Products for Plastics
dar-tech, inc. distributes specialty chemicals and raw materials from its global network of suppliers that are used to compound, process and test various thermoplastics. These fillers, additives, pigments, colorants, heat stabilizers, flame retardants, defoamers, and anti-blocking, dispersing and coupling agents, enhance the properties of plastic compounds and the performance of articles fabricated from them.
MEET OUR SUPPLIERS
AFCONA ADDITIVES INC. (7000 series)
Wetting and dispersing additives, deaerators, flow and leveling agents, and rheology modifiers for PU, PMMA, PVC, epoxies, unsaturated polyester systems.
BLACHFORD
Calcium Stearate as stabilizer for PVC, and as a process aid and anti-caking additive for many other plastics. These are suitable for 21CFR FDA indirect food contact and NSF applications. Zinc Stearates that act as stabilizers for liquid colorant systems. These, too are suitable for 21CFR FDA indirect food and NSF applications. Calford® Ethylene bis Stearamide waxes that can be used as an internal/external lubricant, a release/anti-blocking agent and a dispersing agent for pigments.
BORICA
Tytan® Titanate coupling & dispersing agent that allows higher filler loading without sacrificing mechanical strength.
BURGESS PIGMENT
Burgess Pigment is a manufacturer of hydrous and anhydrous kaolin for industry. Calcined kaolin options, as well as flash calcined kaolin grades are available. Kaolin products provide increased strength and endurance in
various polymers. Kaolin increases resistance to warping, chemical damage and electrical damage.
BYK INSTRUMENTS
Equipment for color measurement, microscopes and impact testers.
CHEMOURS
A large portfolio of Ti-Pure® Titanium Dioxide products to solve your color, opacity and weatherability design issues.
COVIA Corp.
Minbloc® anti-blocking agents and thermal fillers. HIFILL® Calcium Carbonate and HIFILL N® Nephylene Syenite, a performance filler that imparts better scratch and mar resistance, improve weatherability of the compound, and is available in a range of particle sizes.
DCL CORPORATION
A wide range of inorganic and organic pigments used in Olefins, PVC and engineering plastics in molding, film and fiber applications.
HAUTHAWAY CORPORATION
A broad portfolio of water-based polyurethane dispersions for coating plastics. Bio-renewable grades are available.
MAGRIS TALC
Mistron® Nicron® and Vertal® talc reinforcing fillers and anti-blocking agents, often used as a nucleating agent.
SIBELCO
A unique range of mineral-based flame retardants. PORTAFLAME Alumina Trihydrate (ATH), SECUROC Magnesium Carbonate, CASIFLUX Wollastonite and Portafer® Magnetite.
SOUTHEASTERN PERFORMANCE MINERALS, LLC
A large family of muscovite mica products used in Engineering resins, Wire & Cable, films and plastisols.
APPLICATIONS
HEAT STABILIZERS
Prevent degradation (typically PVC) during processing and in service
Features: Scavenges HCl, hindering auto-degradation
Benefits: Wider processing window, longer service life
Suppliers: Blachford
PIGMENTS/COLORANTS
Impart opacity and color to plastics
Features: Added to plastics during processing or compounding
Benefits: Protection from UV and makes articles more attractive to the consumer
Suppliers: Chemours, DCL Corporation
FLAME RETARDANTS
Reduce the burn rate of plastics
Features: Various mechanisms including water vapor release and smoke suppression
Benefits: Makes plastic products safer for the consumer
Suppliers: Sibelco
ANTIBLOCKING AGENTS AND PROCESS AIDS
Reduce the tendency of some fabricated plastics to stick together
Features: Internal and external lubricants
Benefits: Makes product easier for consumer to handle and use.
Supplied by: Blachford, Covia, Magris Talc, PCC Group
TESTING EQUIPMENT
Used in R&D as well as Quality control
Features: Measure properties of plastic resin systems
Benefits: Insures adherence to specification, and fitness-for-use
Suppliers: BYK Instruments
COUPLING & DISPERSING AGENTS
Allow higher filler loading without sacrificing mechanical strength
Features: Is incorporated into the polymer to improve dispersion
Benefits: Lowers compound cost, increases flame retardation
Suppliers: Borica
ADDITIVES FOR LOW-VISCOSITY POLYMERS
Used to reduce air inclusion (defoamers, deaerators), surface finish (levelers, wetting agents) and handling (antisettling agents, dispersing agents ) of liquid systems.
Features: Enhance the performance properties of these resins
Benefits: Better optics, surface finish and consistency
Suppliers: AFCONA
