Feature: Furan resin is a general name of polymer which is used furfural as based raw materials. All macromolecule of furan resin contain furan ring. No-bake/self-hardening furan resin is an environmentally friendly product that reaches international advanced level. Furan resin is suitable for all kinds of iron casting, steel casting and non-ferrous casting. As usual, the furan resin appear pale yellow to brownish red liquid. To use furan resin as sand mold binder for casting, it always has below advantage:
1) Lower viscosity of furan resin that is convenient to measure and easy to mix with sand. And the sand mold is also in good mobility.
2) Lower free formaldehyde content with less smell that improve workers’ working condition, and reduce pollution of environment.
3) High strength of furan resin that can reduce the cost by using less resin while also can improve quality of casting.
4) Good mobility of sand mold that reduce the workload of clean sand.
5) The casting produced by furan resin is in precision size, shape edge, smooth and clean surface.
6) It can control the curing speed of furan resin by adding the quantity of curing agent.
Common type and main technical index of furan resin:
|
Model |
Nitrogen content（%） |
Free formaldehyde (%) |
Viscosity（25°Cmpa. s） |
Specific gravity (g/cm3) |
Recommend applications |
|
HFF900 |
Free |
≤0.2 |
≤25 |
1.15-1.25 |
Large steel casting, large carbon steel castings |
|
HFF905 |
1.0 |
≤0.2 |
≤25 |
1.15-1.25 |
Medium-sized steel castings, large carbon steel parts |
|
HFF906 |
1.8 |
≤0.2 |
≤25 |
1.15-1.25 |
Carbon steel and high grade large ductile iron casting |
|
HFF907 |
2.5 |
≤0.3 |
≤25 |
1.15-1.25 |
Large ductile iron parts, large grey cast iron |
|
HFF801 |
≤3.0 |
≤0.2 |
≤25 |
1.15-1.25 |
High grade of nodular iron castings, large grey cast iron |
|
HFF802 |
≤4.0 |
≤0.2 |
≤25 |
1.15-1.25 |
High grade of ductile iron castings, grey cast iron |
|
HFF803 |
≤5.0 |
≤0.3 |
≤25 |
1.15-1.25 |
Small and medium sized ductile iron, large grey cast iron |
|
HFF804 |
≤6.0 |
≤0.4 |
≤30 |
1.15-1.25 |
Small and medium-sized grey iron castings, cast copper parts |
|
HFF805 |
≤7.0 |
≤0.4 |
≤35 |
1.15-1.25 |
Small size grey iron castings, cast copper parts |
|
HFF701 |
≤3.0 |
≤0.3 |
≤35 |
1.10-1.20 |
large size ductile iron castings of machine tool, SG iron parts |
|
HFF703 |
≤5.5 |
≤0.4 |
≤40 |
1.15-1.25 |
large size grey iron castings of machine tool |
|
HFF705 |
≤7.0 |
≤0.5 |
≤45 |
1.15-1.25 |
large size bronze art work casting, aluminum statue, brass sculpture |
|
HFL105 |
Free |
≤0.25 |
≤25 |
1.10-1.20 |
Steel casting parts for high speed train, |
|
HFL114 |
≤3.0 |
≤0.30 |
≤30 |
1.15-1.25 |
Large wind turbine generator hub and base casting parts |
|
HFF3D1 |
≤1.0 |
≤0.2 |
≤20 |
1.10-1.15 |
3D print use furan resin for sand moulds |
Furan resin use parameter:
Sand: furan resin: curing agent = 100 (0.8-1.5): (0.3-0.8) (weight ratio)
As usual, the furan resin should add 0.8%~1.5% of sand weight, and the curing agent always adds 30%~80% of furan resin weight.
Considerations:
1. Firstly, use continuous system or sand mixer to mixing sand and curing agent. Then add furan resin to mix. The time of mixing sand always is 5s-60s. It should be used immediately after the sand mixing well.
2. Use matching with the curing agent produced by our company for furan resin will be better.
3. The furan resin is unfit to mix with acidic substances (such as curing agent) directly, preventing leakage and dangerous.
4. The furan resin should be stored in a cool place, away from the fire source, preventing heat or sunlight.
Quality guarantee period of furan resin: 12 months
Package:
