6. Plastic bases and metal die pins can be used several times if you can retrieve them. The RTP_Bases may need a light silicone spray applied to the die surface when reused. After applying spay, be sure to use a high pressure air hose on the die surface of the plastic base to remove the excess spray or you will end up with a fuzzy surface on the bottom of the stone die.
Weighing
the stone and measuring the water for each mix will help guarantee
quality and consistency. Working with the same consistency each time is
very important, as you will become proficient more quickly. You do
not want an overly runny mix when pouring the impression and coating the
pins on the base.
Caution:
Do not try to reuse a damaged die pin as they are precision matched to
the tapered hole in the RTP_Bases. Also, do not try to reuse the
plastic bases if they have too many saw marks or if the small index pins
have been damaged. Do not soak the plastic bases or mounting
plates in acetone or similar
solvent. Remove excess stone and soak in water over night, then put
parts in a sonic cleaner. This seems to be the safest way to clean parts
for reuse.
Hold
the stone models and not the plastic bases when separating the
models from the impression; this will reduce chances of separating the stone
model from the plastic base.
Note:
We rely heavily on feedback from all labs using our
products. As a result of this feedback, parts are constantly being improved.