Gasketing sealants
Red, low-strength gasketing sealant for machined metal flanges
A 1-part, red, low-strength, thixotropic, acrylic gasketing compound for machined metal flanges where easy disassembly is vital.
All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.
- Description
- Technical specification
- Rating & reviews
- Question & answer
LOCTITE® 5203 is a 1-part, low-strength, dimethacrylate ester gasketing sealant for machined, rigid metal flanges requiring easy disassembly, typically gearbox and engine casings. It fluoresces under UV light – great for quality control. This red viscous, anaerobic-curing flange sealant fills gaps up to 0.125 mm and typically provides a 10-minute fixture time on steel and a 20-minute fixture time on aluminum. Its thixotropic nature makes it easy to apply and reduces sealant migration after application. LOCTITE 5203 cures rapidly when confined in the absence of air between close-fitting surfaces.
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Fluorescent under UV for quality control
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Thixotropic for ease of application
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Low strength
- Product category:
- Gasketing sealants
- Technologies:
- Acrylates, anaerobic cure
- Chemical basis / base:
- Methacrylate
- Color:
- Red
- Fixture time:
- 10.0 min. - 20.0 min.
- Gap fill:
- 0.125 mm
- Lab shear strength:
- 1.0 N/mm²
- Recommended for use with:
- Metal: aluminum,Metal: steel
- Viscosity, Brookfield - RVT, @ 25.0 °C:
- 200000.0 mPa·s (cP) - 450000.0 mPa·s (cP)
- Viscosity, Brookfield - RVT, @ 25.0 °C:
- 50000.0 mPa·s (cP) - 100000.0 mPa·s (cP)
