| Physical and Chemical Properties | Chemical properties black mastic. |
| Use | Use Temperature -196~780. Performance characteristics of high temperature resistance, high bond strength, good toughness, uniform stress distribution, no thermal effect on the parts and thermal deformation. The main purpose of metal, ceramic self-adhesive and adhesive. |
pretreatment derusting and roughening, use manual or electric grinding tools to polish the parts to be repaired, remove the rust layer and make the surface layer roughened properly, use absorbent cotton dipped in Tianshan cleaning agent or acetone to clean the polished surface to remove residual oil stains, new castings without oil and water can avoid this step.
The adhesive shall be fully mixed with the curing agent in strict accordance with A: B = 2:1 (mass ratio), with the same color as well, and the applicable period is 30min.
If the glue is used for connecting structural parts, the two connecting surfaces shall be coated with a layer of glue, and then glued. After gluing, it is better to mismove several times to facilitate air removal. In close contact, the thickness of the glue layer shall not be too thick, preferably 0.1 ~ 0.2mm; If it is used to repair the cracks of the shaft and the body, appropriate mechanical strengthening measures such as core-piercing jacket and metal key shall be.
Curing at 25 ℃ for 24h can be completely cured, when the temperature is lower than 15 ℃, appropriate heating measures should be taken, which can not only shorten the curing time, but also improve the bonding strength. Bonding application of important structural parts: room temperature for 2h, then 80 ℃ for 3 h.