic skin reaction); H351 (suspected of causing cancer); H372 (causes damage to organs through prolonged or repeated exposure). The Amazon listing also carries a California Prop 65 warning. See the PPE breakdown above for use-case-specific guidance translated from the SDS hazard codes.
CarCareTruth scores Never-Seez NBBT-8 Blue Moly Anti-Seize Compound at 5.2 out of 10 on the composite CCT score, with a health sub-score of 2.5/10. The CCT score blends real-world effectiveness, ingredient health impact pulled from the manufacturer's safety sheet, and environmental footprint against a published category rubric. See the methodology link on this page for the full scoring breakdown.
Per the Safety Data Sheet ingredient disclosure: SDS §3 (Revision 3, 28-Apr-2025): Nickel (CAS 7440-02-0) 7-<13%; Molybdenum(IV) sulfide / MoS2 (CAS 1317-33-5) 5-<10%; Ferrate(4-), hexakis(cyano-C)-, ammonium iron(3+) (1:1:1), (OC-6-11) / ammonium iron cyanide (CAS 25869-00-5) 5-<10%; Zinc oxide (CAS 1314-13-2) 1-<5%; Aluminum (CAS 7429-90-5) 0.1-<1%. Carrier: lithium soap grease (per TDS thickener type; proprietary base not in SDS §3).
Marketing copy from Never-Seez, via Amazon. Not editorial.
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