---
title: "Sherwin Dubl-Check"
canonical: "https://www.fl-sz.cn/en/brands/sherwin-dubl-check"
lang: "en"
type: "brand"
publisher: "ShangHai F&L Petrochemical Co.,Ltd."
pricing: "not-published"
manufacturer_site: "https://www.sherwininc.com/"
alternate: "https://www.fl-sz.cn/zh/brands/sherwin-dubl-check.md"
---

# Sherwin Dubl-Check

> Source (canonical): https://www.fl-sz.cn/en/brands/sherwin-dubl-check
> 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/sherwin-dubl-check.md

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

## About the brand

Sherwin Incorporated has manufactured the Dubl-Chek line of liquid dye inspection penetrants and accessories since 1964, with a plant in Southern California, a Mid-West centre near Cincinnati, Ohio, and production in Europe. Dubl-Chek products include fluorescent and visible dye penetrants approved by the US Government, ASME, ASTM and major aerospace and military contractors. Fluorescent penetrants are widely used in aerospace, while visible penetrants serve welding and nuclear power industries. The company provides batch-to-batch consistency, free conformance certificates and a global network of NDT distributors. Genuine original products are supplied by Shanghai F&L Petrochemical Co., Ltd. Welcome to consult and purchase: 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