CERASET
(Two Part Phenolic Ester Binder System)
Product
CERASET R-301 is a highly alkaline phenol formaldehyde resin cured by CERASET C-310 at ambient temperature. The process is also known as phenolic ester nobake or Alphaset process. The resin cures in two stages, in first stage partial curing takes place and in second stage when mould or core comes in contact with molten metal.
The CERASET R-301 offers high hot strength than any other process. The process is nitrogen and sulphur free.
CERASET R-301 Phenol Formaldehyde alkaline resin acts as a binder
CERASET C-310 Ester catalyst.
CERASET C-310 is available in three versions Slow, Medium and Fast. Type of
CERASET C-310 decides bench life and strip time.
Applications
CERASET R-301 along with CERASET C-310 is used for making sand moulds and cores for Steel, S.G.Iron, CI and non-ferrous castings. The process comparatively less sensitive towards sand quality.
The process offers excellent thorough cure and stripping properties from pattern. Easy release from pattern is because of two stage curing mechanism of the process.
CERASET can be used with fresh sand, reclaimed sand or olivine sand.
Physical Properties
| PRODUCT | CERASET R-301 | CERASET C-310 |
| COLOUR | Reddish Brown | Colourless to pale yellow |
| APPEARANCE | Clear Liquid | Clear Liquid |
| SPECIFIC GRAVITY @30°C | 1.20 – 1.30 | 1.05 – 1.15 |
| VISCOSITY BY B4 CUP @30°C | 25 - 50 second | -- |
| Shelf Life from the date of manufacture | 2 months | 6 months |
ADVANTAGES
Material Safety Data Sheet (MSDS) is Available on Request
SAND MIX PREPARATION
| Dry silica sand [AFS 50-70] | 100 parts |
| CERASET R-301 | 1.5 - 2 % based on sand |
| CERASET C-310 | 20-25 % based on CERASET R-301 |
Sand mixing can be done in either batch or continuous mixer, but one should ensure for no free resin lumps in sand mix.
Mixing cycle:
Dry silica sand + CERASET C-310-- mix for 1-2 minutes
+ CERASET R-301 mix for 2 - 3 minutes.
These are typical mixing times, which can vary with speed and type of mixer.
Note:- Some times water 0.05 -0.2% addition needed to get the good properties when ambient temp. is high.
Bench Life- 5-20 minutes
Stripping Time– 20-60 minutes.
Strength Compressive (Resin-1.8% of sand, Catalyst-20% of Resin)
| Time | Strength in kg/cm2 |
| 1 Hr | 5-8 |
| 4 Hr | 8-16 |
| 24 Hr | >20 |
Strength will vary with quality of sand and ambient atmospheric conditions.
Mould & Core Wash:We recommend water / alcohol base refractory wash.
Shelf Life
Standard Packing
Storage & Handling
CERASET R-301 and CERASET C-310 should stored separately, away from direct source of heat, moisture and under roof at below 30°C.
Never mix CERASET R-301 and CERASET C-310 together in a container, without sand. Direct mixing of CERASET R-301 and CERASET C-310 cause violent exothermic reaction.
Handle CERASET R-301 and CERASET C-310 with proper care by using safety tools like chemical resistance hand gloves, safety goggles.
Our Products
We offer a wide range of foundry products and services to meet the requirements of iron, steel and non-ferrous
foundries to help them to reduce defects, improve casting quality and optimise production costs.
