DAG 633 Insulating/Lubricating Mold Coating is specifically designed to provide both an insulating and lubricating coating for applications such as low pressure casting and permanent mold casting. combining lubricating and refractory pigments, DAG 633 provides a very durable coating. This mold coating promotes superior solidification, metal flow characteristics, and mold release properties. DAG 633 will not stain, is resistant to aluminum and magnesium adhesion, and can withstand temperatures up to 2000 F. The fine texture improves casting surface finish while proving excellent insulation — 10.3W/mk thermal conductivity value at 2 mils. Available as a 5 gallon concentrate.
DAG 633 concentrate should be diluted for most applications. Mildly agitate the concentrate with a mechanical mixer prior to dilution. While stirring the mold coating, slowly add water until the desired dilution is achieved determined by your particular application. Typical ratios will vary from 1:1 to 1:5 (mold coat : water). Periodic agitation should be maintained.
DAG 633 should be applied to mold surfaces free of dirt, oil, grease, and previous coating. Preheat mold to approximately 350F, and apply mold coating in thin multiple coats with a good quality spray gun using air pressure of 35-50 psi. Allow coating to air dry for 20 minutes before use.
Mold coating should be protected against freezing temperatures at all times. Severe freezing may cause coating to take on a granular appearance and settle.