Diesel Exhaust Fluid DEF Thread Sealant With Brush Quarter Pint Built To Last Sealant For DEF Lines Withstands Minus Fifty To Four Hundred Fifty Degrees Chemical And Alkali Resistant Durable Sealant For High Temperature And Pressure Plumbing

DEF thread sealant with brush for high-temp lines
✔️ 1/4 pint brush sealant; -50°F to 450°F; up to 10k psi

This quarter-pint DEF thread sealant comes with a convenient brush applicator and is designed to seal threaded connections in diesel exhaust fluid lines. It’s ideal for SCR system piping and other DEF plumbing in automotive and industrial equipment, delivering reliable, durable seals under demanding conditions.

✅ Excellent chemical resistance to DEF and various acids/alkalis
✅ Wide temperature range from -50°F to 450°F; handles high pressure up to 10,000 psi for liquids and 3,000 psi for gases
✅ Works on NPT threads and is compatible with aluminum, brass, copper, stainless steel, and many plastics
✅ Water-resistant with a 1-year shelf life for reliable storage
✅ Easy application with a brush applicator; sets in 5-10 hours

💡 What is a DEF thread sealant used for in diesel exhaust fluid lines? This handy sealant helps secure threaded connections in DEF piping and SCR systems. - Handy for tight alignment and leak-proof seals - Works with metal and compatible plastics on NPT threads - Brush applicator enables quick, clean application - Offers strong chemical resistance to urea-based DEF