Specialty chemical additives and functional powders — browse by product line below, or contact our technical team for grade recommendations.
Silica & Oxides
9 items- 01
Coating Grade Zinc Oxide — Anti-Corrosion & UV Shielding
UV-shielding, anti-fungal, and anti-corrosion functional pigment for exterior architectural, wood, and industrial primer systems. ≥ 99.7% ZnO with optional silane or stearic acid surface treatment for improved dispersion.
View - 02
Electronic Grade Zinc Oxide — 99.95% Pure for MLV & MOV
≥ 99.95% ZnO for MLV varistors, MOV surge arrestors, ferrite cores, and SAW filters. Indirect-process material with Pb ≤ 5 ppm and Cd ≤ 3 ppm — verified lot-by-lot by ICP-MS.
View - 03
Fumed Alumina
Expert answers to the most common queries regarding fumed aluminum oxide applications and formulation integration.
View - 04
Fumed Silica
Select the optimal hydrophilic or hydrophobic grade based on your resin system’s polarity and viscosity requirements.
View - 05
Matting Agent
Performance analysis of micronized silica for advanced coating systems.
View - 06
Pharmaceutical Grade Zinc Oxide — USP / EP / JP Compliant
USP, EP, and JP-compliant zinc oxide for topical ointments, sunscreens, calamine lotion, and antifungal preparations. Lot-tested for heavy metals and microbial limits — CoA traceable to indirect-process source.
View - 07
Precipitated Silica
Serve as the premium-grade precipitated hydrated silica specifically engineered to serve as the primary friction agent in modern toothpaste formulations.
View - 08
Rubber Grade Zinc Oxide — Vulcanization Activator Supplier
Vulcanization activator for tire, conveyor belt, footwear, and industrial rubber. ≥ 99.7% ZnO with controlled D50 and sieve residue. Active ZnO (high-surface-area, 30 – 60 m²/g) option cuts dosage 30 – 50%.
View - 09
Zinc Oxide: SEMITECH Portfolio — Rubber, Coating, Pharma, Cosmetic, Food, Feed Grades
Zinc oxide (ZnO, CAS 1314-13-2, mp 1975°C) is one of the highest-volume specialty inorganics globally, consumed across an unusually wide range of industries — rubber and tyre vulcanization at 3–5 phr loading, paint and c
View
Silicone
12 items- 01
Amino-Modified Textile Silicone Emulsions
Compare the core physical properties of the 6 major MESIL® TX series grades to find the exact formulation for your process.
View - 02
Hydrogen Terminated Silicone Oil
Compare viscosity and hydrogen content across the THF series to calibrate your silicone rubber compounding.
View - 03
MESIL Hydrogen Silicone Fluid
Hydrogen-functional silicone is the crosslinker (Part B) in two-component addition-cure thermal interface materials. SEMITECH offers multiple architectures so TIM compounders can dial in crosslink density and final modul
View - 04
MESIL OH Polymer
Physical properties of MESIL® OH Polymer. All grades share a standard Refractive Index (25°C) of 1.401-1.403 and a Colorless clear liquid appearance.
View - 05
MESIL® EM silicone emulsions
Compare viscosity profiles and solid content across the EM series to optimize your formulation.
View - 06
Silicone Curing Catalysts — SEMITECH Portfolio (DBTDL, Karstedt Pt, DCBP, Titanate)
Silicone elastomers cure by one of three fundamentally different chemistries, and the catalyst is what makes the chemistry happen. Condensation cure (RTV-1 sealants, RTV-2 mould rubber, dental impression) crosslinks sila
View - 07
Silicone Defoamers — SEMITECH Portfolio (Polyether-Modified, Mineral-Oil, Food-Grade)
A silicone defoamer is a deliberately incompatible additive. Its surface tension (typically 20–22 mN/m for PDMS) sits well below that of the foaming aqueous or organic medium it is dosed into — and incompatibility is exa
View - 08
Silicone Fluids & Emulsions
High-purity liquid silicones engineered with active functional groups (Vinyl, Si-H, Silanol) for precise cross-linking and compounding in addition-curing and condensation-curing systems.
