Quick dry surface hardening agent(spray over the sand mold)
SAND BARRIER TA
Alcoholic surface hardening agent
read to use
Quick dry surface hardening agent
Characteristic
EAlcoholic surface hardening agent EEthanol, eco friendly solusion is used. EHigh fire-resistant resin is used. EPrevent the sand collapse.
Sand Barrier TA is quick dry surface hardening agent to prevent the collapse of surface of green sand mold. This is composed with high fire-resistant resin, which control generation of gas while casting.
Property
Appearance
Dark red color
Voscosity/25
8`15mPAEs
Specific gravity/25
0.82`0.94
Flash point
13
Composition
Special heat-resistant resin
8-12%
Alcohol
88-92%
Can adjust the resin density to customer's requirement.
Efficiency test
Test A: Hand press the green sand to column shape and paint 5g of Sand Barrier TA. Keep the column shaped green sand at at room temperature 25 degrees Celsius and wait for 30 minutes. Checked the surface hardness with a scratch hardness-meter. @Painted by Sand Barrier TA No damage @No Sand Barrier TA @@@@@@ Needle scoops out the surface deeply
Test B: Hand press the green sand to column shape and paint 5g of Sand Barrier TA Spray. Keep the column shaped green sand at at room temperature 25 degrees Celsius and wait for 30 minutes. Pushed the moistened filter paper to the columnar face and observe an adhesion state of the sand to a filter paper. @Painted by Sand Barrier TA No damage @No Sand Barrier TA @@@@@@@ Sand adhered to the entire surface