Tradename ò
Composition
Supplier

Properties

Function & Compounding

Struktol WB 700A
Zinc oxide 91%; dispersing agent 9%
Struktol Company of America, LLCï

Specific gravity: 3.85; bulk density: 1,200; ash content: 91%; appearance: non-dusting powder

A non-dusting powder and is preferably used, where high amounts of dispersing agents are undesirable; shorter mixing time can be achieved compared to powered zinc oxide due to faster incorporation and the temperature of the compound is increased only slightly, which is an advantage in scorchy stocks; can be used in small dosages due to the uniform dispersion of the zinc oxide; formation of agglomerates, variations of the physical values and brittleness of the vulcanized rubber are reduced; physical properties of the vulcanizates are improved, especially after aging.

Struktol WB 900A
Magnesium oxide dispersion
Struktol Company of America, LLCï

Specific gravity: 2.09, magnesium oxide: 75+/-1, appearance: tan bead

Struktol metal oxide preparations may be used in rubber compounds where the dispersion of untreated metal oxides gives rise to problems; they reduce sticking to the rotor blades and mill rolls; WB 900A provides protection against humidity and carbon dioxide.; reduces the scorch risk of polychloroprene compounds.

Struktol ZEH
Zinc 2-ethylhexanoate
Struktol Company of America, LLCï

Specific gravity: 1.20, zinc content: 24% max, viscosity at 25°C (mPa-s): 7000 max, appearance: high viscosity liquid

A rubber soluble zinc soap used as an activator for natural rubber; used instead of stearic acid and reduces stress relaxation and primary creep of NR-vulcanizates, especially in combination with soluble EV-systems; dosage: 1-3 phr.

Struktol ZEH-DL
Zinc 2-ethylhexanoate coated on silica powder
Struktol Company of America, LLCï

Specific gravity: 1.46, zinc content: 16.6% max, silica content: 33.3%, appearance: light powder

Rubber soluble activator for natural rubber compounds when used in place of stearic acid improves stress relaxation and primary creep of NR compounds; especially effective with soluble EU-systems; concentrations - 1.5 - 4.5 Phr.

Struktol Zimag 29/43A
Free-flowing granulate consisting of: 29% zinc oxide, 43% magnesium oxide and 28% wetting and dispersing agent.
Struktol Company of America, LLCï

Specific gravity: 2.11, bulk density: 800 (kg/m³), ash content: 70%, appearance: gray powder.

A cross-linking agent consisting of a 2:3 ratio of zinc oxide to magnesium oxide for chloroprene compounds to reduce scorch; dosage: 4-8 phr.

Struktol Zinc Laurate
Zinc salt of lauric acid
Struktol Company of America, LLCï

Specific gravity: 1.08; drop point: 125-135°C; appearance: white pastille or course powder

Used as an activator for thiazoles, thiurams and dithicarbomates by supplying fatty acid and soluble zinc; dosage: 1-5 phr; Call for FDA status.

Struktol Zinc Stearate
Manufactured from a high quality technical grade stearic acid in a tightly controlled production operation that guarantees product uniformity.
Struktol Company of America, LLCï

Appearance: Three forms are available – bead, pastille, and powder; zinc stearate bead is a free-flowing spray-dried microbead; the pastille is lens-shaped and approximately 1/8 inch in diameter; the bead and pastille are relatively new product forms in the industry; they have the major advantage of being essentially dust-free during handling, in contrast to powder forms; in all other aspects, the properties are equivalent to the standard stearates being used in the plastic and rubber industries.

Serves primarily as a lubricant, but also as a densifying agent and a partitioning agent; used extensively in color concentrates as a dispersion aid; used to improve processing of the styrenics and polyesters, and to a lesser extent with the olefins; In rubber applications, it functions as an elastomer processing aid and release agent.

Suprmix Triethanolamine 85
Triethanolamine - silicate blend
The HallStar Co.ï

Sp.gr. 1.277; light buff, non-dusting powder; pressure sensitive; shipped: fiber drums.

NR, SBR, latex activator; dispersing agent; use in Hi-Sil, Silene and Zeolite loaded stocks; use 3-6% on filler content.

TEA-DLC-A
72% triethanolamine on silica powder
Natrochemï

Sp.gr. 1.30; dustless powder; shipped: bag.

NR, SBR activator; neutralizes clay acidity; add directly; incorporates rapidly.

Thanecure T9 (TDI Dimer)

R.D. Abbott Co., Inc. (RDAbbott)ï

Thanecure T9 is dimerized TDI and is used as a vulcanization agent for isocyanate cured millable urethanes. It is also used as an adhesion promoter for rubber to textile bonding.

Thanecure ZM
Zinc chloride dibenzothiazyl disulfide complex
TSE Industries Inc.ï

Sp. gr. 1.80; yellowish powder

Activator for sulfur and peroxide cross-linkable polyurethane rubber.

Tribasic Lead Sulfate FlowSperse
Various percentages of tribasic lead sulfate in different carriers
Flow Polymers LLCï

Paste or elastomeric dispersion.

Ease of incorporation and handling.

Triethanolamine
Triethanolamine
The Dow Chemical Companyï

Sp.gr. 1.124-1.130; viscous, pale yellow liquid; slight ammonia odor; hygroscopic; Bp (150 mm). 277-279°C. pH (25% solution); 11.2 flash pt. about 360°F; d, about 9.4 lb/gal.

NR, SR, latex activator; dispersing agent neutralizes clay acidity; improves processing reduces gas permeability; somewhat increase tear resistance; sBR activator with certain accelerators; add directly.

Triethylene Glycol
Triethylene glycol
The Dow Chemical Companyï

Sp.gr. 1.124-1.127; clear, colorless, hygroscopic liquid; Bp. 278-300°C; flash pt. 330°F; d, 9.39 lb/gal. at 20°C.

NR, SR, latex activator with non-black reinforcers.

Ultra (ZNO) 88
88% zinc oxide treated with a proprietary polymeric binder
Polychem Dispersionsï

Sp.gr. 3.50; shipped 50 lb. bags.

Semi dustless and free flowing powder.

Unipaste (P II)
Finely ground urea with fatty acid compounds.
DJ Semichemï

Fine white powde; avoid moisture conditions.

Used as accelerator/activator for nitrogen releasing CBA; used as companion to DNPT blown sponges to reduce odors in sponges.

Urea, WUF-16
Urea
Sovereign Chemical Companyï

Coated or oil treated powder

Activator for nitrogen type blowing agents; product is hygroscopic and relatively non-dusting.

Westco CAO-80
Calcium oxide disp.
Western Reserve Chemicalï

Sp.gr. 2.1; a fine dispersion of CAO in a high viscosity processing oil.

Activator, desiccant, absorbs moisture and prevents porosity.

Westco CAO-90
Calcium oxide dispersion
Western Reserve Chemicalï

Sp.gr. 2.44; 86% min. calcium oxide in a high viscosity process oil

Activator; dessicant, absorbs moisture and prevents porosity in rubber.

Westco MO-140
Magnesium oxide
Western Reserve Chemicalï

Fine white powder; surface area 45 m²/g.

Scorch retarder, curing agent and acid acceptor in polychloroprene and other chlorinated polymers.

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