Water Based Penetrant Product Comparison

 

ZL-4C

ZL-405

ZL-425

ZL-440
Penetrant Type Type 1 Type 1 Type 1 Type 1
Level N/A Level ½ Level 1 Level 2
Removal Type N/A Water washable Water washable Water washable
Method   A A / C B / C / D
QPL Qualified Product     ✔ ✔
AMS 2644     ✔ ✔
ASME ✔      
ASTM E165 ✔      
ISO 3452-2   ✔ ✔ ✔

Frequently Asked Questions

How quickly will I receive a quote?

We respond to all quote requests within one business day (Monday–Friday, Pacific time).

Do you offer volume pricing?

Yes. Pricing tiers are available for qualifying quantities. Include your expected annual volume in the form for the best pricing.

Can you supply NADCAP- or OEM-approved materials?

We stock and source materials qualified under AMS 2644, MIL-I-25135, ASTM E1417, and select OEM approvals. Include your specification number and we will confirm availability.

Do you drop-ship or provide blanket orders?

Yes. Contact us to discuss blanket purchase orders, scheduled releases, and direct drop-ship arrangements.