Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Industrial Additives Functions
Features & Benefits
- Labeling Claims
- CASE Ingredients Features
- Industrial Additives Features
- Product Highlights
United Erie has readily available competitive PUCB binder systems designed to meet your production requirements. Unicure is a “true” phenolic urethane binder system providing all the benefits of an accredited PUCB binder system. Used with either standard triethylamine (TEA) or dimethylethylamine (DMEA), Unicure systems are suitable for a fast-paced high production PUCB foundry.
- Unicure systems maintain high “out of box” tensile strengths with excellent moisture resistance for long core shelf-life
- In keeping with a well-vented TEA/DMEA environment extended sand resin bench life can be expected, lasting 8-10 hours
- Good shakeout characteristics, good casting quality
- A built-in internal release agent provides for improved core release
- Unicure Series Features & Characteristics
- Superior Out-of-Box Strengths
- Reclaimable
- Great Bench-Life
- High Eventual Strength
- Unicure Series Benefit Summary
- Higher Production Rates
- Excellent Release/Reduced Resin Wipe-Off
- Excellent Humidity Resistance
- Longer Core Shelf-Life
- Improved Casting Quality
Applications & Uses
- Markets
- Applications
- Applicable Processes
- Compatible Substrates & Surfaces
- Industrial Additives End Use
- Product Application Instructions
- Mixing/Curing: Unicure systems can be used with either a continuous or batch mixer, which feeds into a hopper to await blowing into tooling. Silica and Lake sands have proven suitable for use with this system. Sand temperatures of 75°F to 85°F are ideal. The use of heated sand or exposure to atmospheric TEA/DMEA can shorten sand resin bench-life, in hoppers. Mixers should be kept clean and calibrated on a regular basis. Tooling vents should be kept clear to maintain a sufficient flow of gas and purge air. Total binder levels between 0.90% and 1.70% are generally recommended, depending on individual operational needs. Typical binder level is 1.00% to 1.50% total, based on the weight of sand (BOS). Gas time/pressure and purge time/pressure vary greatly on type of core being produced. A typical full cure cycle would involve a 1 - 3 second gas time followed by a 7-10 second purge time.
- Mold/Core Making: Unicure systems yield flowable sand mixes, for extended periods of time. Blow pressures of 60 psi are generally recommended. Density is directly related to casting surface quality. A sand resin mix that has reached the end of its work time should not be used. If desired, an aluminum powder-based release can be used to coat the pattern surface. Do not use chlorinated solvent type of washes.
- Coating: Most refractory coatings can be used with Unicure systems. Water-based core washes have proven successful in improving casting surface qualities. United Erie’s Top Bond B surface hardener has proven to be effective as an alternative to other coatings. Top Bond B produces excellent surface scratch hardness and further enhances moisture resistance.
Technical Details & Test Data
- Unicure Series Binder System Chemistry
- Traditional PUCB
- Cured with Gaseous
- Amine
- 2-Part System
Packaging & Availability
- Packaging Type
- Packaging
Unicure systems are available in:
- Bulk
- 275 gallon mini tanks (totes)
- 55 gallon drums
- 5 gallon pails
Storage & Handling
- Product Handling
Avoid contact with skin and eyes.