![](https://tryloctite-images-s3.s3.ap-south-1.amazonaws.com/images/downloadinf-icon.original.png)
![loctite Thread sealant Suited for a wide range of applications, LOCTITE thread sealants increase the reliability of threaded fittings.](https://tryloctite-images-s3.s3.ap-south-1.amazonaws.com/images/R24-0703-How-to-choose-the-right-Loctite-Thread.original.png)
To find the ideal Loctite for your thread sealing need, just answer three whats:
- 1 Substrate to be sealed
- 2 Maximum thread size
- 3 Temperature resistance
![](https://tryloctite-images-s3.s3.ap-south-1.amazonaws.com/images/loctite-542-info.original.png)
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Substrate to be sealedMetal
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Maximum thread sizeup to 3/4"
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Temperature resistance* 150°C
Additional features
- Immediate low pressure seal – 100 psi or 0.69 N/mm2
- Maximum Pressure Resistance (N/mm2)/Cure Time- 10,000 psi or 68.9 N/mm2
- Product Type- Brown Liquid
- Ideal for fine threaded fittings as used in hydraulic and pneumatic installations and small fittings in general
- Cure time for full strength: 24 hours
![](https://tryloctite-images-s3.s3.ap-south-1.amazonaws.com/images/loctite-567-info.original.png)
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Substrate to be sealed Metal (even stainless steel & aluminum)
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Maximum thread size up to 3"
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Temperature resistance* 250°C
Additional features
- Immediate low pressure seal – 100 psi or 0.69 N/mm2
- Maximum Pressure Resistance - 10,000 psi or 68.9 N/mm2
- Product type - White paste
- Ideal for tapered pipe threads and fittings, including high pressure applications
- Cure time for full strength – 72 hrs
![](https://tryloctite-images-s3.s3.ap-south-1.amazonaws.com/images/loctite-577-info.original.png)
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Substrate to be sealed >Metal
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Maximum thread size up to 3"
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Temperature resistance* 180°C
Additional features
- Immediate low pressure seal – 100 psi or 0.69 N/mm2
- Maximum Pressure Resistance-10,000 psi or 68.9 N/mm2
- Product Type- Yellow Paste
- Ideal for use on coarse, threaded components
- Cure time for full strength – 72 hrs
![](https://tryloctite-images-s3.s3.ap-south-1.amazonaws.com/images/loctite-55-info.original.png)
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Substrate to be sealed Metal, Plastic or Both
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Maximum thread size up to 4"
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Temperature resistance* 150°C
Additional features
- Instant Seal
- Maximum Pressure Resistance - 10,000 psi or 68.9 N/mm2
- Sealing Cord
*Continuous Service
**The torque required to loosen the assembly is breakloose torque and the torque needed to turn the fastener by 180° is prevail torque