Introduction:
- DELO ML 5249 is a sealing glue for all types of bolt-nut threads, low viscosity, blue color, high mechanical properties, and chemical resistance;
- DELO ML allows high-temperature resistance, curing quickly under anaerobic conditions when contact with metal ions;
- Ingredients: one component adhesive, derived from the modified methacrylate ester, non-solvent;
- Compliant with RoHS directive 2015/863/EU.
Applications:
- Coating for all screws, vacuum sealing of threaded joints, for air supply pipes,…;
- Specialized for sealing bolts, screws, threaded protection;
- When determining the tightening torque considering the frictional torque of the screws, the following total frictional torques can be used for the calculation: μ total 0.10 to 0.13 on blank stainless steel screws, μ total 0.13 to 0.17 on phosphated stainless steel screws;
- Low strength for easy to remove adhesive;
- Range of temperature to use: 600C ~ 1800C, (Depended to the certain application may be other limited);
- The surface to bond must be clean, no dust, grease as well as other contaminations, use DELOTHEN cleaner to best bonding.
Curing:
- Anaerobic curing at room temperature, under metal surface catalyst, initial curing after several minutes and finally cured within 24h;
- The curing may be assisted by heat addition or activator as DELO-QUICK,…
Technical data:
- Color: blue, prefer clearance: 0.05 ~ 0.1 transperant up to 0.4 mm if heat addition or be activated;
- The gap distance when applying heat or condensative activator: up to 0.3~0.4 mm;
- Density: 1.1 g/cm3;
- Viscosity: 1000 mPas, thixotropic;
- Curing time until initial strength, at 23oC, anaerobic:
+) on zinc phosphated screw: 5~20 min;
+) on V2A steel screw: 5 min;
- Curing time until final strength: 24h;
- Off-toque: +) without M(on): 18 Nm;
+) with M (on) =46 Nm: 50 Nm;
- Compression shear strength: 15 MPa;
- Compression shear strength after 1 hour cured: ~2 MPa;
- Chemical resistant: very good;
- Storage life: 12 months, at room temperature (max. 25oC), with unopened original cardtrige up to 600 ml.
For more information, please contact us.
HUST is proud to be the exclusive distributor of adhesive products, dispensing, adhesive curing systems, and technology transfer from DELO in Vietnam!
