LOCTITE® 554 refrigerant thread sealant

High-strength red sealant for refrigerant fittings, not a general hydraulic grade.

Thread sealants

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Pack sizes: 10 ml · 50 ml
Temperature range: −54 to 150 °C
Country of origin: China
Recommended Primer: LOCTITE® SF 7088, LOCTITE® SF 7649 or LOCTITE® SF 7471
Viscosity: 2,500 mPa·s
Curing time: Full cure 24 h

Typical uses

Refrigeration fittings
Refrigerant systems

Red, high-strength refrigerant thread sealant. Pressure rating 10,000 psi. Do not treat it as a general-purpose hydraulic sealant. Sourcebook lists CFIA. Figures follow the LOCTITE Adhesive Sourcebook 2024. Confirm the current TDS before sign-off.

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Technical specifications

Colour	Red
Duty	Refrigerant fittings
Pressure (chart)	10,000 psi
Country of origin	China
Recommended Primer	LOCTITE® SF 7088, LOCTITE® SF 7649 or LOCTITE® SF 7471