View - 09
Silicone Intermediates — SEMITECH Portfolio (DMC, D4, D5, TEOS, HMDS, OH-PDMS)
The organosilicon industry begins with metallurgical-grade silicon (Si) reduced from quartz, advances through chlorosilanes (HSiCl₃ / SiCl₄ / methylchlorosilanes from the Müller-Rochow direct synthesis) into hydrolysis i
View - 10
Textile Amino Silicone Oils & Emulsions
Compare the precise physical testing parameters of the Emulsion Series and the Amino Oil Series to formulate your optimal textile finishing solution.
View - 11
Vinyl Silicone Fluid
Data drives formulation. Compare the exact viscosity and vinyl content parameters across the MESIL® 206 series to match your crosslinking requirements. All grades operate under CAS No. 68083-19-2.
View - 12
Water-Based Silicone Emulsions
How do you match the right emulsion to your chemical matrix? We have streamlined our MESIL® portfolio into two distinct property sets. Note: BS 6340E and BS 6042E share identical physical parameters, offering supply chai
View
Coupling Agents
2 items- 01
Silane Coupling Agents — SEMITECH Portfolio
The global silane coupling agent market is led by three Western producers — Dow (operating the Momentive Silquest A-series after the 2020 acquisition), Evonik (Dynasylan brand and the Si-69/Si-75 tire-silane franchise),
View - 02
Zirconate Coupling Agents — SEMITECH Portfolio (Kenrich NZ / LICA Equivalent)
Organozirconates occupy the highest performance tier in the coupling-agent stack. Silanes dominate glass and silica surfaces; titanates dominate calcium carbonate and proton-donor fillers; zirconates extend the playbook
View
Performance Additives
3 items- 01
Anti-Corrosive Pigment
A: JP-8018 and JP-B808 are the premier choices for chrome-free high-gloss coatings. These Molybdate and Zinc Phosphate formulations comply with heavy metal standards while maintaining vibrant color and superior substrate
View - 02
Conductive Powder
Ideal for anti-static flooring systems, offering superior conductivity with minimal addition rates.
View - 03
Flame Retardants: SEMITECH Halogen-Free Portfolio — ATH, MDH, Surface-Treated Fillers, Zinc Borate
The flame retardant industry is undergoing a structural pivot away from brominated chemistries toward halogen-free systems — driven simultaneously by REACH SVHC restrictions on legacy brominated FRs (HBCD, decaBDE, PBDEs
View
Other
- 01
Industrial Silica Gel — White Desiccant Grade
Synthetic silica gel desiccant beads (2–5 mm, Type A/B) with water adsorption capacity >25 Wt%, for container desiccant packets, pharmaceutical packaging, and industrial air-drying systems.
View - 02
Silica Aerogel Powder — Hydrophobic Thermal Insulation Grade
Hydrophobic amorphous silica aerogel powder with thermal conductivity ~0.015 W/(m·K) at 25°C — superinsulating filler for aerogel blankets, thermal paint, and lightweight composite panels.
View - 03
Zinc Oxide (ZnO) — Electronic, Pharma, Rubber & Coating Grades
Choose by purity class and target application — heavy-metal limits and particle size are the two most common procurement gates.
View
Titanate coupling agents, titanium alkoxides, chelates, and functional TiO₂ — complementing silicon chemistry in PVC, PET, and coating systems.
Methyl, amino, hydrogen, and phenyl silicone fluids and emulsions — high-purity intermediates for textile, personal care, and industrial formulations.
Products — grade recommendation & samples.
Submit formulation targets (gloss, system, DFT, volume). A SEMITECH chemist will recommend the right grade and ship a lab sample.