CERASHELL C-210
(TWO PART PHENOLIC ACID BINDER SYSTEM)
Note
CERAREZ R-201 and CERASHELL C-210 have to buy in pair.
Check CERAREZ R-201 Product Discription
CERAREZ R 201Material Safety Data Sheet (MSDS) is Available on Request
SAND MIX PREPARATION
| Dry silica sand [AFS 50-65] (free from carbonates and chlorides) |
100 parts |
| CERAREZ-R-201 | 1.5- 2.0% based on sand |
| CERAREZ-C-210 | 30-60 % based on CERAREZ-R-201 |
Note:- For good quality reclaimed sand, addition level will be
| CERAREZ-R-201 | 1.0- 1.5% based on sand |
| CERAREZ-C-210 | 30-60 % based on CERAREZ-R-201 |
Sand mixing can be done in either batch or continuous mixer, but one should ensure for no free resin lumps in sand mix.
Addition level of CERAREZ-C-210 controls the bench life and strip time.
Mixing cycle:
Dry silica sand + CERAREZ-C-210-- mix for 1 – 1 ½ minutes
+ CERAREZ-R-201-- mix for 2-3 minutes
These are typical mixing times, which can vary with speed and type of mixer.
Bench Life- 5-15 minutes
Stripping time– 20-60 minutes.
Strength Compressive
(Resin-1.5% of sand, Catalyst-40% of Resin)
| Time | Strength in kg/cm2 |
| 1 Hr | 5 - 10 |
| 4 Hrs | 15 - 20 |
| 24 Hrs | >30 |
Strength will vary with quality of sand and ambient atmospheric conditions.
Mould & Core Wash: We recommend water base refractory wash.
Shelf Life
Standard Packing
Storage & Handling
CERAREZ-R-201 and CERAREZ-C-210, should stored separately, away from direct source of heat, moisture under roof at below 30°C
Never mix CERAREZ-R-201 and CERAREZ-C-210 together in a container, without sand. Direct mixing of CERAREZ-R-201 and CERAREZ-C-210 cause violent exothermic reaction.
Handle CERAREZ-R-201 and CERAREZ-C-210 with proper care by using safety tools like chemical resistance hand gloves, safety goggles
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foundries to help them to reduce defects, improve casting quality and optimise production costs.
