---
title: "DSI"
canonical: "https://www.fl-sz.cn/en/brands/dsi-usa-dielectric-fluid-opticool-immersion-coolant-transformer-oil"
lang: "en"
type: "brand"
publisher: "ShangHai F&L Petrochemical Co.,Ltd."
pricing: "not-published"
manufacturer_site: "https://dsiventures.com/"
alternate: "https://www.fl-sz.cn/zh/brands/dsi-usa-dielectric-fluid-opticool-immersion-coolant-transformer-oil.md"
---

# DSI

> Source (canonical): https://www.fl-sz.cn/en/brands/dsi-usa-dielectric-fluid-opticool-immersion-coolant-transformer-oil
> Published by: ShangHai F&L Petrochemical Co.,Ltd. — specialty lubricant and industrial chemical distributor
> F&L distributes and stocks this brand. The items below are held in stock.
> Language: English · Also available in Chinese: https://www.fl-sz.cn/zh/brands/dsi-usa-dielectric-fluid-opticool-immersion-coolant-transformer-oil.md

| Field | Value |
|---|---|
| Country of origin | USA |
| Manufacturer site | https://dsiventures.com/ |

## About the brand

DSi (DSI Ventures, Inc.)founded in 1994 in Tyler, Texas, USA, is a specialty‑chemical manufacturer focusing on dielectric insulating fluids and specialty thermal‑transfer coolants. It develops synthetic functional fluids as alternatives to conventional petroleum‑based and silicone fluids, featuring high dielectric strength, thermal stability, biodegradability and fire‑resistance. Its portfolio covers three major lines: dielectric fluids including Alpha‑1 Fluid™, Beta Fluid™, Inhibit Fluid™ and Sulfur Inhibitor Fluid™ for fire‑resistant transformers to suppress corrosive‑sulfur and protect high‑voltage electrical equipment; Opticool series (Opticool‑A, Opticool‑H, Opticool‑MIL, Opticool‑PH5) for electronics immersion cooling for data centers and RF power electronics; specialty cooling fluids Alpha‑2/4/6 Fluid™ for extreme low‑ and high‑temperature conditions. Balancing electrical insulation and heat dissipation, these fluids deliver good compatibility with metals, plastics and elastomers. They are widely deployed in power transformers, AI data‑center immersion cooling, RF electronics, aerospace and underwater hydraulic systems. Standard grades and custom‑tailored fluids for demanding conditions are available. Shanghai F&L Petrochemical Co., Ltd provides genuine original products, welcome to inquire: 400‑879‑3341.

## Enquiries and technical support

Send the operating conditions — temperature, speed, load, and whether there is food or pharmaceutical contact. An engineer replies with a selection proposal and a written quotation within one business day.

- Enquiry form: https://www.fl-sz.cn/en/contact
- Email: info@fl-sh.com
- Phone: +86-400-879-3341