Application Suitable for a wide spectrum of castings, also for large structural and heavy parts. Die temperatures: from about 150 to 380 °C.
The ultimate or ideal dilution ratio for a particular casting is determined by: duration of spray, spray velocity, geometry and complexity of casting as well as the temperature of the tooling. On-site tests should therefore be carried out to establish the correct ratio for each particular application. RLT-7730 is available in several concentrations, each of them will dissolve in water instantly. Prior to use, RLT-7730 must be diluted with water. Thereafter the diluted product should not be stirred in order to prevent foaming. Do not use air agitation. Immediately after use, the containers with the release agent concentrate must be closed tightly.
The good release effect is guaranteed by the spontaneously forming of a water-repellent film on the die surface. The film adheres well, wherever it is applied and will not be washed off by during application nor blown into outlying parts of the die: Therefore gas entrapment and streaks due to release agent accumulations can be mostly prevented. Even after many weeks in use, no sticky residue will form on die and frame, pipes of spray systems and nozzles will never block. Core slides and vents will stay clean, allowing air and gas to escape unhindered thus improving the quality of castings (reduced porosity).
Recommended dilution ratios with tap water
Product Aluminium and Magnesium
RLT-7730 1 : 250-300
Properties and Advantages ·
Castings are well suitable for joining processes like welding and glueing ·
excellent paintability and powder coating ability of castings ·
tried and tested on conventional-, reduced-, as well as micro-spraying ·
good die release and good lubrication of ejector pins ·
effective reduction of "metallization" (metal-on-metal welding) ·
excellent and shiny surfaces of castings ·
high process reliability (stable emulsion, no separation, no stirring required)
clean die frame and environment; no clogging of pipes and spray nozzles
Chemical and Physical Data Appearance:
White emulsion Odour: characteristic
Density at 20 °C: 0.96 – 0.98
PH-value at 20 °C: 7 - 9
Shelf life: min. 6 months,
if stored correctly (for further details see Safety Data Sheet)
