- water base surface hardening agent
SAND BARRIER(spray over the green sand mold)
-
- water hardening agent
- undiluted solution use, ready to use
- water base,@dehydration prevention
- Purpose
- SAND BARRIER is water base surface hardening agent to prevent dehydration on the surface of mold.
SAND BARRIER will create the ultrathin film of the special polymer on mold surface, which will raise the moisturizing effect and improve the airtightness of sand mold.
- Characteristic
- 1. SAND BARRIER coat and moisturize the surface of sand mold surface , which will prevent the sand collapse, peeling or inclusion.
2. The sand mold surface is coated and casting surface will be smooth.
3. If the SAND BARRIER is coated on mold wash surface, it will prevent exfoliation of mold wash.
4. Powder is not contained and no precipitation or nozzle clogging.
- Packing
- 18 KG Can
200 KG Drum
- Property
-
| Appearance | Transparent liquid |
| Density15@g/cm3 | 1.014 |
| pHLiquid concentrate | 9.3 |
| |
- Composition
-
| Special polymer | 3 ~ 7 % |
| Rust preventive agent | 0.5 ~ 3 % |
| Water | 90 ~ 96 % |
| |
- Efficiency test
- 60g green sand had been hand pressed and been column shaped (∅45X50) and coated 5g SAND BARRIER. Kept for 24 hours at 20 indoor,Put the wet filter paper on the surface and observed the adhesion condition of green sand to the paper.
Treated by SAND BARRER: Non treated
Almost no adhesion: Adhesion is seen fully on surface
- How to use
- 1. Spray with airgun spray over the surface of green sand mold.
2. There is no fixed volume but if the spray covers the surface, it is enough.
3. Sand Barrier will coat the green sand mold surface,which prevent dehydration of the sand and make the sand surface smooth.
4. In result, the casting surface will be smooth.
