Loctite 577 is meant for locking and sealing of metallic pipes,fittings and threaded assemblies. This acrylic sealant offers a perfect low pressure seal ideal for metallic pipes and fittings. These sealants are famous for not shrinking, and shredding once applied. Loctite has the best in class thermal and chemical resistance and ensures minimal liquid migration once it has been applied. Loctite acrylic sealant can withstand temperatures up to 180 degree celsius and has a maximum pressure resistance of 10,000 psi (68.9). Loctite 577 acrylic sealant works on all metal substrates, including active and passive metals,and keeps them safe from corrosion.