This is a two part No Bake Binder System which is composed of:
- COOLSET 5001 – Part 1 – Binder : Furfuryl Alcohol and Urea Formaldehyde Co-polymer.
- COOLSET H /301, H /501 – Part 2 – Catalyst : Aqueous solution of Aryl Sulfonic Acid.
This is a versatile No Bake chemical binder system widely used in foundries. Ferrous and Non ferrous metals can be cast using COOLSET 5001 system. It is characterized by high strengths and good collapsibility.
Feature:
- Low viscosity – resulting in efficient mixing, superior sand flow ability & compact cores / moulds
- Higher strength capabilities – resulting in lower binder addition level than that of Phenolic
- Lower addition levels – Lower incidence of gas related defects in castings
- High amenability for making flask less moulds on automated fast loop line
- Superior collapsibility – resulting in easy de-coring / shake out. Suitable for non ferrous castings
- High reclaimability – resulting in up to 100 % re-use level of reclaimed sand for mould making
- Long Shelf life – hence obviates need for cold storage even in tropical climate
Properties of COOLSET 5001:
| Appearance | Pale yellow to light brown clear liquid |
| Viscosity | 18 – 25 sec. at 30°C by B4 Cup |
| Specific Gravity | 1.120 to 1.170 at 30° C |
| PH | 6.5 to 7.5 |
| Free Formaldehyde | < 1% |
| Nitrogen Content | 2.5 – 4% |
Properties of COOLSET Catalysts:
| Appearance | Colorless to pale yellow clear liquid |
| Viscosity | 12-16 Sec. at 30° C by B4 cup |
| Specific Gravity | 1.185 -1.240 (approx) at 30° C |
Addition Levels:
This depends upon properties of cores/moulds required and sand quality used. On fresh Silica sands, COOLSET 5001 can be used at 1.2 to 1.4 % levels and on the reclaimed sand at 1% below. COOLSET H/301, H/501 Catalyst addition level can be varied between 30 to 60 % by weight of Binder depending on the strip time requirements and prevailing climatic conditions.
Catalyst Practice:
- COOLSET H/310 is a Slow Catalyst grade offering a bench life of 5 to 10 min.
- COOLSET H/510 is a Fast catalyst grade offering a bench life of < 5 min.
- Further, customized Catalyst grades can be offered to suit varying bench life needs of foundries.
Typical Sand Mix Properties:
| On washed and graded Silica sand of AFS 40 to 50 and using laboratory mixer | ||
| Addition Levels | COOLSET 5001 | 1.2 % (Based On Sand) |
| COOLSET H/301 | 40 – 50% (Based on COOLSET 5001) | |
| Mixing | 1.5 minutes x1.5 minutes (Catalyst followed by Binder) | |
| RT/RH | 25 – 35° C. / 50 -75 % | |
| Bench Life | 4 to 9 minutes | |
| Strip Time | 15 to 25 minutes | |
| Compression Strength | ||
| 1 hr | 10 – 15 Kg/Cm2 | |
| 4 hr. | 15 – 20 Kg/Cm2 | |
| 24 hr. | 25 – 40 Kg/Cm2 | |
Shelf Life & Storage:
| Resin COOLSET 5001 | 6 months from the date of manufacturing |
| Catalyst COOLSET H/ 301 & H/501 | 6 months from the date of manufacturing |
| Both Resin and Catalyst should be stored in a dry and cool place under the shade and preferably below 300C. Exposure to direct sunlight and rain during storage must be avoided. | |
Standard Packing:
| Resin COOLSET 5001 | 230 kg HDPE Drums / 1150 kg IBC (on returnable basis) |
| Hardener COOLSET H/ 301 & H/501 | 240 kg HDPE Drums |