|
UNISET Alkaline phenolic resin and UNISER Hardener series
UNISET series resins are phenol formaldehyde-based no bake resins that can be cured with esters. UNISER series of hardeners are used for curing of UNISET series resins. As a result of the development of resin and hardener a stable curing speed is obtained and the change of that curing speed with changing sand temperature can be easily estimated. UNISETcan be used to bind both silica, olivine and chromite sand.
Different types of UNISER types are formed from different types of esters to acquire a desired curing speed. Whole series of UNISER hardeners can be used with the entire UNISET resin series.
Resin and hardeners can be supplied in 65 kg cans , 250 kg drums and 1250 kg IBC containers.
UNISET A1
As a universal binder, can be used for making all kinds of molds and cores. In particular, the making of medium-large molds, the molds having low sand-metal ratios, long working hours have been developed for the highest possible strength.
By providing high-strength, low additions can be achieved. With the high quality alkaline materials used in the production of the resin, very high sand reclamation ratios can be achieved.
| Appearence |
Dark red liquid |
pH |
12,5 – 13,5 |
Alkaline amount (%) |
10,5 – 12,5 |
Viscosity (FC4, seconds) |
20 – 35 |
Solid substance (%) |
55 – 65 |
Specific gravity (20°C, gr/cm3) |
1,20 – 1,35 |
UNISET A2
Can be used in the making of all molds and cores. Provides long bench times, especially in hot climates. Even if a fast continuous sand mixer is not available, with S-type traditional sand mixers, a high wetting performance will increase productivity and lowers addition values.
By providing high-performance sand reclamation ratios to the system, will reduce costs for new sand.
| Appearence |
Dark red liquid |
pH |
12,5 – 13,5 |
Alkaline amount (%) |
10,5 – 12,5 |
Viscosity (FC4, seconds) |
20 – 35 |
Solid substance (%) |
55 – 65 |
Specific gravity (20°C, gr/cm3) |
1,20 – 1,35 |
UNISET A3
Is a resin especially developed for use in automatic flaskless molding lines. During molding with an automatic molding line, high curing rates and long bench times will increase the efficiency of the line.
Because of the rapid curing features of the binder, the stripping time required to enter roll-over decreases thus the waiting periods between filling each model is minimized. After stripping, manuplators used for painting and closing copes can be used very efficiently with a minimal teeth slide because of the high strength.
With a decreased addition rate and high sand reclamation ratios, both binder, hardener and new sand costs decrease to aminimum.
| Appearence |
Dark red liquid |
pH |
12,5 – 13,5 |
Alkaline amount (%) |
11,5 – 13,5 |
Viscosity (FC4, seconds) |
20 – 35 |
Solid substance (%) |
55 – 65 |
Specific gravity (20°C, gr/cm3) |
1,20 – 1,30 |
UNISER AK Series Hardeners
These ester based hardeners can be used with 20 - 25% addition rate (based on resin) with all of UNISET series resins. AK series hardeners designed to accomplish various curing speeds, from fast curing times for small and fast molding procedures (UNISER AK 4) to large moulds where a long bench time is a necessity (UNISER AK 41), and all different curing speeds necessary in between
| |
Appearance |
Specific gravity (20°C, gr/cm3) |
UNISER AK 4 |
Colorless, odorless, clear liquid |
1,099 – 1,110 |
UNISER AK 10 |
1,135 – 1,145 |
UNISER AK 16 |
1,150 – 1,170 |
UNISER AK 26 |
1,105 – 1,115 |
UNISER AK 41 |
1,085 – 1,095 |
|
|
